Cov Caij Nyoog Dav Hlau Sawv Ntsia Ntsia Hlau Ua Kom Yooj Yim
Fiber optical splitter , kuj tseem npe fiber ntau optic coupler lossis nqaj splitter, yog ib qho khoom siv uas tuaj yeem faib cov teeb liab kho qhov muag (lossis lub zog) los ntawm ib qho fiber ntau ntawm ob lossis ntau daim phiaj. Fiber optic splitter txawv ntawm WDM (Wavelength Division Multiplexing) thev naus laus zis. WDM tuaj yeem faib cov sib txawv wavelength fiber optic lub teeb rau hauv cov kab sib txawv, tab sis fiber ntau optic splitter faib cov hluav taws xob lub teeb thiab xa nws mus rau kev sib txawv.
Ua Haujlwm Cov Lus Qhia ntawm Kev Sib Tw Kho Kom Zoo
Lub Optical Splitters "sib cais" cov tswv yim optical teeb liab tau txais los ntawm nws nruab nrab ntawm ob qhov kho qhov muag tawm, tib lub sij hawm, hauv qhov ntsuas tau teev ua ntej 90:10 lossis 80:20. Feem ntau hom fiber ntau-qhov cuam tshuam splitter tawm cov khoom sib txig sib luag, nrog ib nrab lub teeb liab mus rau ib txhais ceg ntawm cov zis thiab ib nrab mus rau lwm yam. Nws yog qhov ua tau kom tau cov splitters uas siv sib cais sib faib, tso cov nyiaj ntau dua ntawm lub teeb liab mus rau ib sab ntawm splitter dua li lwm qhov. Cov khoom sib cais tau qhia nrog tus lej uas sawv cev rau lub teeb liab faib, xws li 50/50 yog tias qhov sib cais txawm yog, lossis 80/20 yog tias 80% ntawm lub teeb liab mus rau ib sab thiab tsuas yog 20% rau sab nraud.
Qee hom fiber ntau-qhov cuam tshuam tau yeej tuaj yeem ua haujlwm hauv ob qhov kev coj ua. Qhov no txhais tau hais tias yog tias cov cuab yeej raug teeb tsa nyob rau hauv ib txoj kev, nws ua raws li kev cais tawm thiab faib cov teeb liab nkag ua ob ntu, xa tawm ob qhov tshwm sim tawm. Yog tias nws raug ntsia rau hauv thim rov qab, nws ua raws li tus coupler, coj ob qho kev nkag mus thiab coj lawv mus rau hauv ib qho kev tawm. Tsis yog txhua lub xov tooj fiber ntau splitter tuaj yeem siv txoj kev no, tab sis cov uas tuaj yeem sau npe tias thim rov qab los yog ua cov coupler / splitters.
Attenuation Ntawm Fiber Optic Splitter
Qhov tseeb nthuav tawm yog tias txoj kev pom ntawm lub teeb los ntawm kev siv qhov muag hluav taws xob yog qhov zoo. Nws zoo sib xws hauv ob qho tib si. Txawm hais tias lub tshuab hluav taws xob sib xyaw ua ke sib xyaw hauv cov kev taw qhia sab saum toj los yog faib cov teeb hluav taws xob hauv qhov kev coj hauv qab, nws tseem qhia txog qhov teeb meem qub rau lub teeb liab tawm tswv yim (ib qho me ntsis ntau dua 3 dB rau txhua 1: 2 sib faib). Fiber optic splitters attenuate cov teeb liab ntau dua li ntawm fiber ntau qhov txuas lossis txaws vim tias cov teeb liab tawm tau muab faib rau cov chaw nres nkoj tawm. Piv txwv li, nrog 1 X 2 fiber ntau kho qhov muag, txhua cov khoom tawm tsawg dua li ib nrab ntawm lub zog ntawm cov phiajcim tawm (tshaj li 3 dB poob).
Passive Thiab Active Splitters
Cov hluavtaws fiber ntau tau muab faib ua cov khoom siv dag zog thiab nquag. Qhov sib txawv ntawm cov nquag thiab passive couplers yog tias passive coupler qhia txog lub teeb liab tsis kho qhov muag-rau-hluav taws xob hloov. Cov couplers siv hluav taws xob yog cov khoom siv hluav taws xob uas sib cais lossis sib txuas cov teeb liab hluav taws xob thiab siv cov roj carbon fiber ntau cov khoom ntsuas thiab cov khoom siv rau kev tawm tswv yim thiab tawm.
Passive splitters ua si txoj haujlwm tseem ceeb hauv Fiber rau Lub Tsev (FTTH) tes hauj lwm los ntawm kev tso cai ib qho PON (Passive Optical Network) network sib txuas lus kom tau txais kev koom nrog ntau tus neeg siv. Cov txiav tawm muaj xws li tsis muaj cov khoom siv hluav taws xob thiab siv tsis muaj zog. Lawv yog cov ntu hauv zej zog uas muab tso rau qhov tsis muaj npe nyob rau hauv Passive Optical Network thiab muaj nyob rau hauv ntau qhov sib txawv ntawm cov kev sib piv, suav nrog 1: 8, 1:16, thiab 1:32.
Optical splitters muaj nyob rau hauv kev teeb tsa ntawm 1 × 2 txog 1 × 64, xws li 1: 8, 1:16, thiab 1:32. Muaj ob lub thev naus laus zis yooj yim rau kev tsim hluav taws xob (passive optical network splitters): Fused Biconical Taper (FBT) thiab Planar Lightwave Circuit (PLC). FBT Coupler yog cov thev naus laus zis qub thiab feem ntau qhia cov kev ploj ntau dua li cov PLC Splitter tshiab dua .