Instruction/ maintenance manual of the product Agilent 86120C Agilent Technologies
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s A Ag ile nt 8 6120C M ulti- W avele ngth Me ter User’ s Guide.
ii Noti ces Thi s docum ent con ta ins p ropri- e tary infor mat io n that is p ro - tected by copyrigh t. All rights are reserved. No p art of thi s d ocum ent m ay rep roduced i n (incl u di ng elec.
iii The Ag il ent 86120C —At a Glanc e The Agi lent 86120 C—A t a G lance The A gil ent 8612 0C M ul ti- W av e len gth Meter m ea sure s th e wa vele ngt h and optic al pow er of lase r light in th e 1 27 0–16 50 wave lengt h ra nge .
iv The A gil ent 86120C — At a Glanc e I n a d d i t i o n t o t h e s e m e a s u r e m e n t s , a “ p o w e r b a r ” i s d i s p l a y e d t h a t sho ws p o wer change s lik e a tradit ional analog mete r .
v The A gil ent 86120C — At a Glanc e Me asu rem ent acc ura cy — it ’ s up to y ou! Fib er-opti c connect ors ar e easily da m age d w hen c o n necte d t o di rty o r damaged cabl es and a cces s or ies. Th e Agil ent 8612 0 C ’ s f ron t-panel INPUT con necto r is no ex cep tio n.
vi Gen eral Saf ety C on s ider at ions General Safety Considerations T h i s p r o d u c t h a s b e e n d e s i g n e d a n d t e s t e d i n a c c o r d a n c e w i t h I E C 6 1 0 1 0 -1 , a n d h a s b e e n s u p p l i e d i n a s a f e c o n d i t i o n .
vii Gene ra l Safety Consi deratio ns WA R N I N G If this instru ment is not used as s pecified, the protec tion provided by the equi pment coul d be impaired. This ins trument must be used in a normal condition (in which all mea ns for pr otection a re intact) only.
viii Gen eral Saf ety C on s ider at ions CAUT ION This pr o d uct com plie s w ith O verv olt age Ca tego ry I I and Pol lution D egree 2 . CAUT ION VEN T ILA TI ON RE QUI REM E NTS : Wh en in sta lling the pr oduc t i n a ca b inet , th e con v ec tio n in to a n d o ut of the p ro duc t mu st n ot b e re st ri ct ed.
Contents Content s-1 The Agile nt 86120 C— At a Gl ance iii Genera l Safety Cons ide ration s vi 1G e t t i n g S t a r t e d Step 1. In sp ec t th e Sh i pmen t 4 S tep 2. Conn e ct the Line-Powe r Cabl e 5 S tep 3. Conn ect a Print er 6 S tep 4. T urn on the Agil ent 86120C 7 Step 5 .
Conte n ts- 2 Contents 4 P r ogramming Commands Co mmon Com ma nds 3 Measure m ent Ins truct ions 15 CALCul ate1 Subs ystem 25 CALCul ate2 Subs ystem 31 CALCul ate3 Subs ystem 44 CO N F ig u re M ea s.
Content s-3 Contents Menu Maps 4 Error Messa ge s 1 1 Front-Panel Fib er-Opt ic Adapters 17 Power C ords 18 Agile nt T ech nologies Serv ice Of fices 18.
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1 St ep 1. Ins p ect t he S hip m ent 1 - 4 S t e p 2 . C o n n e c t t h e L i n e -P o w e r C a b l e 1 -5 S t e p 3 . C o n n e c t a P r i n t e r 1 - 6 S t e p 4 . T u r n o n t h e A g i l e n t 8 6 1 2 0 C 1 -7 S t e p 5 . E n t e r Y o u r E l e v a t i o n 1 -8 S t e p 6 .
1-2 Getting Started Getti ng Starte d Ge tti ng Star te d T h e i n s t r u c t i o n s i n t h i s c h a p t e r s h o w y o u h o w t o i n s t a l l y o u r A g i l e n t 8 6 1 2 0 C . Y o u s h o u l d b e a b l e t o f i n i s h t h e s e p r o c e d u r e s i n a b o u t t e n t o t w e n t y m i n u t e s .
1- 3 Getting Started Ge tting Starte d Me asu rem ent acc ura cy — it ’ s up to y ou! Fib er-opti c connect ors ar e easily da m age d w hen c o n necte d t o di rty o r damaged cabl es and a cces s or ies. Th e Agil ent 8612 0 C ’ s f ron t-panel INPUT con necto r is no ex cep tio n.
1-4 Getting Started St ep 1. I nsp ec t t he Sh i pme n t Step 1. Inspect the Shipment 1 Ve rif y that all system comp one nts o rd ered hav e arri ved by comp aring the shipping forms to t he original purchase order. I nspect all shipping conta iners.
1- 5 Getting Started Step 2. Con nect the L ine-Powe r Cable Step 2. Connect the Line- P o wer Cable WA R N I N G This i s a Safety Class I P roduct (provided wit h protect ive ear th). The mains p lug shall only be inserte d in a socket outlet provided with a protective earth contact.
1-6 Getting Started Ste p 3. Co nnec t a Printer 3 C o n n e c t t h e o t h e r e n d o f t h e l i n e -p o w e r c o r d t o t h e p o w e r r e c e p t a c l e .
1- 7 Getting Started Step 4. T urn on the Agi lent 8612 0C Step 4. Turn on the Agilent 86120C 1 Pr ess the fron t- panel LI NE k e y . A f t e r a p p r o x i m a t e l y 2 0 s e c o n d s , t h e displa y sh ould lo ok simi lar to t he f igu re b elo w.
1-8 Getting Started Ste p 5. Ent er Your El evat ion S t e p 5 . E n t e r Y o u r E l e v a t i o n I n o r d e r f o r y o u r A g i l e n t 8 6 1 2 0 C t o a c c u r a t e l y m e a s u r e w a v e.
1- 9 Getting Started Step 6. Sel ect Mediu m for W avele ngth V alu es S t e p 6 . S e l e c t M e d i u m f o r W a v e l e n g t h V a l u e s B e c a u s e w a v e l e n g t h v a r i e s w i t h t.
1-10 Getting Started Ste p 7. Turn Off Wave leng th Limi ting S t e p 7 . T u r n O f f W a v e l e n g t h L i m i t i n g The instru ment’s P res et k e y s e t s t h e e n t i r e A g i l e n t 8 6 1 2 0 C w a v e l e n g t h ran ge of 12 70– 1650 nm.
1-11 Getting Started Returning the Instrument for Service Return ing the Inst rument for Servi ce T h e i n s t r u c t i o n s i n t h i s s e c t i o n s h o w y o u h o w t o p r o p e r l y r e t u r n t h e i n s t r u m e n t f o r r e p a i r o r c a l i b r a t i o n .
1-12 Getting Started Returning the Instrumen t for Serv ice Prepa ring the inst rument for shipping 1 Write a compl ete d escr iptio n of the failu re and attach it to the ins tr um en t. I n cl ud e a ny s pe ci fi c p er f orm anc e d et ai ls r ela te d t o t he p r o b l e m .
1-13 Getting Started Returning the Instrument for Service 3 P a c k t h e i n s t r u m e n t i n t h e o r i g i n a l s h i p p i n g c o n t a i n e r s .
1-14 Getting Started Returning the Instrumen t for Serv ice.
1-15 Getting Started Returning the Instrument for Service.
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2 Mea suri ng W a ve length and P o wer 2- 3 Peak WL mode 2-4 List b y WL o r Powe r mod es 2-6 T otal power an d a v erage wavel e n gth 2-7 Li mit in g the wa vele ngth meas u rement range 2-8 Me as.
2-2 Maki ng M easure ments Ma ki ng Me a su re men ts Mak ing Measure ment s In this chapter , y ou’l l learn how to mak e a vari et y of fast, accurate m e a s u r e m e n t s .
2- 3 Maki ng Meas uremen ts Meas urin g Wa velen gth and Power M e a s u r i n g W a v e l e n g t h a n d P o w e r T h i s s e c t i o n g i v e s y o u s t e p - b y -s t e p i n s t r u c t i o n s f o r m e a s u r i n g p e a k wa vele ngt h, av era g e wa vel ength, pea k pow er , and total input po we r .
2-4 Maki ng M easure ments Meas urin g Wa vel ength and Po wer Pe ak WL mode When Peak WL is presse d , the dis p la y sho ws the large st ampli tude line i n t h e s p e c t r u m .
2- 5 Maki ng Meas uremen ts Meas urin g Wa velen gth and Power 3 T o m o v e t h e c u r s o r t o v i e w o t h e r s i g n a l s , p r e s s : • PREV W L t o s e l e c t n e x t ( p r e v i o u s ) s h o r t e r w a v e l e n g t h . • NEXT W L to select next longer wav eleng t h.
2-6 Maki ng M easure ments Meas urin g Wa vel ength and Po wer L i s t b y W L o r P o w e r m o d e s I n the list- b y- wa vele ngth or list- by- po w er mode s, the mea surem ents of f i v e l a s e r l i n e s c a n b e d i s p l a y e d a t a n y o n e t i m e .
2- 7 Maki ng Meas uremen ts Meas urin g Wa velen gth and Power Tota l power and average w aveleng th I n t h e t h i r d a v a i l a b l e d i s p l a y m o d e , t h e A g i l e n t 8 6 1 2 0 C d i s p l a y s t h e a v e r a g e w a v e l e n g t h a s s h o w n i n t h e f o l l o w i n g f i g u r e .
2-8 Maki ng M easure ments Meas urin g Wa vel ength and Po wer T h e f o l l o w i n g e q u a t i o n s h o w s h o w i n d i v i d u a l p o w e r s o f l a s e r l i n e s a r e su m me d to ge the r to ob tai n the tota l p o w er va lu e: wh ere, n is t he n u mb er o f l as er lin es inc lu d ed i n th e m eas ur em en t.
2- 9 Maki ng Meas uremen ts Meas urin g Wa velen gth and Power Measuring broadband devices a nd chirped lasers W h e n f i r s t t u r n e d o n ( o r t h e g r e e n P r e s e t k e y i s p r e s s e.
2-10 Maki ng M easure ments Meas urin g Wa vel ength and Po wer Graphical d isplay of optical pow er spectrum A g ra phical displ ay of opt ical p o wer ve rsus wa ve l eng th is sho wn fr om the start wav ele ngth val ue to the stop wa veleng th value.
2-11 Maki ng Meas uremen ts Meas urin g Wa velen gth and Power Inst ru me nt s tat es F o u r d i f f e r e n t i n s t r u m e n t s t a t e s c a n b e s a v e d a n d r e c a l l e d a t a l a t e r ti me.
