10CH CWDM ABS MUXDEMX
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.
- Khoom Taw qhia
Dab tsi yog qhov ntsuas kev ua tau zoo uas cuam tshuam rau WDM wavelength division multiplexers?
1. Ua haujlwm band
Kev ua haujlwm ntawm WDM cov khoom siv, xws li 1550 wavelength, tau muab faib ua peb pawg: S band (short wavelength band 1460 ~ 1528nm), C band (paj band 1530 ~ 1565nm), L band (ntev wavelength band 1565 ~ 1625nm).
2. Tus naj npawb ntawm cov channel thiab qhov sib nrug ntawm cov channel
Tus naj npawb ntawm cov channel hais txog cov xov tooj ntawm cov channel uas tuaj yeem ua ke los yog sib cais los ntawm wavelength division multiplexer / demultiplexer. Tus lej no tuaj yeem nyob ntawm 4 txog 160. Tus tsim yog kho kom zoo dua los ntawm kev ntxiv ntau cov channel. Cov naj npawb ntawm cov channel feem ntau yog 4, 8, 16, 32, 40, 48, thiab lwm yam. Channel spacing yog hais txog qhov sib txawv ntawm cov neeg nqa khoom zaus ntawm ob txoj kab uas nyob ib sab, uas tuaj yeem siv los tiv thaiv kev cuam tshuam ntawm cov channel. Raws li kev pom zoo ntawm ITU-T G.692, qhov sib nrug tsawg dua 200GHz (1.6nm) suav nrog 100GHz (0.8nm), 50GHz (0.4nm) thiab 25GHz. Tam sim no, 100GHz thiab 50GHz channel spacing yog nyiam.
3. Insertion poob
Insertion poob yog qhov attenuation tshwm sim los ntawm kev nkag ntawm lub wavelength division multiplexer (WDM) nyob rau hauv ib qho optical kis tau tus mob. Lub attenuation ntawm lub wavelength division multiplexer nws tus kheej ntawm cov teeb liab optical ncaj qha cuam tshuam rau kev sib kis ntawm qhov system. Feem ntau, qhov qis dua qhov poob, qhov qis dua qhov teeb liab attenuation.
4. Kev cais tawm
Kev rho tawm yog hais txog qhov kev sib cais ntawm cov teeb liab ntawm txhua tus channel. Tus nqi sib cais siab tuaj yeem tiv thaiv crosstalk ntawm cov teeb liab thiab ua rau muaj kev cuam tshuam ntawm cov teeb liab sib kis.
5. Polarization-dependent poob PDL
Polarization-dependent poob PDL yog qhov kev ncua deb ntawm qhov siab tshaj plaws thiab qhov tsawg kawg nkaus poob los ntawm cov polarization sib txawv ntawm qhov kub thiab txias, wavelength thiab tib lub band, uas yog, qhov siab tshaj qhov sib txawv ntawm qhov poob ntawm tag nrho cov input polarization xeev.
Ntxiv rau qhov saum toj no, muaj qhov tseeb lwm yam kev ua tau zoo uas cuam tshuam rau WDM cov khoom siv, xws li kev ua haujlwm kub, bandwidth, thiab lwm yam.
| Parameter | ||||||||||||||
| Ua haujlwm wavelength (nm) | Mux | 1270 | 1290 | 1310 | 1330 | 1350 | 1370 | 1390 | 1410 | 1430 | 1450 | |||
| Insertion poob (dB) | <0.3 | 0.49 | 0.73 | 1.03 | 1.39 | 1.53 | 1.65 | 2.00 | 2.19 | 2.22 | 2.57 | |||
| Channel Ripple (dB) | <0.3 | |||||||||||||
| Polarization Dependent Loss (dB) | <0.1 | |||||||||||||
| Polarization Hom Dispersion (ps) | <0.1 | |||||||||||||
| Muab cais nyob ib leeg | Nyob ib sab (dB) | >30 | ||||||||||||
| Tsis nyob ib sab (dB) | >45 | |||||||||||||
| Kev taw qhia (dB) | >50 | |||||||||||||
| Rov Los Loss (dB) | >45 | |||||||||||||
| Fiber ntau (m) | 1.0M | |||||||||||||
| Fiber hom | SMF{0}}e 2.0 Loose Tube | |||||||||||||
| Txuas | LC / UPC | |||||||||||||
| Ua haujlwm kub (degree) | -20~+70 | |||||||||||||
| Cia kub (degree) | -40~+85 | |||||||||||||
| Ntim Dimension (mm) | 120*80*18 | |||||||||||||
Cim npe nrov: 10CH CWDM ABS MUXDEMX, Tuam Tshoj 10CH CWDM ABS MUXDEMX lwm tus neeg, manufacturers, hoobkas
