Ua ntej, qhov kev paub txog kev kho qhov muag module
1.Definition:
Optical module: uas yog, optical transceiver module.
2. Qauv:
Lub optical transceiver module yog tsim los ntawm ib qho khoom siv optoelectronic, kev ua haujlwm hauv Circuit Court thiab ib qho khoom siv kho qhov muag, thiab cov khoom siv optoelectronic suav nrog ob ntu: xa thiab txais.
Cov kis tau tus mob yog: ib qho hluav taws xob teeb liab inputing ib co code tus nqi yog ua tiav los ntawm ib tug sab hauv tsav nti tsav ib tug semiconductor laser (LD) los yog lub teeb emitting diode (LED) emit ib tug modulated lub teeb teeb liab ntawm tus nqi sib raug, thiab ib tug optical. fais fab tsis siv neeg tswj Circuit Court yog nyob rau hauv muab nyob rau hauv.Qhov tso zis optical teeb liab fais fab tseem nyob ruaj khov.
Qhov tau txais yog: lub teeb liab optical input module ntawm qee tus lej code tau hloov mus rau hauv lub teeb liab hluav taws xob los ntawm photodetecting diode.Tom qab lub preamplifier, hluav taws xob teeb liab ntawm tus lej code tus nqi yog cov zis, thiab cov teeb liab tso zis feem ntau yog qib PECL.Nyob rau tib lub sij hawm, lub tswb ceeb toom yog tso tawm tom qab lub input optical zog yog tsawg tshaj li ib tug tej yam nqi.
3.Qhov tsis muaj thiab qhov tseem ceeb ntawm qhov kho qhov muag module
Optical modules muaj ntau yam tseem ceeb ntawm optoelectronic technical parameters.Txawm li cas los xij, rau ob qhov kub-swappable optical modules, GBIC thiab SFP, peb qhov tsis muaj kev txhawj xeeb tshaj plaws thaum xaiv:
(1) Nruab nrab wavelength
Hauv nanometers (nm), tam sim no muaj peb hom loj:
850nm (MM, multimode, tus nqi qis tab sis luv luv kis tau tus mob, feem ntau tsuas yog 500M);1310nm (SM, ib hom, poob loj thaum lub sij hawm kis tau tus mob tab sis me me dispersion, feem ntau yog siv rau kis nyob rau hauv 40KM);
1550nm (SM, ib hom, tsawg poob thaum kis tau tus mob tab sis loj dispersion, feem ntau siv rau kev sib kis ntev tshaj 40KM, thiab tuaj yeem xa ncaj qha 120KM yam tsis muaj relay);
(2) Kev sib kis tus nqi
Tus naj npawb ntawm cov khoom (ntsis) ntawm cov ntaub ntawv xa mus rau ib ob, hauv bps.
Tam sim no muaj plaub hom kev siv: 155 Mbps, 1.25 Gbps, 2.5 Gbps, 10 Gbps, thiab lwm yam.Tus nqi kis tau tus mob feem ntau rov qab tau tshaj.Yog li ntawd, 155M optical module tseem hu ua FE (100 Mbps) optical module, thiab 1.25G optical module kuj hu ua GE (Gigabit) optical module.
Qhov no yog qhov feem ntau siv module hauv optical kis tau tus mob.Tsis tas li ntawd, nws tus nqi xa mus rau hauv fiber ntau cia systems (SAN) yog 2Gbps, 4Gbps thiab 8Gbps.
(3) Kev sib kis nrug
Lub teeb liab kho qhov muag tsis tas yuav tsum tau xa mus rau qhov deb uas tuaj yeem xa ncaj qha, hauv mais (tseem hu ua mais, km).Optical modules feem ntau muaj cov nram qab no specifications: multimode 550m, ib hom 15km, 40km, 80km, thiab 120km, thiab hais txog.