2-12 Maki ng M easure ments Changi ng the Units and Measure ment Rate C h a n g i n g t h e U n i t s a n d M e a s u r e m e n t R a t e T h i s s e c t i o n i n c l u d e s s t e p -b y - s t e p i n s t r u c t i o n s f o r c h a n g i n g t h e u n i t s and mea sur ement ra te.
2-13 Maki ng Meas uremen ts Changing t he Uni ts and Measur ement Rate 4 Press WL a n d s e l e c t o n e o f t h e f o l l o w i n g u n i t s . T h e n , p r e s s RET URN to com plet e y our selec .
2-14 Maki ng M easure ments Changi ng the Units and Measure ment Rate T o change t he measureme nt speed 1 Press the Se tu p k e y . 2 Press the MOR E s o f t k e y .
2-15 Maki ng Meas uremen ts Defini ng Laser- L i ne Peak s Def i ning La se r- L i ne Pea ks The Agilen t 8 612 0C uses tw o ru les to iden tify val id laser - line peaks. U nderstanding these r ules is essential to getti ng t he m ost from yo u r me a sur em en ts .
2-16 Maki ng M easure ments Def ining Las er -Lin e Peak s Pea k excursi on The peak ex cur sio n define s the rise and fall in ampli tude t hat must t a k e p l a c e i n o r d e r f o r a l a s e r l i n e t o b e r e c o g n i z e d .
2-17 Maki ng Meas uremen ts Defini ng Laser- L i ne Peak s 3 Press PX EXC , and ent er the peak excursi on value . Use the s oftk ey to sel ect the d i git t h at requi res edi ting . Use t he and softke ys to c h a n g e t h e v a l u e . T h e p e a k e x c u r s i o n v a l u e c a n r a n g e f r o m 1 t o 3 0 d B .
2-18 Maki ng M easure ments Measuring L aser Se p aration Mea surin g Las er S epar ation I t i s o f t e n i m p o r t a n t t o m e a s u r e t h e w a v e l e n g t h a n d p o w e r s e p a r a t i o n betw een multiple laser lines.
2-19 Maki ng Meas uremen ts Meas ur ing La se r S epar ati on Cha nnel separ ation S u p p o s e t h a t y o u w a n t t o m e a s u r e s e p a r a t i o n o n a s y s t e m h a v i n g t h e s p e c t r u m s h o w n i n t h e f o l l o w i n g f i g u r e .
2-20 Maki ng M easure ments Measuring L aser Se p aration T o m e a s u r e c h a n n e l s e p a r a t i o n 1 Pr ess the fron t- panel Preset k e y . 2 Press List by WL . 3 Pr ess the Delta On key . Us e the Off k e y t o t u r n o f f t h e m e a s u r e m e n t .
2-21 Maki ng Meas uremen ts Meas ur ing La se r S epar ati on Measur ing fl atnes s Y ou can use rela tive p o w er measu remen ts to mea sure f l atne ss (pre- em phasis) in a WDM s ystem. Sim p l y selec t one ca r rie r as the ref ere nce and me as u re t he rem ai ni ng c ar ri ers r e la tive t o t he r e feren c e l evel.
2-22 Maki ng M easure ments Mea su ri ng Las e r Dr ift Mea sur ing Lase r Drift I n t h i s s e c t i o n , y o u ’ l l l e a r n h o w t h e A g i l e n t 8 6 1 2 0 C c a n b e u s e d t o moni t or drift (cha nges to a laser’s wa vel ength and ampli tude ove r t i m e ) .
2-23 Maki ng Meas uremen ts Me as urin g Laser Dri ft Y o u c a n r e s t a r t t h e d r i f t m e a s u r e m e n t a t a n y t i m e b y p r e s s i n g t h e RESE T sof tk e y.
2-24 Maki ng M easure ments Mea su ri ng Las e r Dr ift maximum wave le ngth an d maxim um power may not have occurre d si mu ltaneously . Display shows abs olut e minimum values s ince the d rift measurem ent wa s sta rted. T his m easurem ent gi ves th e sh ort e st wavele ngth a nd smal lest power measured.
2-25 Maki ng Meas uremen ts Mea suring Sign al-to-Nois e Ratios Measuring Signal- to- Noise Ratios Sign al- to- noise measu rem ents pro vid e a direct indic ation of system p e r f o r m a n c e .
2-26 Maki ng M easure ments Measurin g Signal-t o-Noise Ratios Locat i on of nois e m easur ements Automatic in ter po lat io n W h e n t h e s i g n a l -t o - n o i s e “ a u t o ” f u n c t i o n i s s e l e c t e d , t h e A g i l e n t 8 6 1 2 0 C f i r s t d e t e r m i n e s t h e p r o x i m i t y o f a n y a d j a c e n t s i g n a l .
2-27 Maki ng Meas uremen ts Mea suring Sign al-to-Nois e Ratios Autom ati c inte rpol ation User- ente red wav el ength W h e n t h e s i g n a l -t o - n o i s e “ u s e r ” f u n c t i o n i s s e l e c t e d , t h e Agil ent 8612 0C use s onl y one wav el ength t o measur e the noise po w er f or all signals.
2-28 Maki ng M easure ments Measurin g Signal-t o-Noise Ratios T o m e a s u r e s i g n a l - t o - n o i s e 1 Pr ess the fron t- panel Preset k e y .
2-29 Maki ng Meas uremen ts Measur ing Signal- to-Nois e Ratios wit h Ave ra gi ng Measuring Signal- to- Noise Ratios wit h Av er ag ing When t he lase rs being measur ed are m o dulated , especi al ly with re peti - t i v e d a t a f o r m a t s s u c h a s S O N E T o r P R B S , t h e n o i s e f l o o r i s r a i s e d .
2-30 Maki ng M easure ments Mea su r ing Si gn al -to -N oi s e Ra tio s w it h Av era g ing a v e r a g e s t a k e n s o f a r . T h e m a x i m u m n u m b e r o f a v e r a g e s i s 9 0 0 , t h e mini mu m number of av erag es is 10, and the defa ult ( Pre set) value is 100 av erages .
2-31 Maki ng Meas uremen ts Measuring Fabry-Pe rot (FP) Las ers Meas uring Fabry- Perot (FP) Lasers Th e A g il en t 8612 0C ca n p er for m seve ra l m ea s ure me n ts on F ab r y - Pero t l a s e r s i n c l u d i n g F W H M a n d m o d e s p a c i n g .
2-32 Maki ng M easure ments Measuring Fabry-Perot (FP) Lasers Mea su rem ent Descript ion FWHM FWHM (full widt h at ha lf maxim um ) descr ibe s the spec tra l width of the ha lf-p ower points of the laser , assumi ng a contin uous, Gaussia n p ower dist ribut ion .
2-33 Maki ng Meas uremen ts Measuring Fabry-Pe rot (FP) Las ers PWR T he s um ma tio n of the po we r in ea ch o f t he sel e cted pe ak s, or modes, that satisfy the pe ak-exc ursion and peak-th reshold cri teria . The peak ex cursio n a nd peak thresho ld setting s defin e the laser modes in cl uded in t he m eas ureme nt.
2-34 Maki ng M easure ments Mea su ri ng Mo d ula te d La ser s Mea surin g Modulated Las ers A l a s e r t h a t i s a m p l i t u d e m o d u l a t e d a t l o w f r e q u e n c i e s ( f o r e x a .
2-35 Maki ng Meas uremen ts Me as uring Modul ate d L a se rs The g ra phica l display i s usefu l f or locat ing the se spu riou s wavelengt hs. T h e i r a m p l i t u d e w i l l b e b e l o w t h .
2-36 Maki ng M easure ments Mea suring Tota l Power Gr eater tha n 10 dBm Meas uring Total Power Greate r than 10 dBm The m ax imum t ot al power tha t ca n be mea sur ed by the A gile nt 86 12 0C i s 1 0 d B m . H o w e v e r , w i t h t h e a d d i t i o n o f a n e x t e r n a l a t t e n u a t o r , m o r e p o w e r c a n b e a p p l i e d .
2-37 Maki ng Meas uremen ts Cali b rat ing Meas ureme nts Cali brating Measurements The wav el e ngth of ligh t change s depending on th e m a terial that the l i g h t i s p a s s i n g t h r o u g h .
2-38 Maki ng M easure ments Calib rating Me a sur emen ts T o e n t e r t h e e l e v a t i o n 1 Press the Se tu p k e y . 2 Press the MORE s o f t k e y . 3 Press the CAL s o f t k e y . 4 Pre ss EL EV . 5 Us e the and softk ey s to enter the elevat io n in m et ers.
2-39 Maki ng Meas uremen ts Pri nting Me asuremen t Resu lts P r i n t i n g M e a s u r e m e n t R e s u l t s Me as u rem en t r esu l ts c an b e sen t dir ec tly t o a p ri nt er . S imply c onn ec t a compat ible printer to t he rear - panel P ARALL EL PR INTE R POR T c o n - n e c t o r .
2-40 Maki ng M easure ments Cl eaning C onn ection s for Accur ate Measure m ent s Cle an ing Connect ions for Accurat e Measurements T oday , advance s in measu rement capabil ities make connectors and conne ction techniqu es more impo rt ant than ev er .
2-41 Maki ng Meas uremen ts Cle aning Co nnect ions for Acc ura te Measur ement s • I s an instrume nt- grade connector with a precis io n core al ignment re- quired? • I s r e p e a t a b i l i t.
2-42 Maki ng M easure ments Cl eaning C onn ection s for Accur ate Measure m ent s Figure 2- 4. Universal adapter s to Diamo nd HM S-10. T h e H M S -1 0 e n c a s e s t h e f i b e r w i t h i n a s .
2-43 Maki ng Meas uremen ts Cle aning Co nnect ions for Acc ura te Measur ement s T h e s o f t c o r e , w h i l e a l l o w i n g p r e c i s e c e n t e r i n g , i s a l s o t h e c h i e f l i a b i l - i t y o f t h e c o n n e c t o r . T h e s o f t m a t e r i a l i s e a s i l y d a m a g e d .
2-44 Maki ng M easure ments Cl eaning C onn ection s for Accur ate Measure m ent s Us e the f oll o wing guidel ines to achiev e the be st pos sibl e perf ormance when maki ng measur ement s o n a fib.
2-45 Maki ng Meas uremen ts Cle aning Co nnect ions for Acc ura te Measur ement s Figure 2 -8. Dama ge f rom improper cleaning . W h i l e t h e s e o f t e n w o r k w e l l o n f i r s t i n s e r t i o n , t h e y a r e g r e a t d i r t m a g - n e t s .
