CWDM optical module yog ib hom kho qhov muag hluav taws xob siv cov CWDM Technology, uas yog siv los txuas cov khoom siv network uas twb muaj lawm thiab CWDM multiplexer / demultiplexer. Thaum siv nrog CWDM multiplexer / demultiplexer, CWDM optical module tuaj yeem ua kom muaj peev xwm sib txuas tau los ntawm kev xa ntau cov ntaub ntawv txuas nrog ib qho tib lub wavelengths (1270nm txog 1610nm) ntawm tib lub fiber ntau.
Nta
Los ntawm 1270nm txog 1610nm, 18 raws muaj
MQW DFB LD
Yeem pob 1x9 / GBIC / SFF / SFP
Muab khoom ib leeg + 3.3V lossis + 5V
Ua haujlwm kub: 0 ° C - 70 ° C (qib ua lag luam); 40 ℃ - 85 ℃ (qib muaj)
Raws li Telcordia (Bellcore) gr - 468 - tseem ceeb
Class1 cov khoom txheem, hauv kab nrog IEC60825 - 1 thiab IEC 60825 - 2 qhov yuav tsum tau ua
RoHS raws cov khoom lag luam
Thov
CATV
FTTH
1g thiab 2G fiber ntau channel
100m thiab Gigabit Ethernet
Synchronous kho qhov muag network SONET
Ruaj ntseg thiab tiv thaiv system
Hom CWDM optical modules siv
CWDM SFP
CWDM GBIC
CWDM X2
CWDM XFP
CWDM SFP +
Dab tsi yog qhov zoo ntawm CWDM?
1. Cov khoom siv qis qis dua tuaj yeem txo tus nqi them ua haujlwm hauv lub network. Vim tias nws qhov loj me me, kev siv hluav taws xob tsawg, kev saib xyuas yooj yim thiab kev siv hluav taws xob yooj yim, cov khoom siv CWDM tuaj yeem siv 220 V AC fais fab mov. Vim tias qhov tsawg dua ntawm cov wavelengths, tus naj npawb ntawm cov thaub qab muaj tsawg.
2. CWDM system tuaj yeem txhim kho qhov sib kis tau ntawm optical fiber thiab txhim kho kev siv cov cuab yeej siv fiber ntau.Qhov kev tsim kho ntawm tus txiv neej tab tom ntsib kev tsis txaus ntawm cov khoom siv fiber ntau rau qee yam lossis tus nqi siab ntawm kev qiv fiber ntau. Lub sijhawm tam sim no, cov kis ntxig sib tshooj wavelength faib multiplexing system tuaj yeem muab 8 qhov kho qhov muag, thiab raws li ITU-T g.694.2 cov lus qhia tshwj xeeb, nws tuaj yeem ncav mus txog 18 kab ke kho qhov muag.
3. Kev loj me me thiab siv hluav taws xob tsawg. Lub laser ntawm CWDM system tsis xav tau semiconductor txias dua thiab kub tswj kev ua haujlwm, yog li nws tuaj yeem txo lub zog siv hluav taws xob kom meej meej.Qhov qauv yooj yim laser hauv CWDM system txo cov khoom ntim ntawm qhov sib xyaw ua ke ntawm optical transceiver, thiab kev yooj yim ntawm cov qauv qauv kuj txo cov ntim ntawm cov khoom siv thiab txuag tau chaw hauv chav.
Ntiv nplhaib xim ntawm CWDM optical modules nrog sib txawv wavelengths
Optical module tsis ua tiav kev txiav txim theem
1. Ntsuas seb lub zog kho qhov muag puas nyob hauv qhov ntsuas ntawm qhov yuav tsum tau ntsuas, yog tias tsis muaj lub teeb lossis
Qhov tshwm sim ntawm lub zog qis kho qhov muag. Cov hau kev kho:
a. Kuaj qhov ntev thiab ntsuas qhov ntsuas (DBM) ntawm kev xaiv fais fab tuag
b. Ntxuav lub ntsej muag kawg ntawm qhov kho qhov muag ntawm cov hluav taws xob thiab cov chaw nres nkoj ntawm cov khoos phis tawm.
c. Kuaj seb puas muaj lub ntsej muag kawg ntawm lub laj kab hluav taws xob txuas ua kom sib txuas dub thiab khawb, seb tus kho qhov muag hluav taws xob txuas puas tawg, thiab hloov kho qhov kho qhov muag txuas rau kev sib pauv hloov.
d. Kuaj rau cov khoov me me rau hauv cov roj carbon fiber txuas.
e. Qhov kub hloov sib dhos optical module tuaj yeem rov txuas thiab kuaj.
f. Hloov cov kho qhov muag hluav taws xob nyob ntawm tib lub chaw nres nkoj lossis hloov chaw nres nkoj nrog tib lub qauv kho qhov muag.
2. Lub zog hluav taws xob yog qhov qub, tab sis txuas tsis tau txuas nrog. Tshawb xyuas cov khoom siv
Qhov kev sib kis deb ntawm optical module yog txwv tsuas yog vim qhov poob thiab kis ntawm lub teeb liab kho qhov muag hauv fiber ntau.
Poob: qhov poob ntawm lub zog lub zog vim qhov nqus, tawg thiab cov tawv ntawm lub nruab nrab thaum lub sij hawm xa cov teeb hauv lub fiber ntau. Qhov no ntawm lub zog yog dissipated nyob rau hauv ib qho kev sib piv nrog qhov nce ntawm kis tau mus deb.
