8CH CWDM Mux/Demux ABS Module
Coarse wavelength division multiplexer (CWDM) yog tus nqi qis WDM kis tau tus mob thev naus laus zis siv nyob rau hauv cov txheej txheem nkag mus hauv cheeb tsam hauv nroog. Nyob rau hauv txoj cai, CWDM siv ib qho optical multiplexer rau multiplex optical signals ntawm txawv wavelengths rau hauv ib qho fiber ntau optical rau kev sib kis. Thaum tau txais qhov kawg ntawm qhov txuas, optical demultiplexer yog siv los decompose cov teeb liab sib xyaw hauv cov khoom siv kho qhov muag rau hauv cov teeb liab sib txawv wavelengths thiab txuas mus rau cov khoom siv tau txais.
- Product Introduction
Khoom nta
CWDM txais cov tshuab lim nyias zaj duab xis thiab muaj kev ruaj ntseg wavelength zoo. Hloov kho cov chaw nres nkoj tuaj yeem teeb tsa raws li qhov xav tau. Nws muaj qhov poob qis qis, kev sib cais siab, kev ua haujlwm ruaj khov thiab kub ruaj khov. Cov khoom lag luam muaj qhov qis qis qis thiab siab channel cais tawm. degree, dav bandwidth thiab kub rhiab heev. Feem ntau muab faib ua 4 channels, 8 channels, 16 channels lossis mus txog 18 channels coarse wavelength division multiplexer. Vim tias qhov qis qis qis yuav tsum tau ua ntawm cov txheej txheem coarse wavelength division system, thaum tus naj npawb ntawm cov channel loj, jumpers tuaj yeem muab ntxiv rau hauv lub module kom txo tau qhov kev poob ntawm txhua channel. Feem ntau coarse wavelength faib cov ntaub ntawv ntim tau muab faib ua: ABS lub thawv hom, LGX lub thawv hom thiab 19-inch 1U chassis ntim, thiab lwm yam.
Daim ntawv thov
CWDM daws ob qhov teeb meem ntawm fiber ntau tsis txaus thiab ntau qhov kev pabcuam pob tshab. Nws yog tsuas yog siv nyob rau hauv kev sib sau ua ke thiab nkag mus rau cov khaubncaws sab nraud povtseg ntawm cov cheeb tsam hauv nroog, thiab tuaj yeem tsim cov tes hauj lwm thiab tso cov kev pabcuam hauv lub sijhawm luv luv. Tam sim no nws yog dav siv nyob rau hauv cheeb tsam cheeb tsam network kis tau tus mob thiab CATV systems.
CWDM technology
Nyob rau hauv txoj cai, ib qho optical multiplexer yog siv los multiplex optical signals ntawm txawv wavelengths rau hauv ib qho fiber ntau optical rau kev sib kis. Thaum qhov kawg tau txais qhov txuas, ib qho optical demultiplexer yog siv los decompose cov teeb liab sib xyaw hauv cov fiber ntau rau hauv cov teeb liab ntawm cov wavelengths sib txawv. txuas mus rau cov khoom siv tau txais. CWDM muaj 18 bands, los ntawm 1270nm mus rau 1610nm, thiab lub caij nyoog ntawm txhua pawg yog 20nm.
Txij li lub sijhawm wavelength ntawm CWDM system yog dav thiab cov kev qhia tshwj xeeb ntawm lub laser yog qis dua, cov qauv ntawm lub laser tau yooj yim heev thiab cov txiaj ntsig tau zoo tuaj. Tsis tas li ntawd, kev siv hluav taws xob thiab lub cev loj ntawm CWDM systems yog tsawg dua li ntawm DWDM systems. Tsis tas li ntawd, CWDM optical modulation siv tsis-txias lasers thiab yog siv hluav taws xob tuned; thaum DWDM siv cov lasers txias thiab yog ntsuas kub. Txij li thaum qhov kub thiab txias faib tsis sib npaug ntawm qhov dav ntawm qhov muag wavelength, qhov ntsuas kub yog qhov nyuaj thiab kim heev los siv. CWDM zam qhov teeb meem no thiab yog li txo tus nqi. Tam sim no, tus nqi ntawm CWDM system feem ntau tsuas yog 30% ntawm DWDM.
Kev sib piv ntawm CWDM thiab DWDM
CWDM thiab DWDM puas tuaj yeem nyob hauv tib lub network?
Yog lawm, CWDM (Coarse Wavelength Division Multiplexing) thiab DWDM (Dense Wavelength Division Multiplexing) tuaj yeem koom ua ke hauv tib lub network. Lawv ua haujlwm ntawm qhov sib txawv wavelength spacing scales thiab tuaj yeem ua tau raws li qhov sib txawv ntawm lub peev xwm thiab kev ncua deb ntawm qhov sib txawv ntawm lub network.