2-46 Maki ng M easure ments Cl eaning C onn ection s for Accur ate Measure m ent s t o r p r e s s u r e . A l s o , i f a p i e c e o f g r i t d o e s h a p p e n t o g e t b y t h e c l e a n i n g pr oced ure, the tig h ter conn ecti on is more lik ely to dama ge the glass.
2-47 Maki ng Meas uremen ts Cle aning Co nnect ions for Acc ura te Measur ement s Visual i nspe ction of fi be r e nds V i s u a l i n s p e c t i o n o f f i b e r e n d s c a n b e h e l p f u l . C o n t a m i n a t i o n o r im perfectio ns on the cabl e end face can be detected as well as cracks o r c h i p s i n t h e f i b e r i t s e l f .
2-48 Maki ng M easure ments Cl eaning C onn ection s for Accur ate Measure m ent s CAUT ION A gi le nt T e c hno l og ie s s t ro ng ly re c om me nd s th at in de x ma tc hi ng c om po un ds not be a pplied to t heir instruments and accessories.
2-49 Maki ng Meas uremen ts Cle aning Co nnect ions for Acc ura te Measur ement s pap er. 4 Clea n the f iber end with the swab or l ens paper. Do not s c r u b d u r i n g t h i s i n i t i a l c l e a n i n g b e c a u s e g r i t c a n b e c a u g h t i n th e swa b and be c om e a go ugi n g el em en t.
2-50 Maki ng M easure ments Cl eaning C onn ection s for Accur ate Measure m ent s Alt h ough foam swabs can l eave filmy dep osits, these deposits are very thin , and the risk o f oth er contamination buildup on the inside o f adapt- er s greatly outweigh s the risk of co n taminat ion by foam sw abs.
3 Ad dr essi ng and Ini tia lizi ng the Instrument 3- 3 T o change the GPIB add ress 3-4 Making Me asurements 3- 5 Comma nds are gr ouped in subs yst ems 3-7 Me asu r em en t ins tr uct io n s giv e q.
3-2 Programmin g Programmi ng Progr amming Th is cha pter e xpl ains ho w t o prog ram t he Agil en t 86120C . Th e pr o - gr am m in g sy nta x co nf or ms to th e IE EE 48 8.
3- 3 Program ming Add ress ing a nd Init iali zing th e Instru ment Add re ssi ng and I ni t iali zi ng th e I nst ru men t The A gil ent 86120C ’s GPIB addr ess is configur ed at t he fa ctor y to a v a l u e o f 2 0 .
3-4 Programmin g Addr essin g and Initi a l izing t he In strumen t N o t i c e i n t h e e x a m p l e a b o v e , t h a t t h e c o m m a n d s a r e s e n t t o a n i n s t r u - m e n t a d d r e s s o f 7 2 0 . T h i s i n d i c a t e s a d d r e s s 2 0 o n a n i n t e r f a c e w i t h s e l e c t c o d e 7 .
3- 5 Program ming Mak in g M easureme nts Ma ki ng Measu rem ents Mak ing measuremen ts re m otely inv ol ves changin g the A gilen t 8 6120C’s setti ngs, perf orming a measure m ent, and t he n returning the dat a to the com puter .
3-6 Programmin g Ma ki ng Me a su re men ts A f t e r c o l l e c t i n g t h e u n c o r r e c t e d d a t a , t h e A g i l e n t 8 6 1 2 0 C s e a r c h e s t h e d a t a f o r t h e f i r s t 2 0 0 p e a k r e s p o n s e s . ( F o r W L I M i t : O F F , s e a r c h i n g st ar t s at 1650 nm an d p rog res se s t owards 1270 nm .
3- 7 Program ming Mak in g M easureme nts Co mmands are grou ped in sub sy s t ems The A gilen t 86120C commands are group ed in t he fo llo wing sub- s y s t e m s . Y o u ’ l l f i n d a d e s c r i p t i o n o f e a c h c o m m a n d i n Chapter 4, “Pro- g ramming C omman ds” .
3-8 Programmin g Ma ki ng Me a su re men ts Table 2- 4. Com mands fo r Cap turing Data Desi red Meas uremen t Comma nd to Conf igur e Measu rement (parti al l isting) Comm and to Que ry Data W avele n.
3- 9 Program ming Mak in g M easureme nts Measurement instructions give quick results The easies t wa y to mea sur e wa ve lengt h, freq u en cy , or po wer is to use the MEA Sure command . The ME ASur e command is one of f o ur mea- s u r e m e n t i n s t r u c t i o n s : M E A S u r e , R E A D , F E T C h , a n d C O N F i g u r e .
3-10 Programmin g Ma ki ng Me a su re men ts A c o m m o n p r o g r a m m i n g e r r o r i s t o s e n d t h e : M E A S u r e c o m m a n d w h e n t h e i n s t r u m e n t i s i n t h e c o n t i n u o u s m e a s u r e m e n t a c q u i s i t i o n mode.
3-11 Program ming Mak in g M easureme nts Als o, becau se new data is not collecte d, F ETCh is especial ly usefu l wh en ch ar act eri zi ng t ra n sie nt d at a.
3-12 Programmin g Ma ki ng Me a su re men ts A l w a y s f o r c e t h e A g i l e n t 8 6 1 2 0 C t o w a i t f o r n o n - s e q u e n t i a l c o m - mands The A gilent 8 612 0C normall y pro cesses its remote progra mming com- mands sequenti ally.
3-13 Program ming Mak in g M easureme nts T h e b e n e f i t o f n o n -s e q u e n t i a l c o m m a n d s i s t h a t , i n s o m e s i t u a t i o n s , th ey can r ed uce t he overa ll exe cu t ion t im e s of pr og ra ms .
3-14 Programmin g Ma ki ng Me a su re men ts Measur e delta, dr ift, a nd signa l- to- noise T o s e l e c t a m e a s u r e m e n t , u s e o n e o f t h e f o l l o w i n g S T A T e c o m m a n d s.
3-15 Program ming Mak in g M easureme nts Th e form at o f ret urn ed da ta M e a s u r e m e n t s a r e r e t u r n e d a s s t r i n g s A l l m e a s u r e m e n t v a l u e s a r e r e t u r n e d f r o m t h e A g i l e n t 8 6 1 2 0 C a s ASCII strings.
3-16 Programmin g Mo nitorin g th e Inst rument Mon itoring the Inst rument A l m o s t e v e r y p r o g r a m t h a t y o u w r i t e w i l l n e e d t o m o n i t o r t h e Agilent 86120C f or its operating st atus.
3-17 Program ming Monit oring th e Ins t rument Stat us reg iste rs T h e A g i l e n t 8 6 1 2 0 C p r o v i d e s f o u r r e g i s t e r s w h i c h y o u c a n q u e r y t o moni t or the instrume nt’s cond ition.
3-18 Programmin g Mo nitorin g th e Inst rument.
3-19 Program ming Monit oring th e Ins t rument The St at us Byte Regis t er can be read u si ng either the *STB? common c o m m a n d o r t h e G P I B s e r i a l p o l l c o m m a n d . B o t h c o m m a n d s r e t u r n t h e deci mal- w eigh ted sum of all set bits in the regis t er .
3-20 Programmin g Mo nitorin g th e Inst rument Sta ndard Ev ent S tatus re gister T h e S t a n d a r d E v e n t S t a t u s R e g i s t e r m o n i t o r s t h e f o l l o w i n g i n s t r u m e n.
3-21 Program ming Monit oring th e Ins t rument Enabl ing regist er bits w it h masks Se ve ral masks are avai lable which you can u s e to enable or disab le individua l bits in each register .
3-22 Programmin g Mo nitorin g th e Inst rument Queues Ther e are two queues in t he instrument : the outpu t queue and the e r r o r q u e u e . T h e v a l u e s i n t h e o u t p u t q u e u e a n d t h e e r r o r q u e u e c a n be queried .
3-23 Program ming Revi ewing SC PI S yntax R ules Rev iewi ng SC PI S yn tax Ru le s S C P I c o m m a n d a r e g r o u p e d i n s u b s y s t e m s I n a c c o r d a n c e w i t h I E E E 4 8 8 . 2 , t h e i n s t r u m e n t ’ s c o m m a n d s a r e grou ped in t o “s u bs ystems.
3-24 Programmin g Rev iewing SCP I Syn tax Rul es OUT PUT 720; ” :MEAS:SC AL:PO W? MAX ” Programs writte n in long f orm are easily rea d a nd are almost self- do c- umenti ng .
3-25 Program ming Revi ewing SC PI S yntax R ules Combine commands from d ifferent subsyste ms Y ou can send command s and pro g ram queries from differ ent sub- s y s t e m s o n t h e s a m e l i n e . S i m p l y p r e c e d e t h e n e w s u b s y s t e m b y a sem icolo n followed by a c olo n.
3-26 Programmin g Rev iewing SCP I Syn tax Rul es is take n care of autom atical ly when y ou inc lude the enti re instructi on i n a s t r i n g . S e v e r a l r e p r e s e n t a t i o n s o f a n u m b e r a r e p o s s i b l e . F o r examp le, t he followin g numb ers are a ll e qual: 28 0.
3-27 Program ming Revi ewing SC PI S yntax R ules Program message terminator The s tring o f inst r ucti ons sent to the ins trument are ex ecuted after the instruction terminator is receiv ed.
3-28 Programmin g Ex am pl e P r ogr a ms Example P rograms The follo wing examp le pro grams are p r ov ided in this secti on: Exam ple 1. Me asur e a DFB laser 3- 30 Exam ple 2. Me asure WDM channe ls 3- 32 Exam ple 3. Me asure WDM channe l d ri f t 3- 3 4 Exam ple 4.
3-29 Program ming Exa mple Pr ogra ms The E rr_mngmt subr outine is used to actu all y read the value of the ev ent status register . Examp les 1 through 5 cal l this subr outine.
3-30 Programmin g Ex am pl e P r ogr a ms Exam ple 1. M ea sure a DF B la se r T h i s p r o g r a m m e a s u r e s t h e p o w e r a n d w a v e l e n g t h o f a D F B l a s e r . I t f i r s t s e t s t h e A g i l e n t 8 6 1 2 0 C i n t h e s i n g l e - a c q u i s i t i o n m e a s u r e m e n t m o d e .
3-31 Program ming Exa mple Pr ogra ms Identity :DE F FNIde nti ty$; COM /Instr ume nt/ @MwmV DIM Ide ntity$[ 50] Ide n tity $= "" OUTPUT @Mwm;"*RST" OUTPUT @Mwm;"*OPC?" E.
3-32 Programmin g Ex am pl e P r ogr a ms Exa mple 2. Measur e WDM channels T h i s p r o g r a m m e a s u r e s t h e m u l t i p l e l a s e r l i n e s o f a W D M s y s t e m . I t m e a s u r e s b o t h t h e p o w e r a n d w a v e l e n g t h s o f e a c h l i n e .
