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 feem ntau yog siv nyob rau hauv qhov kho qhov muag kab davhlau ya nyob twgOLTthiab optical network davhlau ya nyob twgONUntawm passive optical network kom paub cov teeb liab optical 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(chaw ua haujlwm hauv computer 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 tawm ntawm villas, qhov kev ncua deb yog nyob deb, thiab qhov ceev ntawm cov neeg siv tsawg, cov txheej txheem kev faib tawm hauv nruab nrab tuaj yeem siv tag nrho cov peev txheej thiab npog qhov chaw ib puag ncig.
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 optical kis tau thaum qhov sib faib piv yog qhov tsis hloov pauv).
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, yog hais txog lub zog poob ntawm cov 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 kev 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 ntawm cov khoom siv hluav taws xob nyob rau hauv qhov sib txuas ntawm fiber ntau, thiab tshwj xeeb tshaj yog tsim rau kev sib txuas MDF thiab cov khoom siv davhlau ya nyob twg hauv cov khoom siv kho qhov muag (EPON, GPON, BPON, FTTX, FTTH, thiab lwm yam) los faib cov teeb liab kho qhov muag.