ib ,Txoj cai ntawm photoreceptor
Covoptical txaisyog ib feem tseem ceeb ntawm kev sib txuas lus fiber ntau optical. Nws lub hauv paus ntsiab lus yog hloov kho qhov muag teeb liab mus rau hauv cov teeb liab hluav taws xob. Cov khoom tseem ceeb ntawm tus txais optical muaj xws li photodetector, preamplifier thiab postamplifier. Thaum lub teeb liab kho qhov muag xa mus rau photodetector los ntawm fiber ntau optical, lub photodetector hloov cov teeb liab kho qhov muag mus rau hauv lub teeb liab hluav taws xob, thiab tom qab ntawd cov teeb liab yog amplified thiab lim los ntawm lub preamplifier, thiab thaum kawg ua tiav ntxiv thiab xa mus los ntawm postamplifier.
二,Kev ua haujlwm ntawm photoreceptor
1. Kev hloov pauv ntawm cov teeb liab kho qhov muag rau cov teeb liab hluav taws xob:Lub luag haujlwm tseem ceeb tshaj plaws ntawm tus neeg txais kev kho qhov muag yog hloov pauv cov teeb liab kis tau los rau hauv cov teeb liab hluav taws xob los pab txhawb cov teeb liab tom ntej thiab kev sib kis. Qhov no yog ua tiav siv photodetectors, uas ntes cov teeb liab tsis muaj zog thiab hloov mus rau hauv cov teeb liab hluav taws xob.
2. Teeb liab amplification:Txij li qhov kev siv ntawm cov teeb liab kho qhov muag yuav maj mam tsis muaj zog thaum lub sij hawm kho qhov muag fiber ntau cov txheej txheem, qhov kev siv ntawm cov teeb liab kho qhov muag yuav tsis muaj zog heev thaum nws mus txog qhov muag optical receiver. Lub preamplifier nyob rau hauv lub optical receiver tuaj yeem ua kom cov hluav taws xob tsis muaj zog no kom lawv ua tau zoo dua thiab xa mus.
3. Teeb liab lim:Thaum lub sij hawm kho qhov muag fiber ntau cov txheej txheem, ntau lub suab nrov thiab cuam tshuam yuav raug qhia, uas yuav cuam tshuam rau qhov zoo ntawm cov teeb liab. Lub preamplifier nyob rau hauv lub optical receiver feem ntau yog nruab nrog lub lim kom tshem tawm cov suab nrov thiab cuam tshuam thiab txhim kho cov teeb liab zoo.
4. Kev ua haujlwm teeb liab:Tom qab-amplifier tuaj yeem ua tiav cov teeb liab hluav taws xob ntxiv, xws li kev txiav txim siab, demodulation, thiab lwm yam, kom nws tuaj yeem rov qab mus rau qhov qub digital lossis analog teeb liab. Tsis tas li ntawd, los ntawm lub tshuab hluav taws xob tom qab, cov teeb liab hluav taws xob kuj tuaj yeem hloov kho thiab ua kom zoo dua qub, xws li kho qhov amplitude, zaus thiab lwm yam tsis zoo ntawm lub teeb liab, kom nws tuaj yeem ua tau raws li cov kev xav tau ntawm kev sib txuas lus tom ntej.
5. Tso zis hluav taws xob teeb liab:Cov khoom siv hluav taws xob ua tiav tuaj yeem tso tawm rau lwm cov khoom siv lossis cov tshuab kom ua tiav cov ntaub ntawv xa mus thiab sib qhia. Piv txwv li, nyob rau hauv ib qho kev sib txuas lus kho qhov muag fiber ntau, cov teeb liab hluav taws xob ua tiav los ntawm optical receiver tuaj yeem xa mus rau khoos phis tawj, keyboards lossis lwm yam khoom siv sib txuas lus.
三,Taw qhia rau CEITATECH FTTH optical receiver
1.FTTH Optical Receiver (CT-2001C)Txheej txheem cej luam
Cov khoom no yog FTTH optical receiver. Nws txais kev txais hluav taws xob qis qis thiab kho qhov muag AGC thev naus laus zis kom ua tau raws li qhov xav tau ntawm fiber ntau-rau-lub tsev. Siv triple play optical input, tswj kev ruaj ntseg teeb liab los ntawm AGC, nrog WDM, 1100-1620nm CATV teeb liab photoelectric hloov dua siab tshiab thiab RF tso zis cable TV program.
