Lub npe tag nrho ntawm optical module yogoptical transceiver, uas yog ib qho khoom siv tseem ceeb hauv kev sib txuas lus kho qhov muag fiber ntau.Nws yog lub luag haujlwm rau kev hloov pauv qhov tau txais cov teeb liab kho qhov muag rau hauv lub teeb liab hluav taws xob, lossis hloov cov teeb liab hluav taws xob nkag mus rau hauv lub teeb pom kev ruaj khov ntawm tus nqi sib xws.
Covkho qhov muag module yog tsim los ntawm optoelectronic li, functional circuits thiab optical interfaces.Cov khoom siv optoelectronic suav nrog ob ntu: kis (TOSA) thiab txais (ROSA).
Cov txheej txheem tseem ceeb ntawm cov khoom siv kho qhov muag muaj xws li qhov nruab nrab kis tau tus mob optical zog, kev ploj tuag piv, tau txais rhiab heev, thiab saturated optical zog.
1. Qhov nruab nrab kis tau tus mob optical zog yog hais txog tus lej lej ntawm lub zog kho qhov muag thaum lub teeb liab logic yog 1 thiab lub zog kho qhov muag thaum nws yog 0.
2. Qhov kev ploj tuag yog hais txog qhov sib piv ntawm qhov nruab nrab kis hluav taws xob kho qhov muag ntawm tag nrho "1" cov lej rau qhov nruab nrab kis hluav taws xob kho qhov muag ntawm tag nrho "0" cov lej.Nws yuav cuam tshuam qhov tau txais rhiab heev.Qhov piv ntawm extinction yuav tsum tau tswj nyob rau hauv ib tug tsim nyog ntau yam.Ib tug loj extinction ratio yog conducive rau txo hwj chim txim, tab sis loj heev yuav ua rau kom tus qauv-txog jitter ntawm laser.
3. Kev txais rhiab heev yog hais txog qhov tsawg kawg nkaus txwv uas qhov kawg tau txais tuaj yeem tau txais lub teeb liab.Thaum lub teeb liab lub zog ntawm qhov kawg tau txais tsawg dua li tus qauv tau txais rhiab heev, qhov kawg tau txais yuav tsis tau txais cov ntaub ntawv.
4. Tus nqi hluav taws xob saturated optical hais txog qhov siab tshaj plaws uas pom tau qhov muag pom lub zog ntawm qhov tau txais qhov kawg ntawm qhov kho qhov muag module, feem ntau -3dBm.Thaum lub hwj chim kho qhov muag tau txais ntau dua lub hwj chim kho qhov muag saturated, me ntsis yuam kev kuj yuav raug generated.Yog li ntawd, yog hais tias lub optical module nrog high transmitting optical zog yog kuaj tsis muaj attenuation thiab loopback, me ntsis yuam kev yuav tshwm sim.