Dab tsi yog lub luag haujlwm ntawm lub teeb liab hloov pauv hauv WDM systems?
Cov teeb liab hloov pauv hauv wavelength division multiplexing (WDM) systems yog qhov tseem ceeb rau kev nkag siab cov ntaub ntawv digital mus rau cov teeb pom kev kho qhov muag kom lawv tuaj yeem xa mus ib txhij dhau ib qho fiber ntau optical. Nws ua kom cov ntaub ntawv sib kis tau zoo, teeb liab kev ncaj ncees thiab kev sib raug zoo ntawm cov khoom siv hauv network, pab txhim kho tag nrho cov kev ua tau zoo thiab kev ua haujlwm ntawm WDM tes hauj lwm.
Yuav ua li cas CWDM thiab DWDM txhim kho kev ua tau zoo ntawm cov khoom siv kho qhov muag?
Coarse wavelength division multiplexing (CWDM) thiab ntom wavelength division multiplexing (DWDM) ua kom cov kev ua haujlwm ntawm cov khoom siv kho qhov muag los ntawm kev tso cai rau ntau cov ntaub ntawv xa tawm ib txhij ntawm tib lub fiber ntau optical. Qhov no ua rau kom tag nrho lub peev xwm ntawm lub network tsis tas yuav tsum muaj fiber ntau ntxiv.
Dab tsi yog qhov sib txawv channel ntawm CWDM thiab DWDM hauv nm?
CWDM, Coarse Wavelength Division Multiplexer, sparse wavelength division multiplexing, tseem hu ua coarse wavelength division multiplexing. CWDM wavelength siv 1270nm rau 1610nm, nrog 18 qhov sib txawv wavelength raws, txhua channel yog qhov sib nrug 20nm.
DWDM, Dense Wavelength Division Multiplexer, ntom wavelength division multiplexing, tseem hu ua fine wavelength division multiplexing. Qhov sib nrug ntawm DWDM tuaj yeem yog 1.6nm, 0.8nm, 0.4nm, thiab 0.2nm, uas tuaj yeem haum 40, 80, thiab 160 nthwv dej.
Lub wavelength ntau ntawm DWDM yog 1525nm txog 1565nm (C-band) thiab 1570nm txog 1610nm (L-band). DMDM feem ntau yog siv hauv C-band (C17 ~ C61), nrog lub sijhawm wavelength ntawm 0.4nm.
Specification
|
Parameter |
4 Channel |
8 Channel |
16 Channel |
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Mux |
Demux |
Mux |
Demux |
Mux |
Demux |
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Channel Wavelength (nm) |
1270~1610 |
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Center wavelength qhov tseeb (nm) |
±0.5 |
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Channel qhov nrug (nm) |
20 |
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Channel Passband (@-0.5dB bandwidth (nm) |
>13 |
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Insertion poob (dB) |
Tsawg dua los yog sib npaug rau 1.6 |
Tsawg dua lossis sib npaug li 2.5 |
Tsawg dua lossis sib npaug li 4.5 |
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Channel Uniformity (dB) |
Tsawg dua lossis sib npaug rau 0.6 |
Tsawg dua los yog sib npaug rau 1.0 |
Tsawg dua los yog sib npaug li 1.5 |
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Channel Ripple (dB) |
0.3 |
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Kev rho tawm (dB) |
Nyob ib sab |
N/A |
>30 |
N/A |
>30 |
N/A |
>30 |
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Tsis nyob ib sab |
N/A |
>40 |
N/A |
>40 |
N/A |
>40 |
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Inertion Loss Temperature Sensitivity (dB / degree) |
<0.005 |
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Wavelength kub hloov pauv (nm / degree) |
<0.002 |
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Polarization Dependent Loss (dB) |
<0.1 |
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Polarization Hom Dispersion |
<0.1 |
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Kev taw qhia (dB) |
>50 |
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Rov Los Loss (dB) |
>45 |
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Fais fab tuag (mW) |
300 |
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Kev ntsuas kub (degree) |
-5~+75 |
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Cia kub (degree) |
-40~85 |
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Pob qhov loj (mm) |
L100 x W80 x H10 (2CH-8CH) |
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L142 x W 102 x H 14.5 (9CH-18CH) |
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Tag nrho cov kev qhia tshwj xeeb yog ua raws li cov khoom siv tsis muaj cov khoom sib txuas, thiab tau lees paub dhau wavelength, polarization thiab kub.
Simplex BI-Diirectional Transmission yuav tsum tau siv hauv Pairs, MUX / DEMUX chaw nres nkoj rau cov wavelength tshwj xeeb yuav tsum yog qhov sib txawv.
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