3-33 Program ming Exa mple Pr ogra ms PRINT Err _msg $ UNTIL NOT BIT(Cme,2) AND NOT BIT( Cme, 4) AND NOT BIT(Cme,5) AND Err$," + 0") Suben d:S UBEND Set_ese:S UB Set_e se COM /Instr ume nt/ .
3-34 Programmin g Ex am pl e P r ogr a ms Exampl e 3. Measure WDM channel drift This program measure s the dri ft of ch annel s in a WDM system . It m e a s u r e s d r i f t i n b o t h p o w e r a n d w a v e l e n g t h o f e a c h l i n e .
3-35 Program ming Exa mple Pr ogra ms ! Query reference w avelengths an d powers OUT PUT @Mw m;" :CALC3 :DATA ? WA V" EN TER @Mwm US I NG "# ,K" ;Curre nt _ref _wl(*) OUT PUT @Mw m.
3-36 Programmin g Ex am pl e P r ogr a ms Subend :S UBEND Set_ese:S UB Set_e se COM /Instr ume nt/ @Mwm OUTPUT @Mwm ;" *ES E "; IVAL( " 0011 0100",2) SUBEN D Identity :DE F FNIde n.
3-37 Program ming Exa mple Pr ogra ms Exam ple 4. Me asure WD M chan ne l sep aratio n T h i s p r o g r a m m e a s u r e s t h e l i n e s e p a r a t i o n s o n a W D M s y s t e m . I t m e a - sures separat ion (delta) betw een po wer and wa ve l e ngth of e a ch line usin g comm and s fr om t he CALC ulat e3 su bsys te m.
3-38 Programmin g Ex am pl e P r ogr a ms " ;(De lta _wl (I )+( (NO T I=1 )* De lta_ wl( 1 )))/1 .0 E- 9;" nm . A bso lute l in e le vel i s : ";Del ta_pwr (I )+(NOT I= 1) *Delt a_p w r(1); " dBm" PRINT USING "17A,2D,6A, M4D.
3-39 Program ming Exa mple Pr ogra ms Exam ple 5. M ea sure sign al- to - no ise r at io of eac h WDM channel This program measure s signa l- to- no i se ra tios on a WDM system. It m e a s u r e s t h e r a t i o f o r e a c h l i n e u s i n g c o m m a n d s f r o m t h e C A L C u l a t e 3 subsy stem.
3-40 Programmin g Ex am pl e P r ogr a ms FOR I=1 T O Nb_pt PRINT USI NG "7A,2D, 17A,M4D. 3D,25A,S2D.2D, 2 2A,2D.2D,3A";" Line : ";I ;" wave le ngth is : ";Cur rent_w l( I )/ 1.
3-41 Program ming Exa mple Pr ogra ms Exa mple 6. Incre ase a s ou rce’ s w av elength accur acy T h i s e x a m p l e p r o g r a m u s e s t h e A g i l e n t 8 6 1 2 0 C t o i n c r e a s e t h e a b s o - lut e w avelen gth accu rac y of A gile nt 8 16 7 A , 8168 B, a nd 8 168C T un ab le Lase r Source s.
3-42 Programmin g Ex am pl e P r ogr a ms COM Current_ wl,Diff_ wl.Ta rget_w l,Previou s_diff,Diff_ diff Current_w l =0 Di ff_wl =0 Target_ wl=0 Previous_diff=O Diff_di ff=0 AS SIGN @Tl s TO 72 4 ASSI.
3-43 Program ming List s of Command s Lists of Comm ands Table 3- 10. Progr amming Commands (1 of 5) Comma nd Des cription Cod e Codes : S ind icates a st andar d SCPI co mmand. I indi cates an inst rumen t spe cific comm and. Common C omm ands *CLS Clea rs all even t regi st ers and t h e e rror qu eue .
3-44 Programmin g Li st s of Co mm a nd s CALCu late 1 (C ALC1) Sub system :C ALCu lat e1:DA T A? Quer ie s th e unc orrect ed frequ ency -spect rum data of the input s ignal. S :CALC ulate1:TR ANsform:F REQue ncy:POINts? Sets a nd que ries the n umber of poin ts in th e data s et.
3-45 Program ming List s of Command s :CALC ulate3:D EL T a: REFeren ce[:WAV elength ] Se lects the signal to be use d a s the refe rence f or the D EL T a ca lcu lat ion s. I :C ALCu lat e3: D EL T a:REF erenc e:WNUMber Selec ts the signa l to be used as the ref eren ce for the D EL T a ca lcu lat ion s.
3-46 Programmin g Li st s of Co mm a nd s :C ALCu lat e3: FPERot : PO W er: [WA V ele ngth]? Quer ie s th e powe r wave le ngth of th e sele cted mod es. I :C ALCu lat e3: FPER ot :POW er:FR EQuency? Quer ies t he po wer f requen cy of the s elec ted mode s.
3-47 Program ming List s of Command s :SE NSe:CO RRectio n:E LEV atio n Sets the el evatio n v alue u sed by th e ins t ru m en t to com pen sa te for ai r d isp ersio n. I :SE NSe:CO RRectio n:O FFSe t:MAG Nitud e Sets the po wer offs et va lue used by the instrum ent.
3-48 Programmin g Li st s of Co mm a nd s Table 3-11. K eys Versus Comm and s (1 of 2) Key Equ ival ent C omm an d ∆ PWR :CALCu late 3:DEL T a:PO Wer[:S T A T e ] ∆ WL :CA LCu la te 3:DE L T a:WAV.
3-49 Program ming List s of Command s Peak WL See NEXT PK, NEXT WL , PEAK, PREV PK , an d PRE V WL PK E XC :C ALC ulate2 :P EXCur sion PK THLD :CALCu late2:PTHReshol d POWER :UNIT:POWe r Pr eset : S Y.
3-50 Programmin g Li st s of Co mm a nd s.
4 Co mmon Comma nds 4- 3 Me as u rem en t In st ru c tio n s 4- 1 5 CA LC ul at e1 Su b sy s te m 4 - 2 5 CA LC ul at e2 Su b sy s te m 4 - 3 1 CA LC ul at e3 Su b sy s te m 4 - 4 4 CONFigu re Me asur.
4-2 Progra mm ing Co mma nds Programmi ng Commands Progr amming Comm ands T h i s c h a p t e r i s t h e r e f e r e n c e f o r a l l A g i l e n t 8 6 1 2 0 C p r o g r a m m i n g c o m - mands. Co mmand s are organized by subsy stem. Table 4-1 2.
4- 3 Programming Co mmands Common Comma nds Comm on Comm ands Com mo n co mm an ds a re d ef i ned by t he I EEE 48 8. 2 s t an dard . Th ey contr ol generi c devic e f unct ions which could be common among man y diff erent types of instruments.
4-4 Progra mm ing Co mma nds Common Commands <inte ger> i s a m a s k f r o m 0 t o 2 5 5 . De scri pti on T h e e v e n t s t a t u s e n a b l e r e g i s t e r c o n t a i n s a m a s k v a l u e f o r t h e b i t s t o b e e n a b l e d i n t h e e v e n t s t a t u s r e g i s t e r .
4- 5 Programming Co mmands Common Comma nds *ESR? T h e * E S R ( e v e n t s t a t u s r e g i s t e r ) q u e r y r e t u r n s t h e v a l u e o f t h e e v e n t status re gister .
4-6 Progra mm ing Co mma nds Common Commands *IDN? T h e * I D N ? ( i d e n t i f i c a t i o n n u m b e r ) q u e r y r e t u r n s a s t r i n g v a l u e w h i c h iden tifies the ins trument type and f irmware versio n . Syntax *IDN? De scri pti on A n * I D N ? q u e r y m u s t b e t h e l a s t q u e r y i n a p r o g r a m m e s s a g e .
4- 7 Programming Co mmands Common Comma nds *OPC The *OPC (oper ation comp lete) command sets t he operation comp lete b i t i n t h e e v e n t s t a t u s r e g i s t e r w h e n a l l p e n d i n g d e v i c e o p e r a t i o n s have f in ished.
4-8 Progra mm ing Co mma nds Common Commands *RST T h e * R S T ( r e s e t ) c o m m a n d r e t u r n s t h e A g i l e n t 8 6 1 2 0 C t o a k n o w n conditio n . Syntax *RST De scri pti on For a li st in g o f res e t con di ti on s, r efer t o t he foll owing t a b le.
4- 9 Programming Co mmands Common Comma nds *SAV This command sav es an i nstrument st ate. Syntax *SA V <int ege r> <inte ger> r a n g e i s 1 t o 4 .
4-10 Progra mm ing Co mma nds Common Commands o f f s e t , s i g n a l -t o -n o i s e a u t o m o d e o n / o f f , w a v e l e n g t h l i m i t o n / o f f , w a v e - leng th limit star t, wav elength limit s top, and sign al- to- noise av erag e count.
4-11 Programming Co mmands Common Comma nds Query Re sponse <inte ger> fro m 0 t o 6 3 o r f rom 128 t o 19 1. Ex ample OUT PUT 720; ” *SRE 32 ” In this examp le, the comman d enabl es ESB (ev ent summar y) bit 5 in t h e s t a t u s b y t e r e g i s t e r t o g e n e r a t e a s e r v i c e r e q u e s t .
4-12 Progra mm ing Co mma nds Common Commands *STB? T h e * S T B ( s t a t u s b y t e ) q u e r y r e t u r n s t h e c u r r e n t v a l u e o f t h e i n s t r u - ment ’s status byte .
4-13 Programming Co mmands Common Comma nds *TRG The *TRG (trigger) co mmand is iden tical to the group execute trigge r ( G E T ) m e s s a g e o r R U N c o m m a n d . Syntax *TRG De scri pti on This co mmand acquires data accordin g to t he current settings.
4-14 Progra mm ing Co mma nds Common Commands *WAI The *W AI command p re ve nts t he instrum ent fro m ex ecuting any fur- ther commands unti l the current command has f inishe d ex e cuting . Syntax *W AI De scri pti on A l l p e n d i n g o p e r a t i o n s a r e c o m p l e t e d d u r i n g t h e w a i t p e r i o d .
4-15 Programming Co mmands Measur ement Inst ructions Measurement Ins truct i ons Use the measure ment instructions documented in this section t o p er - f o r m m e a s u r e m e n t s a n d r e t u r n t h e d e s i r e d r e s u l t s t o t h e c o m p u t e r .
4-16 Progra mm ing Co mma nds Meas ureme n t I nstruct ions The commands in this subsystem ha ve the fo l lo wi ng comm and hier ar- ch y: { : M E A S u r e | : R E A D [ ? ] | : F E T C h [ ? ] | : C.