Cov khoom muaj cov yam ntxwv ntawm cov qauv compact, yooj yim installation thiab tus nqi qis. Nws yog ib qho khoom zoo tshaj plaws rau lub tsev cable TV FTTH network.
FTTH Optical Receiver(CT-2001C)
l Lub plhaub yas zoo nrog cov hluav taws kub zoo.
l RF channel tag nrho GaAs tsis tshua muaj suab nrov amplifier Circuit Court. Qhov tsawg kawg nkaus txais ntawm cov teeb liab yog -18dBm, thiab qhov tsawg kawg nkaus txais ntawm cov teeb liab analog yog -15dBm.
l AGC tswj ntau yam yog -2 ~ -14dBm, thiab cov zis yog tsis hloov pauv. (AGC ntau yam tuaj yeem kho raws li tus neeg siv).
l Cov qauv siv hluav taws xob tsawg, siv cov khoom siv hluav taws xob hloov pauv kom muaj kev ntseeg siab thiab ruaj khov ntawm cov khoom siv hluav taws xob. Lub zog noj ntawm tag nrho lub tshuab yog tsawg dua 3W, nrog lub teeb pom kev hauv Circuit Court.
l Built-in WDM, paub txog ib qho fiber ntau nkag (1100-1620nm) daim ntawv thov.
l SC / APC thiab SC / UPC lossis FC / APC optical connector, metric lossis nti RF interface xaiv tau.
l Lub hwj huam mov hom ntawm 12V DC input chaw nres nkoj.
1.1Schematic daim duab
2.FTTH Optical Receiver (CT-2002C)Txheej txheem cej luam
Cov khoom no yog FTTH optical receiver, siv lub hwj chim qis optical txais thiab kho qhov muag AGC thev naus laus zis, uas tuaj yeem ua tau raws li cov kev xav tau ntawm fiber ntau rau hauv tsev, thiab tuaj yeem siv ua ke nrog ONU lossis EOC kom ua tiav triple ua si. Muaj WDM, 1550nm CATV teeb liab photoelectric hloov dua siab tshiab thiab RF tso zis, 1490/1310 nm PON teeb liab ncaj qha hla, uas tuaj yeem ua tau raws li FTTH ib qho kev sib kis ntawm fiber ntau CATV + EPON.
Cov khoom yog compact nyob rau hauv cov qauv thiab yooj yim rau nruab, thiab yog ib tug zoo tagnrho khoom rau tsim ib tug cable TV FTTH network.
FTTH Optical Receiver (CT-2002C)
l Lub plhaub yas zoo nrog cov hluav taws kub zoo.
l RF channel tag nrho GaAs tsis tshua muaj suab nrov amplifier Circuit Court. Qhov tsawg kawg nkaus txais ntawm cov teeb liab yog -18dBm, thiab qhov tsawg kawg nkaus txais ntawm cov teeb liab analog yog -15dBm.
l AGC tswj ntau yam yog -2 ~ -12dBm, thiab cov zis yog qhov tsis hloov pauv. (AGC
ntau yam tuaj yeem kho raws li tus neeg siv).
l Cov qauv siv hluav taws xob tsawg, siv cov khoom siv hluav taws xob hloov pauv kom muaj kev ntseeg siab thiab ruaj khov ntawm cov khoom siv hluav taws xob. Lub zog noj ntawm tag nrho lub tshuab yog tsawg dua 3W, nrog lub teeb pom kev hauv Circuit Court.
l Built-in WDM, paub ib leeg-fiber nkag (1490/1310/1550nm) triple play application.
l SC / APC lossis FC / APC optical connector, metric lossis nti RF interface xaiv tau.
l Lub hwj huam mov hom ntawm 12V DC input chaw nres nkoj.
2.2Schematic daim duab
Post lub sij hawm: Jan-13-2024