Kev faib tawm: hluav taws xob hluav taws xob tsis sib txawv ntawm lub yoj yoj sib txawv txav ntawm cov nrawm sib txawv hauv tib qho nruab nrab, ua rau muaj qhov sib txawv ntawm cov duab hluav taws xob mus txog ntawm cov cim kho qhov muag tuaj txog ntawm qhov tau txais thaum xaus ntawm lub sijhawm sib txawv vim kev sib txuam ntawm kev sib kis, uas ua rau muaj ntau dua ntawm cov pulses thiab qhov tsis muaj peev xwm paub qhov txawv. teeb liab tseem ceeb.
Ob qhov kev sib txuas no cuam tshuam txog kev sib kis mus deb ntawm lub ntsuas hluav taws xob. Hauv cov txheej txheem ua ntawv thov, cov kab txuas txuas ntawm 1310nm optical module feem ntau xam raws li 0.35dbm / km, thiab hais tias ntawm 1550nm optical module feem ntau xam li 0.20dbm / km. Qhov muab xam ntawm dispersion tus nqi yog qhov nyuaj heev thiab feem ntau tsuas yog rau kev siv xwb. Yog li, cov neeg siv yuav tsum tau xaiv qhov tsim nyog optical module raws li lawv cov xwm txheej tiag tiag kom tau raws li qhov yuav tsum tau ua ntawm sib txawv kev sib kis.
Muaj ob hom kev txais cov cuab yeej hluav taws xob (cov cuab yeej siv kho qhov muag) siv hauv kev sib txuas lus kho qhov muag, uas yog PIN photodiode thiab APD avalanche photodiode.
Hom | Teb band | Cov lus txhawb zoo | Nyias tsis zoo | Cov kev siv tseem ceeb |
GaAs / InGaAs PIN PD (Tsis muaj kev cuam tshuam rau ob npaug） | 830nm ~ {860 nm 1100nm ~ 1600nm | Lub suab nrov muaj tsawg; Qhov ntsuas hluav taws xob ua haujlwm tsawg, Kev ua haujlwm ntev; Siv tau yooj yim thiab pheej yig | Tsawg rhiab heev | 155M~40G； Luv nrug （40KM） |
InGaAs APD PD (nrog cov nyhuv ntau dua) | 1550nm | Siab rhiab | Suab nrov; Lub zog ua hauj lwm siab yog siab (50V ~ 200V); Tus nqi yuav kim dua | 1.25G~10G； deb kev deb （120KM） |
Kev faib tawm ntawm cov khoom siv kho qhov muag:
Raws li cov qauv, nws muaj peev xwm raug faib ua: rau cov cuab yeej (Tosa, Rosa, Bosa); dip (lossis npauj npaim) ntaus ntawv; nto deg ntaus ntawv.
Tosa ntaus ntawv: lub teeb ntaus hluav taws xob;
Rosa ntaus ntawv: cov khoom siv kho qhov muag;
Bosa ntaus ntawv: cov khoom siv sib hloov transceiver.
Qhov sib txawv ntawm CWDM optical module thiab lwm cov qauv kho qhov muag
1. Dab tsi yog qhov sib txawv ntawm CWDM optical module thiab nquag kho qhov muag module?
W CWDM optical module siv hluav taws xob optical fiber tsawg dua li cov qauv kho qhov muag, uas tuaj yeem txhim kho kev siv cov khoom siv fiber ntau.
● Tom qab CWDM optical module tau muab tso rau hauv qhov hloov, qhov ntsuas hluav taws xob tau siv hauv CWDM / demultiplexer xav tau siv. Txawm li cas los xij, qhov yooj yim kho qhov muag tau khiav tau tom qab nws tau ncaj qha ntxig rau hauv kev hloov
● Muaj 18 channel wavelengths (1270-1610nm) hauv CWDM optical module, thiab lub nthwv dej ntu ntawm txhua cov channel yog 20nm. Thewavelength ntawm cov khoom siv kho qhov muag dav dav yog 850nm, 1310nm, 1330nm thiab 1550nm.
● Raws li tus nqi qis WDM xa mus rau cov cuab yeej siv hluav taws xob rau thaj tsam thaj chaw nkag mus rau txheej, CWDM feem ntau yog siv hauv kev sib txuas lus hauv xov tooj, thaum qhov khoos phis tawm kho qhov muag tau siv ntau hauv cov xov sib txuas lus.
2. Qhov sib txawv ntawm CWDM thiab DWDM yog dab tsi?
Lub hauv paus ntsiab lus ntawm DWDM optical module zoo ib yam li CWDM optical module, tab sis DWDM optical module yog rau DWDM optical module, nws muaj 40 hom kev xaiv tau xaiv.
3. CWDM thiab DWDM optical modules thov qhov twg?
CWDM optical module siv dav hauv tsev kawm, thaj chaw cov ntaub ntawv, FTTH (fiber ntau rau hauv tsev), 1g thiab 2G fiber ntau channel, Gigabit Ethernet hauv txiv neej, kev ruaj ntseg thiab tiv thaiv kev tiv thaiv.
DWDM optical module yog siv nyob rau hauv kev sib nrug deb deb synchronous digital kis network, xws li Ethernet / fiber channel ntawm 200km txuas thiab 80km txuas kuj tseem siv tau.
4. Qhov twg yog qhov zoo dua, CWDM optical module lossis DWDM optical module?
Los ntawm cov nqi kev pom, CWDM optical module yog qhov pheej yig dua DWDM optical module. CWDM optical module muab txoj kev yooj yim thiab tsis raug nqi rau Gigabit Ethernet thiab cov channel fiber. DWDM, ntawm qhov tod tes, feem ntau yog siv cov phiaj xwm channel ntau dua thiab yog siv rau cov kho qhov muag loj loj nyob rau qhov chaw deb. Yog tias koj xav tau SFP module ntev-ntev, DWDM optical module yog qhov kev xaiv zoo tshaj plaws.
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