4-17 Programming Co mmands Measur ement Inst ructions MEAS u re{ :A RRay | [:SC ALar ]} :PO Wer? Retu r ns ampli tude values. Syntax :POWer? [<expected _value>[,<reso lution>]] De script ion W h e n u s e d w i t h a : S C A L a r c o m m a n d , a s i n g l e v a l u e i s r e t u r n e d .
4-18 Progra mm ing Co mma nds Meas ureme n t I nstruct ions Examples :CONF:ARR:POW :FETC:ARR:POW? :READ:ARR:POW? :MEAS:ARR:POW? :CONF :SCA L:POW -1 0 dBm :FETC:S CAL:PO W? MA X :READ: SCAL:P OW? MI N .
4-19 Programming Co mmands Measur ement Inst ructions MEAS u re{ :ARRay | [:S CALa r]} :P OWer:F REQu en- cy? Retu r ns fr eq uency values. Syntax :POWer:F REQuency? [<exp ected_value>[,<r esolution>]] De script ion W h e n u s e d w i t h a : S C A L a r c o m m a n d , a s i n g l e v a l u e i s r e t u r n e d .
4-20 Progra mm ing Co mma nds Meas ureme n t I nstruct ions DE Faul t The cur ren t mar ker po si ti on <reso lutio n> Co nstan ts MA Ximu m 0.01 reso luti on ( fas t up date ) MINi mum 0.
4-21 Programming Co mmands Measur ement Inst ructions MEAS u re{ :A RRay | [:SC ALar ]} :PO Wer:W AVe- length? Retu r ns wav el ength v alu e s. Syntax :POWer:W AVelengt h? [<expected_value>[,< resolution>]] De script ion W h e n u s e d w i t h a : S C A L a r c o m m a n d , a s i n g l e v a l u e i s r e t u r n e d .
4-22 Progra mm ing Co mma nds Meas ureme n t I nstruct ions <reso lutio n> Co nstan ts MA Ximu m 0.01 reso luti on ( fas t up date ) MINi mum 0.001 resol ution (n orm al) DEF au lt C u rr ent re.
4-23 Programming Co mmands Measur ement Inst ructions MEAS u re{ :A RRay | [:SC ALar ]} :PO Wer:W NUM ber ? Ret ur ns a w a ve n umbe r va lu e. Syntax :POWer:W NUMber? [<expected _value>[,<resolution >]] De script ion W h e n u s e d w i t h a : S C A L a r c o m m a n d , a s i n g l e v a l u e i s r e t u r n e d .
4-24 Progra mm ing Co mma nds Meas ureme n t I nstruct ions <reso lutio n> Co nstan ts MA Ximu m 0.01 reso luti on ( fas t up date ) MINi mum 0.001 resol ution (n orm al) DEF au lt C u rr ent re.
4-25 Programming Co mmands CALC ulat e1 Sub syst em CALCulate1 Subsystem Us e the CAL Culate1 comman ds t o query uncorr ec ted f r e q u e n c y -s p e c - trum data. In NORM AL m e a s u r e m e n t u p d a t e m o d e , 1 5 , 0 4 7 v a l u e s a r e retu rn e d.
4-26 Progra mm ing Co mma nds CALCulate1 Subsystem DATA? Queri es uncorrecte d f r e q u e n c y -s p e c t r u m d a t a o f t h e i n p u t l a s e r l i n e .
4-27 Programming Co mmands CALC ulat e1 Sub syst em When NO RM AL m e a s u r e m e n t m o d e i s s e l e c t e d , t h e u n c o r r e c t e d f r e - q u e n c y d o m a i n d a t a c o n s i s t s o f 6 4 K v a l u e s .
4-28 Progra mm ing Co mma nds CALCulate1 Subsystem T h i s q u e r y w i l l g e n e r a t e a “ S e t t i n g s c o n f l i c t ” e r r o r i f t h e i n s t r u m e n t i s i n t h e s i g n a l -t o - n o i s e a v e r a g e a p p l i c a t i o n .
4-29 Programming Co mmands CALC ulat e1 Sub syst em TRANs form:FRE Quency:POI Nts S e t s t h e s i z e o f t h e f a s t F o u r i e r t r a n s f o r m ( F F T ) p e r f o r m e d b y t h e instrument. Syntax :CALC ula te1:T RAN sfor m:FREQ uen cy: POINts {?| {<in tege r> | M INi mum | M AX imum}} < int eger > S e t s F F T s i z e .
4-30 Progra mm ing Co mma nds CALCulate1 Subsystem Query R esponse F or n orm al upda te: +15, 047 For f a s t u p d a t e: +7, 525.
4-31 Programming Co mmands CALC ulat e2 Sub syst em CALCulate2 Subsystem Us e the CAL Culate2 comman ds t o query correcte d v alue s fre que nc y- spec tr um data.
4-32 Progra mm ing Co mma nds CALCulate2 Subsystem DATA? Qu eri e s t h e co r r ect e d p ea k da ta of t h e inp ut la s er l in e . Syntax :CALC ula te2:DA TA ? {F REQ uency | PO Wer | WA Vel ength | WN U Mber} Co ns tant Descr ipti on FREQ uen cy Qu eries t he arra y of l aser-li ne fre quen cies aft er the peak se arch i s com pleted.
4-33 Programming Co mmands CALC ulat e2 Sub syst em W h e n t h e r e i s n o i n p u t s i g n a l , t h e P O W e r q u e r y r e t u r n s – 2 0 0 d B m ; t h e W A V e l e n g t h q u e r y r e t u r n s 1 0 0 n m ( 1 .
4-34 Progra mm ing Co mma nds CALCulate2 Subsystem PO INts? Que ries t he number of point s in the data set. Syntax :CALC ula te2:P OINts? Attribute Su mmary Preset State: unaffe cted *RST State: u na.
4-35 Programming Co mmands CALC ulat e2 Sub syst em DEFa ult 10 dB Attribute Su mmary Non- se quentia l command Preset State: 10 dB * R S T S t a t e : 1 0 d B S C P I C o m p l i a n c e : i n s t r .
4-36 Progra mm ing Co mma nds CALCulate2 Subsystem Turning pow er - wei g hted a v erage mode on wh il e makin g del ta, Fabr y- P erot , or sign al- to- noise m easu rements re sults in a “–221 Setti ngs con- fl i ct ” e rr o r .
4-37 Programming Co mmands CALC ulat e2 Sub syst em WLIMit[:STA Te] T urns wav e leng t h limiting on a nd off. Syntax :CAL Cula te2:W LIMi t[:S TATe ]{?| { ON | OF F | 1 | 0}} Attribute Su mmary Non-.
4-38 Progra mm ing Co mma nds CALCulate2 Subsystem WLIMit:STARt :FREQuency S e t s t h e s t a r t f r e q u e n c y f o r t h e w a v e l e n g t h l i m i t r a n g e .
4-39 Programming Co mmands CALC ulat e2 Sub syst em WLIMit:STARt[:WAV elength] Syntax C ALCulate2:WLIMit:S TARt[:WAV elength] {?|{<r eal> | MIN imum | MA Ximum }} < rea l > i s a w a v e n.
4-40 Progra mm ing Co mma nds CALCulate2 Subsystem WLIMit:STARt :WNUMber S e t s t h e s t a r t i n g w a v e n u m b e r f o r t h e w a v e l e n g t h l i m i t r a n g e .
4-41 Programming Co mmands CALC ulat e2 Sub syst em WLIMit:STOP :FREQuency Sets the stopping frequency fo r the wav el e ngth l i mit range. Syntax :CALCulate2:WLIMit:STOP:FREQ uency {?|{<real> .
4-42 Progra mm ing Co mma nds CALCulate2 Subsystem WLIMit:S TOP[:WAVelen gth] S e t s t h e s t o p p i n g w a v e l e n g t h f o r t h e w a v e l e n g t h l i m i t r a n g e .
4-43 Programming Co mmands CALC ulat e2 Sub syst em WLIMit:STOP :WNUMber S e t s t h e s t o p p i n g w a v e n u m b e r f o r t h e w a v e l e n g t h l i m i t r a n g e .
4-44 Progra mm ing Co mma nds CALCulate3 Subsystem CALCulate3 Subsystem U s e t h e C A L C u l a t e 3 c o m m a n d s t o p e r f o r m d e l t a , d r i f t , s i g n a l -t o -n o i s e , and Fab r y- Per ot measurem ents.
4-45 Programming Co mmands CALC ulat e3 Sub syst em :F PE R ot [:STATE ] :FWH M [:WA Veleng th]? :FREQuency? :WNUMb er? :MEAN [:WA Veleng th]? :FREQuency? :WNUMb er? :MODE [:WA Veleng th]? :FREQuency?.
4-46 Progra mm ing Co mma nds CALCulate3 Subsystem AS NR :CLE ar C l e a r s t h e n u m b e r o f m e a s u r e m e n t s u s e d i n t h e a v e r a g e s i g n a l -t o - noise calculation.
4-47 Programming Co mmands CALC ulat e3 Sub syst em ASNR: C O UNt S e t s t h e n u m b e r o f m e a s u r e m e n t s t o b e u s e d f o r t h e a v e r a g e s i g n a l - t o - noise calculation.
4-48 Progra mm ing Co mma nds CALCulate3 Subsystem AS NR [:S TAT e] T ur ns t h e avera ge s igna l- t o - noi s e ra ti o o n o r of f . Syntax :CA LCu late 3: ASNR[ :S TAT e] {? |{ ON | OFF | 1 | 0 .
4-49 Programming Co mmands CALC ulat e3 Sub syst em DATA? Que ries t he data resulti ng from delta, drift, and signal - to- noise mea- suremen ts. Syntax :CALC ula te3:DA TA ? {P OWer | FREQ u ency | WA Vele ngth | WN UM ber} Arg ume nt Descr iption POWer Q uer ie s t he a rr ay of la s er-l in e pow ers af ter the c alc ulat ion i s comp lete d.
4-50 Progra mm ing Co mma nds CALCulate3 Subsystem DELTa:POWer [:STATe] T ur ns t h e de lt a- p ower m ea sur e me nt m od e o n a nd o f f. Syntax :CALC ula te3:DEL Ta:POW er[:STA Te]{? | {O N | O F.
4-51 Programming Co mmands CALC ulat e3 Sub syst em DELT a: RE Fer enc e:FREQ uency Selec ts t he r ef ere nce la ser li ne for DELTa c alcu latio ns. Syntax :CALC ula te3:DEL Ta:REFe re nce:FR EQuenc.
4-52 Progra mm ing Co mma nds CALCulate3 Subsystem DELTa :REFer ence[:W AVel ength] Selec ts t he r ef ere nce laser li ne for D EL Ta c alcu latio ns.
