Feem ntau hais lus, muaj ob hom fibers: cov uas txhawb nqa ntau txoj kev nthuav dav lossis hom transverse hu ua multi-mode fibers (MMF), thiab cov uas txhawb nqa ib hom hu ua single-mode fibers (SMF). Tab sis qhov txawv ntawm lawv yog dab tsi? Nyeem tsab xov xwm no yuav pab koj tau txais cov lus teb.
Txheej txheem cej luam ntawm Ib Hom Vs Multimode Fiber Optic Cable
Ib hom fiber tso cai rau kev nthuav dav ntawm tsuas yog ib hom teeb pom kev zoo ib zaug, thaum multimode optical fiber tuaj yeem nthuav dav ntau hom. Qhov sib txawv tseem ceeb ntawm lawv yog nyob rau hauv lub fiber tub ntxhais txoj kab uas hla, wavelength & lub teeb qhov chaw, bandwidth, xim sheath, nrug, nqi, thiab lwm yam.
Ib Hom Vs Multimode Fiber, Qhov Txawv Yog Dab Tsi?
Lub sijhawm los sib piv ib hom vs. multimodecov khoom siv fiber ntauthiab nkag siab txog lawv qhov sib txawv.
Txoj kab uas hla ntawm lub hauv paus
Ib hom cable muaj qhov me me dua, feem ntau yog 9μm, ua rau qis dua attenuation, bandwidths siab dua, thiab ntev dua kis tau tus mob.
Qhov sib piv, Multimode optical fiber muaj qhov loj dua ntawm cov tub ntxhais, feem ntau yog 62.5μm lossis 50μm, nrog OM1 ntawm 62.5μm thiab OM2/OM3/OM4/OM5 ntawm 5μm. Txawm hais tias muaj qhov sib txawv ntawm qhov loj me, nws tsis yooj yim pom rau tus neeg liab qab vim tias lawv me dua li tib neeg cov plaub hau qhov dav. Kev kuaj xyuas cov lej luam tawm ntawm cov xov fiber optic tuaj yeem pab txheeb xyuas hom.
Nrog rau kev tiv thaiv cladding, ob qho tib si hom thiab multimode fibers muaj lub cheeb ntawm 125μm.
Qhov ntev ntawm lub teeb thiab qhov chaw teeb pom kev zoo
Multimode optical fiber, nrog nws cov tub ntxhais loj, siv cov khoom siv teeb pom kev pheej yig xws li LEDs teeb thiab VCSELs ntawm 850nm thiab 1300nm wavelengths. Hauv kev sib piv, ib hom cable nrog nws cov tub ntxhais me dua, siv lasers lossis laser diodes los tsim lub teeb txhaj rau hauv lub cable, feem ntau ntawm wavelengths ntawm 1310nm thiab 1550nm.
Bandwidth
Ob hom fiber no txawv ntawm cov peev xwm bandwidth. Ib hom fiber muaj bandwidth yuav luag tsis muaj kev txwv vim nws txhawb nqa rau ib hom teeb pom kev zoo, ua rau qis dua attenuation thiab dispersion. Nws yog qhov kev xaiv zoo tshaj plaws rau kev sib txuas lus ceev ceev ntawm qhov deb ntev.
Ntawm qhov tod tes, multimode fiber tuaj yeem xa ntau hom optical, tab sis nws muaj attenuation siab dua thiab dispersion loj dua, txwv nws cov bandwidth.
Ib hom fiber ntau dua li ntau hom fiber ntau hauv kev siv bandwidth.
Kev txo qis
Ib hom fiber ntau muaj qhov attenuation qis dua, thaum multimode fiber ntau dua rau qhov attenuation.
Qhov Deb
Qhov txo qis ntawm kev txo qis ntawm cov xov hlau ib hom thiab kev sib kis ntawm hom ua rau muaj kev sib kis ntev dua li ntawm ntau hom. Multimode yog tus nqi tsim nyog tab sis txwv rau cov kev sib txuas luv luv (piv txwv li, 550m rau 1Gbps), thaum ib hom siv rau kev sib kis ntev heev.
Tus nqi
Thaum xav txog tag nrho cov nqi, peb ntu ua lub luag haujlwm tseem ceeb.
