EDFA(Erbium Doped Fiber Amplifier)
EDFA yog qhov luv luv ntawm" Erbium-doped Optical Fiber Amplifier" hauv Lus Askiv, uas txhais tau tias erbium-doped fiber amplifier.
Nws yog ib yam khoom siv kho qhov muag uas ua kom nrov zog lub teeb liab. Lub luag haujlwm tseem ceeb yog los them cov teeb liab teeb liab hauv qhov txuas kis.
EDFA (Erbiur Doped Fiber Amplifer) yog tus sawv cev ib qho ntawm cov roj ntsha fiber ntau. Txij li thaum EDFA muaj nthwv dej ua haujlwm ntawm 1550 nm, uas yog xwm yeem nrog kev poob qis ntawm cov xov paj hluav taws xob thiab nws cov thev naus laus zis yog qhov tseem ceeb, nws tau siv dav. Lub erbium-doped fiber ntau yog qhov tseem ceeb ntawm EDFA. Nws siv quartz fiber ntau ua cov khoom siv matrix thiab sib xyaw nrog qee qhov sib luag ntawm cov khoom ntiaj teb tsis tshua muaj zog strontium ions (Er3+) rau hauv nws cov tub ntxhais. Thaum qee qhov tseeb twj tso kua mis lub teeb tau txhaj rau hauv erbium-doped fiber, Er3+ zoo siab los ntawm lub zog qis mus rau theem siab zog. Txij li thaum Er3+ muaj lub neej luv luv ntawm qib hluav taws xob ntau, nws nkag nrawm hauv qhov muaj zog ntau dua nyob rau hauv hom kev hloov pauv tsis tawg. Ib cov pej xeem inversion faib yog tsim ntawm qib zog thiab qib zog tsawg. Txij li thaum lub zog sib txawv ntawm ob theem zog yog qhov sib npaug ntawm lub zog ntawm 1550 nm photon, tsuas yog lub zog tawg ntawm 1550 nm lub teeb tuaj yeem tshwm sim, thiab tsuas yog cov teeb liab hluav taws xob ntawm 1550 nm tuaj yeem ua kom nrov zog.
Cov yam ntxwv
Tus qauv yog kev siv ua ke erbium-doped fiber ntau lub zog txuas, uas tau muab faib ua ob hom: photoelectric integrated EDFA module thiab optical nce module. Nws muaj cov yam ntxwv ntawm kev loj me, kev siv hluav taws xob tsawg thiab kev siv yooj yim. Nws tuaj yeem ntsia tau yooj yim hauv ntau txoj kev raws li tus neeg siv' s siv. Cov ntawv thov cov tshuab, xws li hauv SDH racks, CATV cov thawv, thiab DWDM system racks.
qhov zoo dua
1. Qhov ua tau zoo: Lub twj tso tawm ua ntej feem ntau 980nm, tom kawg theem yog pump 1480nm, thiab lub zog yog qhov zoo los ntawm software los txo tsawg NF ntawm EDFA, uas yog piv rau qhov thiaj li hu ua hluav taws xob tsawg. Lub kaw lus tuaj yeem ua tiav CNR zoo heev.
2. Kev ntseeg siab: nws siv 19 ′ ′ 1U txheem khib, ua nrog kev ua haujlwm siab hloov lub zog hluav taws xob, tuaj yeem ua haujlwm hauv 85∽265Vac nroog network hluav taws xob, thiab tseem tuaj yeem xaiv DC48V lub zog mov (tshwj tseg xav tau); chassis dissipation thaum tshav kub kub tuaj yeem ua kev tswj qhov kub thiab txias.
3. Kev txawj ntse: lub tshuab nqus cua laser yog cov khoom siv kim tshaj plaws ntawm lub tshuab tag nrho. Lub microprocessor sab hauv lub tshuab saib xyuas lub xeev ua haujlwm ntawm lub twj tso kua mis laser, thiab cov haujlwm tsis ua haujlwm raug pom los ntawm LCD ntawm lub vaj huam sib luag.
Nta
1. Kev tswj hwm network hom: cov yeem xaiv tau teeb meem thauj khoom tau lees tias kom tau raws li lub teb chaws tus qauv thiab tau tshaj SCTE HMS tus qauv, tuaj yeem paub txog lub network tswj kev ua haujlwm.
2. Kev siv fais fab txuas rau: hom aluminium-type qauv plug-in switching power supply yog cov txiaj ntsig zoo rau cov cua sov tawm thiab hloov. Thiab dual fais fab mov kub thiab txias thaub qab.
3. Lub teeb tsa hluav taws xob tsim tawm muaj peev xwm kho tau: cov khoom siv hluav taws xob tsim tawm tuaj yeem kho qhov ntau (-3dB), uas xav tau cov lus qhia tshwj xeeb thaum xaj khoom.