4-53 Programming Co mmands CALC ulat e3 Sub syst em DELT a:REFe rence: WNUM ber Selec ts t he r efere nce la ser lin e for delt a c alcul ati ons. Syntax :CALC ula te3:DEL Ta:REF er ence:WN UM ber{?| .
4-54 Progra mm ing Co mma nds CALCulate3 Subsystem DELTa :WAV eleng th[: STATe] T ur ns t h e de lt a w avele ng th m ea su re me nt m od e o n an d o f f .
4-55 Programming Co mmands CALC ulat e3 Sub syst em DELTa :WPOWer [:STATe] Turns the del ta wav elength and po wer measurem ent mode on and off. Syntax :CA LCul ate3 :DELTa: WPOWe r[: STATe] {? | { ON.
4-56 Progra mm ing Co mma nds CALCulate3 Subsystem DR IFt:DI FFerence[: STATe] S e t s t h e d r i f t c a l c u l a t i o n t o s u b t r a c t t h e m i n i m u m v a l u e s m e a s u r e d f r o m t h e m a x i m u m v a l u e s m e a s u r e d .
4-57 Programming Co mmands CALC ulat e3 Sub syst em DR IFt:MAX imum[:STA Te] S e t s t h e d r i f t c a l c u l a t i o n t o r e t u r n t h e m a x i m u m p o w e r a n d f r e q u e n c y valu es me asu re d.
4-58 Progra mm ing Co mma nds CALCulate3 Subsystem DR IFt:MI Nimum[:STA Te] S e t s t h e d r i f t c a l c u l a t i o n t o r e t u r n t h e m i n i m u m p o w e r a n d f r e q u e n c y valu es me asu re d.
4-59 Programming Co mmands CALC ulat e3 Sub syst em DR IFt:PRE S et Turns off all th e d ri f t states f or DIFFe rence, MAXimum, MINimum, and REF eren ce.
4-60 Progra mm ing Co mma nds CALCulate3 Subsystem DR IFt:REFerenc e[:STATe] T u r n s o n a n d o f f t h e d r i f t r e f e r e n c e s t a t e . Syntax :CALCulate3:DRIFt:REFeren ce[:STATe]{?| {ON .
4-61 Programming Co mmands CALC ulat e3 Sub syst em DR IFt[:S TATe] Turns on and off t he drift m easu rem ent calcu lati on. Syntax :CALC ula te3:DRIFt [:STA Te]{? | {O N | O FF | 1 | 0} } Attribute .
4-62 Progra mm ing Co mma nds CALCulate3 Subsystem FP ERo t[:ST ATE] Turns on and off the Fabry- P erot measu rem ent m o de. Syntax :CAL Cul ate3 :F PERot[ :STATE ] { ? | { ON | O FF | 1 | 0}} Attrib.
4-63 Programming Co mmands CALC ulat e3 Sub syst em Attribute Su mmary Preset State: not affecte d *R ST S t a te: n o t a ff e ct ed S C P I C o m p l i a n c e : i n s t r u m e n t s p e c i f i c Query only FPE R ot: MEA N? Q u e r i e s t h e m e a n d a t a o f t h e s e l e c t e d m o d e s .
4-64 Progra mm ing Co mma nds CALCulate3 Subsystem FP ERo t:MO DE:SPA Cing ? Que ries t he mode spacin g data of the selec ted modes. Syntax :C ALCula te3:FP ERot:MODE: SPA Cing{[:W AVelen gth] | :FREQ uenc y | :W NUMb er}? Arg ument Des crip tion W AV ele ng th R etu rns th e mo de spac in g wa vele ngt h of th e s elec ted mo des.
4-65 Programming Co mmands CALC ulat e3 Sub syst em FP ERo t:PEAK ? Que ries t he peak data of the sel ected modes. Syntax :C ALCula te3:FP ERot:PEAK {[:WA Veleng th ] | :FR EQuenc y | : WNUMb er | :P OWer{[:D BM ]|:WA TTs}} ? Arg ume nt Descr iptio n W AV ele ng th R etu rns th e peak wav e lengt h o f th e s elec ted mo des.
4-66 Progra mm ing Co mma nds CALCulate3 Subsystem FPE R ot: POW er ? Que ries t he t otal po wer data of the sel ected mod es . Syntax :C ALCula te3:FP ERot:POW er{[:DB M]|: WATTs}} ? Arg ument Des crip tion DB M R etu rns th e to tal p ow er in d Bm .
4-67 Programming Co mmands CALC ulat e3 Sub syst em FPE R ot: SIG Ma? Qu eri e s t h e si gm a d at a of th e s el ect e d m od es . Syntax :C ALCula te3:FP ERot:SIGM a{[:WA Vel ength] | :FREQ uency | :WNUMb er}? Arg ume nt Des crip tion W AV ele ng th R etu rns th e s igma wa vele ngt h o f th e s elec ted mo des.
4-68 Progra mm ing Co mma nds CALCulate3 Subsystem PO INts? Que ries t he number of point s in the data set. Syntax :CALC ula te3:P OINts? Attribute Su mmary Preset State: unaffe cted by RS T State: u.
4-69 Programming Co mmands CALC ulat e3 Sub syst em SNR:AUTO Se lect s t he ref erence freq uency valu e f or mea suring nois e in t he sig- nal- t o- nois e calc ula tion . Syntax :CA LCu late3 :SNR:AUT O{? | { ON | OFF | 1 | 0} } Co ns tant Descr ipti on ON Selec ts i ntern ally gene rated re ferenc e frequ ency .
4-70 Progra mm ing Co mma nds CALCulate3 Subsystem SNR:REFeren ce:FREQuency Enter s a frequ ency that can be used fo r t he noise measurem en t ref er- ence in signa l - to- noise calc ulat ions .
4-71 Programming Co mmands CALC ulat e3 Sub syst em SNR:REFeren c e[:WAVeleng th] S e t s t h e w a v e l e n g t h u s e d f o r t h e n o i s e m e a s u r e m e n t r e f e r e n c e i n t h e si gnal- to- noise ca lcu lation.
4-72 Progra mm ing Co mma nds CALCulate3 Subsystem SNR:REFeren ce:WNUMber Se ts the wa ve numbe r used f or the noise m easu rement ref erence in the signal- to- n oise calculation.
4-73 Programming Co mmands CALC ulat e3 Sub syst em SNR[:STATe] Turns the signal- t o- noi se cal culat ion on and off. Syntax :CA LCul ate3 :SNR[:ST ATe] {? | {ON | OFF | 1 | 0 }} Attribute Su mmary .
4-74 Progra mm ing Co mma nds CON Fig ure Measu rement In struc t i on CONFigure Measurement Instruction F or informatio n on the CON Figure measureme nt instr uction, refer t o “Mea surement Instr uct ions” on page 4 - 15 .
4-75 Programming Co mmands DISP lay Subsy stem DISPlay Subsy stem The commands in this subsystem ha ve the fo l lo wi ng comm and hier ar- ch y: :D IS Pl ay :M AR K er : :MAXimum :LEFT :NEXT :PREVious.
4-76 Progra mm ing Co mma nds DISPl ay Subsy stem MARKer: MAXimum S e t s t h e m a r k e r t o t h e l a s e r l i n e t h a t h a s t h e m a x i m u m p o w e r .
4-77 Programming Co mmands DISP lay Subsy stem MARKer:MAXimum:NEXT Mo ves the marke r to the lase r line with t he next low er po wer le ve l. Syntax :DISPlay :MARKe r:MAX imum:N EXT Attribute Su mmar.
4-78 Progra mm ing Co mma nds DISPl ay Subsy stem MARKer: MAXimum:RIGHt Mo ves the mark e r rig ht to the next laser line . Syntax :DISPlay :MARKe r:MAXi mum:RIGHt Attribute Su mmary Preset S t a t e .
4-79 Programming Co mmands FETCh Me asuremen t Inst ructio n FETCh M easurement Instruction F o r i n f o r m a t i o n o n t h e F E T C h m e a s u r e m e n t i n s t r u c t i o n , refe r to “ M ea- su re me nt I ns tr uc ti ons ” o n pa g e 4 - 1 5 .
4-80 Progra mm ing Co mma nds HCO Py S ubs ys tem HCO Py Subsy st em U s e t h e c o m m a n d i n t h i s s u b s y s t e m t o p r i n t t h e d i s p l a y e d m e a s u r e - m e n t r e s u l t s t o a p r i n t e r .
4-81 Programming Co mmands MEASur e Meas urement I nstruc tion MEASure Measurement I nstruct i on F or informatio n on the MEAS ure me asurement instr uction, refe r t o “Mea surement Instruct ions” on page 4- 15 .
4-82 Progra mm ing Co mma nds RE AD Me as u rem en t In st ruc ti on R E A D M e a s u r e m e n t I n s t r u c t i o n F or information on the READ measurement instru ction, refer to “Mea- su re me nt I ns tr uc ti ons ” o n pa g e 4 - 1 5 .
4-83 Programming Co mmands SENS e Subsystem SE NSe S ub syst em Us e the S E NSe c ommands to correct measur ement resul ts f or ele v at ion ab ov e sea lev el and to sele ct b etw een measur emen ts in ai r or vac uum. Y o u c a n a l s o e n t e r a n a m p l i t u d e o f f s e t .
4-84 Progra mm ing Co mma nds SEN Se Subsystem CORRection :DEVice Selec ts t he wavelen gth m ea sure men t a lg orith m. Syntax :SENSe:CORRection:[DEVice]{? | {NARRow | BROad}} Co ns tant Descr ipti on NA RR ow Se le ct s wa ve le ng th me as ur e ment s fo r na rr ow ba nd de vi ce s s uc h as D F B la ser s an d mo des of F P las e rs .
4-85 Programming Co mmands SENS e Subsystem COR Rec tion :ELEV ation S e t s t h e e l e v a t i o n v a l u e u s e d b y t h e i n s t r u m e n t t o c o m p e n s a t e f o r a i r disp ersi on. Syntax :S ENS e:C ORR ec ti on :EL EV at ion {?| {< inte ge r> | M INi mum | MAX imum }} <inte ger> is th e altitude i n m e ters.
4-86 Progra mm ing Co mma nds SEN Se Subsystem CORRection:MED ium S e t s t h e A g i l e n t 8 6 1 2 0 C t o r e t u r n w a v e l e n g t h r e a d i n g s i n a v a c u u m o r standar d air . Syntax :SEN Se:COR Rection:M E Dium{ ?| {AIR | VA Cuum }} Arg ument Descr iption AIR Se lect s w a vele ng th valu e s in s tan d ard air .