Tus nqi teeb tsa
Tus nqi teeb tsa rau ib hom fiber feem ntau pom tias siab dua li multimode cable vim nws qhov zoo. Txawm li cas los xij, qhov tseeb yog qhov sib txawv. ua tsaug rau kev tsim khoom zoo dua, txuag tau 20-30% piv rau multimode fiber. Rau cov fibers OM3 / OM4 / OM5 kim dua, ib hom tuaj yeem txuag tau txog li 50% lossis ntau dua. Txawm li cas los xij, tus nqi optical transceiver kuj tseem yuav tsum tau coj mus rau hauv tus account.
Tus nqi ntawm lub tshuab xa xov hluav taws xob
Lub transceiver optical yog ib qho tseem ceeb ntawm cov nqi hauv fiber cabling, suav txog ib feem loj, qee zaum txog li 70% ntawm tag nrho cov nqi. Cov transceiver ib hom feem ntau raug nqi 1.2 txog 6 npaug ntau dua li cov multimode. Qhov no yog vim tias ib hom siv cov laser diodes muaj zog (LD), uas kim dua, thaum cov khoom siv multimode feem ntau siv cov LEDs pheej yig dua lossis VCSELS.
Tus nqi txhim kho qhov system
Nrog rau kev nce qib sai hauv thev naus laus zis, cov kab ke cabling feem ntau xav tau kev hloov kho tshiab thiab kev nthuav dav. Ib hom fiber optic cabling muab kev nthuav dav dua, kev ywj pheej, thiab kev hloov pauv tau. Multimode cable, vim nws cov bandwidth txwv thiab lub peev xwm luv luv, tej zaum yuav muaj teeb meem kom tau raws li qhov xav tau yav tom ntej rau kev xa xov mus ntev thiab cov teeb liab ntau.
Kev txhim kho ib hom fiber optic system yooj yim dua, tsuas yog hloov qhov hloov thiab transceivers yam tsis tas yuav tso cov fiber tshiab. Qhov sib txawv, rau multimode cable, kev txhim kho los ntawm OM2 mus rau OM3 thiab tom qab ntawd mus rau OM4 rau kev sib kis ceev dua yuav raug nqi ntau dua, tshwj xeeb tshaj yog thaum hloov cov fibers pw hauv qab pem teb.
Hauv kev xaus, multimode yog tus nqi tsim nyog rau qhov kev ncua luv, thaum ib hom yog qhov zoo tagnrho rau qhov nruab nrab mus rau qhov ntev.
Xim
Kev siv xim los cim ua kom yooj yim rau kev txheeb xyuas hom cable. TlA-598C muab cov xim uas kev lag luam pom zoo kom yooj yim paub.
Multimode OM1 thiab OM2 feem ntau muaj lub tsho txiv kab ntxwv.
OM3 feem ntau muaj cov tsho xim Aqua.
OM4 feem ntau muaj cov tsho xim Aqua lossis Violet.
OM5 muaj xim ntsuab txiv qaub ntsuab.
Ib hom OS1 thiab OS2 feem ntau nrog cov tsho daj.
Daim Ntawv Thov
Ib hom cable feem ntau yog siv rau hauv cov kab ke ntev thiab cov kab ke hauv xov tooj hauv telecom, datacom, thiab CATV tes hauj lwm.
Ntawm qhov tod tes, multimode cable feem ntau yog xa mus rau hauv cov ntawv thov luv luv xws li cov chaw khaws ntaub ntawv, huab xam, kev ruaj ntseg, thiab LANs (Local Area Networks).
Xaus lus
Xaus lus, ib hom fiber cabling yog qhov zoo tagnrho rau kev xa cov ntaub ntawv mus ntev hauv cov tes hauj lwm carrier, MANs, thiab PONs. Multimode fiber cabling, ntawm qhov tod tes, feem ntau siv hauv cov tuam txhab, cov chaw khaws ntaub ntawv, thiab LANs vim nws luv dua. Qhov tseem ceeb yog xaiv hom fiber uas haum rau koj cov kev xav tau hauv network thaum xav txog tag nrho cov nqi fiber. Ua tus tsim qauv network, kev txiav txim siab no yog qhov tseem ceeb rau kev teeb tsa network zoo thiab txhim khu kev qha.
Lub sijhawm tshaj tawm: Lub Rau Hli-19-2025