Optical splitter yog ib qho tseem ceeb ntawm cov khoom siv passive nyob rau hauv qhov sib txuas ntawm fiber ntau, thiab feem ntau ua lub luag haujlwm ntawm kev sib cais.Nws yog feem ntau siv nyob rau hauv qhov kho qhov muag kab davhlau ya nyob twg OLT thiab lub kho qhov muag network davhlau ya nyob twg ONU ntawm lub passive kho qhov muag network kom paub qhov kho qhov muag teeb liab splitting.
Lub optical splitter faib cov teeb liab kis tau tus mob nyob rau hauv ib qho kev kho qhov muag fiber ntau rau ntau qhov kho qhov muag fibers.Muaj ntau hom kev faib tawm, 1 × 2, 1 × 4, 1 × N, lossis 2 × 4, M × N. Cov qauv dav dav ntawm FTTH yog: OLT (lub computer chav ua haujlwm kawg)-ODN (passive optical network faib system )-ONU(neeg siv kawg), nyob rau hauv uas lub optical splitter yog siv nyob rau hauv ODN kom paub tias ntau tus neeg siv kawg qhia ib PON interface.Nyob rau hauv cov qauv PON, thaum kev faib cov vaj tse tau tawg thiab tsis sib xws, xws li kev faib cov villas, qhov kev ncua deb yog nyob deb, thiab qhov ceev ntawm cov neeg siv yog tsawg, lub centralized splitting txoj kev yuav ua tau tag nrho cov kev siv ntawm cov kev pab cuam thiab npog lub cheeb tsam.
Tsuas yog ib qho optical splitter yuav siv tau nyob rau hauv passive optical network, los yog ntau yam optical splitters yuav siv tau ua ke los faib optical signals.
Cov ntsuas kev ua tau zoo uas cuam tshuam rau optical splitter feem ntau yog cov hauv qab no:
Insertion poob
Qhov kev poob qis ntawm cov fiber ntau splitter yog hais txog tus naj npawb ntawm dB ntawm txhua qhov tso zis txheeb ze rau qhov input optical poob.Feem ntau hais lus, qhov me me ntawm qhov ntxig poob tus nqi.
Split ratio
Qhov sib cais yog txhais raws li qhov tso zis hluav taws xob piv ntawm txhua qhov chaw tso zis ntawm fiber ntau splitter.Feem ntau, qhov sib cais ntawm PLC optical splitter yog sib npaug, thiab qhov sib cais ntawm cov fused tapered optical splitter tuaj yeem sib npaug.
Qhov kev sib piv tshwj xeeb ntawm qhov sib cais yog cuam tshuam nrog lub wavelength ntawm lub teeb kis.Piv txwv li, thaum ib ceg kho qhov muag xa tawm 1.31 micron lub teeb, qhov sib cais ntawm ob qhov tso zis kawg yog 50:50;thaum kis 1.5μm lub teeb, nws dhau los ua 70: 30 (Qhov laj thawj yog vim li cas qhov no tshwm sim yog vim qhov fiber ntau splitter muaj qee qhov bandwidth, uas yog, bandwidth ntawm lub teeb liab kho qhov muag kis tau thaum qhov sib faib sib faib yog qhov pib tsis hloov).
Muab cais nyob ib leeg
Kev rho tawm yog hais txog kev muaj peev xwm cais tawm ntawm ib txoj hauv kev kho qhov muag ntawm ib qho optical fiber splitter los ntawm cov teeb liab kho qhov muag hauv lwm txoj kev kho qhov muag.
Rov qab poob
Rov qab poob, tseem hu ua kev xav poob, hais txog lub zog poob ntawm lub teeb liab kho qhov muag rov qab los yog cuam tshuam los ntawm qhov tsis sib xws hauv cov fiber ntau lossis cov kab sib kis.
Qhov ntau dua qhov rov qab poob, qhov zoo dua, kom txo tau qhov cuam tshuam ntawm qhov cuam tshuam ntawm lub teeb pom kev ntawm lub teeb ci thiab qhov system.
Tsis tas li ntawd, uniformity, directivity, PDL polarization poob, thiab lwm yam kuj yog cov tsis muaj feem xyuam rau kev ua tau zoo ntawm lub optical splitter.Optical fiber splitter yog ib qho tseem ceeb tshaj plaws passive pab kiag li lawm nyob rau hauv lub kho qhov muag fiber txuas, thiab yog tshwj xeeb tshaj yog haum rau txuas MDF thiab terminal khoom nyob rau hauv passive optical networks (PEB, GPON, BPON, FTTX, FTTH, thiab lwm yam) los faib cov teeb liab kho qhov muag.