4-87 Programming Co mmands SENS e Subsystem CORRection:OFF Set[:MAGNitude] E n t e r s a n o f f s e t f o r a m p l i t u d e v a l u e s . Syntax :SEN Se:COR Rect ion:OFFSe t:MA GNitu de{?| {< real> | MI Nimu m | MAX imum}} <re al> is the logarithmic unit s in dB.
4-88 Progra mm ing Co mma nds SEN Se Subsystem DATA? Q u e r i e s t h e t i m e d o m a i n s a m p l e s o f t h e i n p u t l a s e r l i n e . Syntax :SEN Se:DATA ? Attribute Su mmary Preset State.
4-89 Programming Co mmands SENS e Subsystem Query R esponse The fol l o wing stri ng sho ws an examp le of t he first f e w m e asurem ents returne d by this quer y. +1. 513672 00 E+00 0,+ 1.5185 550 0E+000 ,+1.4 99 02300E +00 0,+1 .47949 20 0E+0 00, +1.
4-90 Progra mm ing Co mma nds STAT us Subsyst em STATus Subsystem Us e the command s i n this subsys tem to contr ol the Agilen t 8 612 0C’s status- repo rting s tructures. These structur es pro vide registers that you can us e to d et er mi n e if ce r t ai n event s h ave oc cu rr e d.
4-91 Programming Co mmands ST A T us Sub syst em {OPE Rati on | QUEStion a ble} :CON Ditio n? Queries the value of t he questio n able or operation condition registe r .
4-92 Progra mm ing Co mma nds STAT us Subsyst em {OPERati on | QUEStionable}:ENAB le S e t s t h e e n a b l e m a s k f o r t h e q u e s t i o n a b l e o r o p e r a t i o n e v e n t r e g i s t e r . Syntax :STATu s:{O PERat ion | QUESt iona ble}:ENA Ble{? | <va lue>} <inte ger> an i nt ege r fr om 0 to 65 535.
4-93 Programming Co mmands ST A T us Sub syst em {O PER a tio n | Q UE St io na ble }[ :EV EN t] Qu eri e s t h e co n te nt s o f t h e qu es t ion a ble o r op e rat ion eve nt re gi st er s.
4-94 Progra mm ing Co mma nds STAT us Subsyst em {OPERation | Q UEStionable}:NTRansition S e l e c t s b i t s i n t h e e v e n t r e g i s t e r w h i c h c a n b e s e t b y n e g a t i v e t r a n s i - t i o n s o f t h e c o r r e s p o n d i n g b i t s i n t h e c o n d i t i o n r e g i s t e r .
4-95 Programming Co mmands ST A T us Sub syst em {OPERation | Q UEStionable}:PTRansition S e l e c t s b i t s i n t h e e v e n t r e g i s t e r w h i c h c a n b e s e t b y p o s i t i v e t r a n s i - t i o n s o f t h e c o r r e s p o n d i n g b i t s i n t h e c o n d i t i o n r e g i s t e r .
4-96 Progra mm ing Co mma nds STAT us Subsyst em PR ESet P r e s e t s t h e e n a b l e r e g i s t e r s a n d t h e P T R a n s i t i o n a n d N T R a n s i t i o n f i l - ters.
4-97 Programming Co mmands SYS T em Subsy stem SYST em Subsystem The commands in this subsystem ha ve the fo l lo wi ng comm and hier ar- ch y: :SY STe m : ERRor? :H EL P :HEAD ers? :P R ESe t :V ER S.
4-98 Progra mm ing Co mma nds SYS Tem Subsy stem ERRor Que ries an erro r from the e rror queu e. Syntax :SYSTem:ERRor? Attribute Su mmary Preset State: none *RST State: none SCPI Compli anc e: stand ard Query Only De script ion T h e A g i l e n t 8 6 1 2 0 C h a s a 3 0 e n t r y e r r o r q u e u e .
4-99 Programming Co mmands SYS T em Subsy stem HE LP: HEA De r s? Q u e r i e s a l i s t i n g o f a l l t h e r e m o t e p r o g r a m m i n g c o m m a n d s a v a i l a b l e f or the A gil en t 8612 0C.
4-10 0 Progra mm ing Co mma nds SYS Tem Subsy stem PR ESet P e r f o r m s t h e e q u i v a l e n t o f p r e s s i n g t h e f r o n t -p a n e l PRESET k e y .
4- 101 Programming Co mmands SYS T em Subsy stem Meas urement spee d no rmal last s t at e Me asur ement b a ndwi dth na rro wband nar ro w ba nd Dr ift me as ur em en ts o ff o ff Fabry-Pe rot las er.
4-10 2 Progra mm ing Co mma nds SYS Tem Subsy stem VER Sio n Q u e r i e s t h e v e r s i o n o f S C P I t h a t t h e A g i l e n t 8 6 1 2 0 C c o m p l i e s w i t h .
4- 103 Programming Co mmands TRIG ger Subsy stem TRIGger Sub system The SCP I definition defines t he TRIGger subsystem t o in c lude ABORt, A R M , I N I T i a t e , a n d T R I G g e r c o m m a n d s . T h e A g i l e n t 8 6 1 2 0 C h a s n o AR M or TRI Gge r commands .
ABO Rt Hal ts t he current measuremen t sequence and plac es the inst rument i n the idle state. Syntax :ABO Rt Attribute Su mmary Preset State: not aff ected SCPI Compli anc e: stand ard Command Only.
4- 105 Programming Co mmands TRIG ger Subsy stem INI Tia te: CON Ti nu ou s Sel ects sing le or continuou s measure ment acquis ition. Syntax :INI Tiate:C ONT inuo us{? | {O N | O FF | 1 | 0}} Attribu.
4-10 6 Progra mm ing Co mma nds TR IGg e r Sub sy st em INIT iate [:IMMe diat e] Initia t es a new measurement sequence . Syntax :INI Tiate:I MMedia te Attribute Su mmary Non- se quentia l command Pre.
4- 107 Programming Co mmands UNIT Subsystem UNIT Subsystem T h e o n l y c o m m a n d p r o v i d e d i n t h i s s u b s y s t e m i s t h e P O W e r c o m m a n d a s s h o w n i n t h e f o l l o.
4-10 8 Progra mm ing Co mma nds UNIT Subsystem.
5 Te st 1. Absolu te W av elength Accuracy 5- 3 Tes t 2. Se ns it i v it y 5 - 4 T e s t 3 . P o l a r i z a t i o n D e p e n d e n c e 5 - 5 T e s t 4 .
5-2 Per fo rman ce Te sts Per for mance Tes t s Performance Tests The procedures in th is chapter test t he A gilen t 86120C’s per f ormance using the specif icatio ns listed in Chapter 6, “Specifications and Reg ul a- tory Inf ormation” a s t h e p e r f o r m a n c e s t a n d a r d .
5- 3 Performance T e sts T est 1. Ab solu te W avelengt h Accur acy Test 1. Absolute Wavelength A ccuracy De scri pti on W a v e l e n g t h a c c u r a c y i s v e r i f i e d u s i n g t r a c e a b.
5-4 Per fo rman ce Te sts Test 2. Sens itivit y Te st 2. Se n sit iv it y De scri pti on Sensitivit y is verified u sing the follo wing devi ces: • O pt ical power mete r • Op tical attenua to r • 13 10 nm and 1 55 0 n m las er s ( >0 d Bm out pu t po we r) CAUT ION Do not excee d +18 dB m sou rce pow er .
5- 5 Performance T e sts T est 3 . Polar izati on Depend ence Test 3. Polarizati on Dependence De scri pti on P olar izat ion Dep endenc e is ver ifi ed using the fol lo wing de vi ces: • 1 310 nm a.
5-6 Per fo rman ce Te sts Test 4 . Opti cal I npu t Ret urn L oss Test 4. O ptica l Input R eturn Loss De scri pti on I n p u t r e t u r n l o s s i s v e r i f i e d u s i n g t h e f o l l o w i n .
5- 7 Performance T e sts T e st 4. O pti cal I nput R eturn Lo ss and Re g ul at or y I n form at ion ” . Proced ur e O ption 02 2 instr ume nts (a ngled c ontacting c onnec tors) 1 T u r n t h e s o u r c e m o d u l e ’ s o u t p u t o f f .
5-8 Per fo rman ce Te sts Test 4 . Opti cal I npu t Ret urn L oss FC /APC pa t chc ord l os s The ef fect of hav i n g los s in t he FC/ A PC pa t chc ord 1 to 2 c o nnec tor pai r is to und er meas ur e th e re turn lo ss by twi ce th e FC / APC p atch c ord 1 to 2 los s.
5- 9 Performance T e sts T est 5. Amplit ude Ac curacy and Line arit y Test 5. Ampli tude Accuracy and Linear ity Equipment A m p l i t u d e l i n e a r i t y i s p e r f o r m e d u s i n g t h e f .
5-10 Per fo rman ce Te sts Test 5 . Am plit ude Acc uracy and L ineari ty com plet ely fille d in . 10 D i s c o n n e c t t h e f i b e r -o p t i c c a b l e f r o m t h e o p t i c a l p o w e r m e t e r a n d c o n n e c t i t t o t h e A g i l e n t 8 6 1 2 0 C ’ s OPTICAL I NPU T con nector .
5-11 Performance T e sts T est 5. Amplit ude Ac curacy and Line arit y Tabl e 5-21. Lin earity Data Va lues Desi red Powe r (dBm) Attenuator S etting Powe r Meter Read ing Ag ilen t 86 12 0C Power Rea.
.
6 Defini t ion of Te rms 6- 3 Speci fications—N ORMAL U pdate Mode 6- 5 Speci fications—F A ST Up date Mode 6- 8 Operating Sp ecifications 6- 11 Las er S afety I nfor ma ti on 6- 12 C o m p l i a .
6-2 Spe cif ic ati ons an d R egu la tory In for ma tion Spec ificatio ns a nd Regu latory Infor mati on Specifications and Reg ulatory Info rmat ion This chapter l ists specificatio n and characteristics of the instrument.
6- 3 Spe cif ic ati ons an d R egu la tory In for ma tion Definition of T erms Definition of Terms Wave length Range r efer s to th e allo wable w av elength ra nge of the o p tica l input sign al. Ab solu te ac cur acy indic ates th e m axi mum wa vele ngth er r or over t he al lowed envi ronm enta l co nditi ons.
6-4 Spe cif ic ati ons an d R egu la tory In for ma tion Def in it ion of Te rm s of on e lase r lin e. Po lariz ation D epe ndenc e indic ates t he maxi mum dis play ed power v ari ati on as the po lariz ation of the input si gnal i s var ied. Di splay R esol utio n ind ic ates the m inim um incr eme nta l ch ang e in d isplay ed power .
6- 5 Spe cif ic ati ons an d R egu la tory In for ma tion Spe cificatio ns — NO RMA L Update Mode Sp ec ific a tio n s— N OR MA L U p da te M od e Eac h lase r l ine i s as sumed t o hav e a line width (in c ludi ng modula tion sid e- bands) of less than 5 GHz.
6-6 Spe cif ic ati ons an d R egu la tory In for ma tion Spec ificat ions — NORM AL Upd ate Mo de Am plit ude Ca libr ati on ac cura c y at calib r atio n wav ele n gths ± 0 .5 dB (at 131 0 a nd 1550 n m ± 30 nm) Flat ne ss, ± 30 nm from any wavel ength 1270 -160 0 n m (ch ara cter isti c) ± 0.
6- 7 Spe cif ic ati ons an d R egu la tory In for ma tion Spe cificatio ns — NO RMA L Update Mode Inpu t Re turn Los s Wit h s t rai g ht co nta ct con n ec tor s 3 5 dB Wi th an gled co nta ct conne cto rs (Op tion 0 2 2) 50 d B Me asu r em en t Cycl e Time Nor mal u pdate mode (ch aract eris ti c) 1.
6-8 Spe cif ic ati ons an d R egu la tory In for ma tion Spec ificat ions — FAS T Update M ode Sp ec ific a tio n s— FA ST U pd a te Mo de Eac h lase r l ine i s as sumed t o hav e a line width (in c ludi ng modula tion sid e- bands) of less than 10 GHz.
6- 9 Spe cif ic ati ons an d R egu la tory In for ma tion S pe cif ic a t ion s — FA S T U p d a t e M o de Am plit ude Ca libr ati on ac cura c y at calib r atio n wav ele n gths ± 0.5 dB (at 131 0 and 155 0 n m ± 30 nm) Flat ne ss, ± 30 nm from any wavel ength 1270 -160 0 n m (ch ara cter isti c) ± 0.
6-10 Spe cif ic ati ons an d R egu la tory In for ma tion Spec ificat ions — FAS T Update M ode Inpu t Re turn Los s With fla t contac ting conne ctors 35 dB With angl ed contacti ng connec tors (Option 022) 50 dB Me asu r em en t Cycl e Time Fast update m ode (charac teristic) 0.
6-11 Spe cif ic ati ons an d R egu la tory In for ma tion Ope r at in g Sp e cif i ca tio n s Op er at in g S p ec if ica ti on s Op erat in g Spe c ifica ti ons Use indoor Power: 70 W m ax Vo l tag e.
6-12 Spe cif ic ati ons an d R egu la tory In for ma tion Laser Safety Informati on Laser S afety I nformati on The ligh t s our ces sp ecif ie d by this use r gu ide are cla ss ifie d acc or din g to IEC 6 0825-1 ( 2001). The ligh t sources comp ly wit h 21 CFR 1040.
6-13 Spe cif ic ati ons an d R egu la tory In for ma tion Compliance with Ca nadian EMC R equirements Co mpl ian ce w it h Can a d ian E M C Requir ements Th is ISM devi ce co mpli es wi th Can ad i an IC ES- 001 . Cet a ppareil ISM es t con forme à la no rme NMB- 001 du Cana da .
6-14 Spe cif ic ati ons an d R egu la tory In for ma tion Decl aratio n of Co nform ity Declar ation of Conformi ty.
6-15 Spe cif ic ati ons an d R egu la tory In for ma tion Prod uct O verview Produc t Overview Fro nt view of in st r ument Rear view of ins trument.
6-16 Spe cif ic ati ons an d R egu la tory In for ma tion Pro d uc t Ov er vie w.
7 In st ru m en t Pres et Condi tions 7- 2 Menu Maps 7- 4 Erro r Messages 7-11 Fron t-Pan el Fib er -Op tic Ad apt ers 7-17 Pow er Cords 7- 18 Agil en t T ech no log ies Se r vice Offi ces 7 -18 Refer.
7-2 Refe re nce Refe re nce Refere nce Instrumen t Preset C onditions Table 5-22. Instr ument Pr eset Conditions (1 of 2) Ite m S etti ngs afte r Prese t Key Pr e ssed Se ttings after Powe r Turn ed O.
7- 3 Refer ence Inst rument Pr eset C ondit i ons Dev ice ban dwid th nar rowb a nd las t st ate Dr ift me as ur em en ts o ff o ff Fabry-Pe rot las er meas urements off off De lt a meas ureme n ts: .
7-4 Refe re nce Menu Ma ps Men u Map s Th is s ectio n prov ides menu maps for t he Agil ent 86 120C s oftk eys . The ma ps sh ow which softke ys ar e disp layed after pressi ng a front-pa nel key; t hey sh ow the relat ion- shi p betwee n sof tkey s .
7- 5 Refer ence Menu M aps Appl ’ s Menu.
7-6 Refe re nce Menu Ma ps Dis play Av g W L Menu Ther e is no me nu assoc iate d w it h this k ey . Measur ement Cont Me n u Ther e is no me nu assoc iate d w it h this k ey .
7- 7 Refer ence Menu M aps Dis play List by WL Menu Del ta On Me nu.
7-8 Refe re nce Menu Ma ps Del ta Of f Me nu Dis play Peak WL and System Pres et Menus Measur ement Single Menu Ther e is no me nu assoc iate d w it h this k ey .
7- 9 Refer ence Menu M aps Sys tem Print Me nu.
7-10 Refe re nce Menu Ma ps Sys tem Setu p Me n u.
7-11 Refer ence Err or M ess a ge s Error M essag es In t hi s s e ct i o n , y o u ’ ll f ind all the error m essag es t hat the Agi lent 861 20C can d ispl ay on its sc re en. T able 5- 23 on page 7-1 1 lists a ll inst rum e nt- spec ific err ors .
7-12 Refe re nce Error M essages 17 ROM BYT E UNERAS ED 18 ROM WRIT E OPER ATI ON FAIL ED 19 ROM DE FEC TI VE 20 ROM DAT A INVA LI D 21 ROM VERS ION IN COMPA T IBLE 22 ROM PO LLING LIM ITED OUT 2 3 I .
7-13 Refer ence Err or M ess a ge s 42 PRINTOUT WAS ABORTED 43 NOT ALLOWED IN F ABRY PEROT 44 NOT ALLOWED IN S /N 45 UNKNOWN KEYP RE SS 46 NUM LINES < NUM REFS 47 NUM LINES > NUM REFS 48 NO RE FEREN CE SI GNAL 49 G A IN RANGING ERRO R 50 INCOMPA TIBL E HARDWA RE 51 UNKNO W N E RROR Tabl e 5-23.
7-14 Refe re nce Error M essages Tabl e 5 -24 . G ene ra l SCP I Erro r Mess ag es (1 of 3) Error Number D e scription +0 “ No er rors ” – 10 0 “ C om mand err or (unkn own co mmand) “ – 1.
7-15 Refer ence Err or M ess a ge s – 158 “ String d ata not allowed “ – 161 “ In va l id bl o c k da t a “ – 168 “ Block data n ot allowe d “ – 170 “ Expr ess i on er ro r “ .
7-16 Refe re nce Error M essages – 31 0 “ System error “ – 32 1 “ Out of mem ory ” – 35 0 “ T oo man y erro rs “ – 40 0 “ Query er ror “ – 41 0 “ Query INT ERRUPTED “ –.
7-17 Refer ence Fron t-Pa nel Fi ber-O ptic Adapt ers Front -Panel Fib er-Op tic Adapt ers Fro nt Pa nel Fibe r-Op tic Adapter Descript ion Agilent Part Number Di amo nd HMS -10 8100 0AI FC/P C a a. The F C/PC is the default fro nt-panel opti ca l connec tor.
7-18 Refe re nce Power Cords Power Co rds Agilent Technolo gies Service Offices Plu g Typ e Cable P art No. C ountry 250V 8120-1351 United Ki ngdom, Cyprus, Ni geri a, Zimba bwe, Singa pore 250 V 81 20- 136 9 Aus tra lia , New Z eala nd, Ch i na 250V 812 0-16 89 Eas t and West Euro pe, S a udi A rabia, S o.
7-19 Refer ence Agile nt T echnologie s Serv ice O f fic es Bef ore ret urning an i nstrum en t for servi ce, ca ll the Ag ilen t T echnol o g ies In strume nt Suppo rt Cen t er a t +1 ( 877) 447 7 27 8 , v isit th e T e st an d Me asu rem ent We b S ites by Cou ntry pa ge at http: // www .
.
Index Index - 1 ASNR , 48 Num er i cs 1 n m a nnotation , 27 , 30 A ABORt progra mming com mand , 1 0 4 ABOR T softke y , 39 ac power ca bl es , 6 adapters, f iber optic , 17 addin g parameter s , 25 addres s.
In de x-2 Ind e x *CLS , 21 , 3 CM – 1 sof tkey , 13 Cmd_op c subrou tine , 29 colon , 2 5 commands com binin g , 24 common , 23 meas uremen t in struc tion s , 23 no n seq u ent ial , 12, 2 9, 34, .
Index - 3 Index increa s e s o urce accura cy , 41 mea sure DFB lase r , 30 mea sur e SN R , 39 meas ure W DM ch an nel drif t , 34 meas ure W DM ch annel sepa rati on , 37 meas ure W DM ch annel s , .
In de x-4 Ind e x spe cif ic a tion s , 11 line wi d th , 2 List b y Po wer men u map , 6 mo de , 9 sof tke y , 6, 23 List by W L key , 6 men u map , 7 mo de , 9 sof tke y , 6, 23 LOCAL soft key , 3 l.
Index - 5 Index O Off key , 20 men u map , 8 On key , 20 men u map , 7 *OPC , 29, 3, 7 OPTICAL I N PUT co nnector , iii, vi, 14 output queue , 22 , 27 P packa ging for sh ipmen t , 13 PARALLEL PRINTER.
In de x-6 Ind e x return lo ss , 4 , 7, 10 returning data , 27 for service , 11 RF m odul ation , 35 RIG HT progr amming co mm and , 78 *RS T , 3, 2 9, 8 S S/N AUTO annotation , 25 S/N soft ke y , 28 .
Index - 7 Index unit s of me asu re , 12 UN IT S sof t key , 12 up- ar ro w sof tke y , 6 UPD A TE so ft key , 1 4 uppercase letters , 24 US ER so ft ke y , 2 8 US ER W L s oft k ey , 28 UW s oft ke y.
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Agile nt T e chno logi es Gm b H 200 4 Printed in Germ any August 2004 Second edition, A ugust 2004 8612 0-90 C 03 w ww .ag ilen t.com Ag ilen t T ech nolo gie s.
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