1. Bambanci tsakanin guda-yanayin da Multi-mode fiber optic transceivers
A core diamita na multimode fiber ne 50 ~ 62.5μm, da m diamita na cladding ne 125μm, da core diamita na guda-mode fiber ne 8.3μm, da kuma m diamita na cladding ne 125μm.Tsawon tsayin aiki na filaye na gani shine 0.85 μm don gajeriyar raƙuman raƙuman ruwa, 1.31 μm da 1.55 μm don tsayin raƙuman ruwa.Asarar fiber gabaɗaya yana raguwa tare da tsayin tsayi, asarar 0.85μm shine 2.5dB/km, asarar 1.31μm shine 0.35dB/km, kuma asarar 1.55μm shine 0.20dB/km, wanda shine mafi ƙarancin asarar fiber, tsawon 1.65 Asarar sama da μm yana ƙaruwa.Saboda tasirin sha na OHˉ, akwai kololuwar asara a cikin kewayon 0.90 ~ 1.30μm da 1.34 ~ 1.52μm, kuma waɗannan jeri biyu ba su cika amfani da su ba.Tun daga shekarun 1980s, ana son amfani da zaruruwan yanayi guda ɗaya, kuma an fara amfani da dogon zangon 1.31 μm.
Multimode fiber
Multimode fiber: Gilashin tsakiya ya fi kauri (50 ko 62.5μm), wanda zai iya watsa haske ta hanyoyi da yawa.Amma tarwatsawar tsaka-tsakin sa yana da girma, wanda ke iyakance yawan watsa siginar dijital, kuma zai fi tsanani tare da karuwar nesa.Misali: 600MB/KM fiber yana da bandwidth 300MB kawai a 2KM.Saboda haka, nisan watsa fiber multimode yana da ɗan gajeren gajere, gabaɗaya kawai 'yan kilomita kaɗan.
guda yanayin fiber
Fiber-mode-Single (Single Mode Fiber): Gilashin tsakiya yana da bakin ciki sosai (madaidaicin diamita gabaɗaya 9 ko 10 μm), kuma yanayin haske ɗaya ne kawai ake iya watsawa.Saboda haka, ta intermodal watsawa kadan ne, wanda ya dace da sadarwa mai nisa, amma akwai kuma tarwatsa kayan aiki da watsawar waveguide, don haka fiber-mode fiber yana da buƙatu mafi girma akan nisa da kwanciyar hankali na tushen haske, wato. , Nisa mai ban mamaki ya kamata ya zama kunkuntar kuma barga.Yi kyau.Daga baya, an gano cewa a cikin nisa na 1.31 μm, tarwatsa kayan abu da watsawar igiyar igiyar igiya guda ɗaya suna da kyau da kuma korau, kuma girman su daidai ne.Wannan yana nufin cewa a tsawon 1.31 μm, jimillar tarwatsewar fiber yanayin guda ɗaya ba shi da sifili.Daga halayen hasara na fiber, 1.31μm shine kawai taga ƙarancin hasara na fiber.Ta wannan hanyar, yanki mai tsayi na 1.31μm ya zama kyakkyawan taga mai aiki don sadarwar fiber na gani, kuma shine babban rukunin aiki na tsarin sadarwar fiber na gani mai amfani.Babban sigogi na 1.31μm na al'ada guda-yanayin fiber an ƙaddara ta Ƙungiyar Sadarwar Sadarwa ta Duniya ITU-T a cikin shawarwarin G652, don haka ana kiran wannan fiber G652 fiber.
An samar da fasahar yanayi guda ɗaya da nau'i-nau'i iri ɗaya a lokaci guda?Shin gaskiya ne cewa wanda ya fi ci gaba kuma multi-mode ya fi ci gaba?Gabaɗaya, ana amfani da nau'i-nau'i masu yawa don ɗan gajeren nisa, kuma yanayin-ɗaya ne kawai ake amfani da shi don nisa mai nisa, saboda watsawa da karɓar filaye masu yawa Na'urar tana da rahusa fiye da yanayin guda ɗaya.
Ana amfani da fiber-mode fiber don watsa nisa mai nisa, kuma ana amfani da fiber-mode fiber don watsa bayanai na cikin gida.Yanayin guda ɗaya kawai za a iya amfani da shi don nisa, amma nau'i-nau'i da yawa ba lallai ba ne a yi amfani da shi don watsa bayanai na cikin gida.
Ko fiber na gani da ake amfani da su a cikin sabar da na'urorin ajiya sune yanayin guda ɗaya ko yanayin multi-mode Yawancinsu suna amfani da yanayin multi-mode, saboda kawai na tsunduma cikin fiber na gani na sadarwa ne kawai kuma ban bayyana sosai game da wannan batu ba.
Shin dole ne a yi amfani da filaye na gani a nau'i-nau'i, kuma akwai kayan aiki irin su masu canza siginar fiber mai ramuka guda ɗaya?
Shin dole ne a yi amfani da fiber na gani biyu?Ee, a cikin rabin na biyu na tambayar, kuna nufin watsawa da karɓar haske akan fiber na gani ɗaya?Wannan yana yiwuwa.China Telecom na 1600G na gani fiber cibiyar sadarwa kamar haka.
Bambanci mafi mahimmanci tsakanin nau'in fiber optic transceivers guda-yanayin da multi-mode fiber optic transceivers shine nisan watsawa.Mai ɗaukar fiber na gani mai nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau’in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau’in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau’in nau'in nau'in nau'in nau'in nau’in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau’in nau’in nau’in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in watsawa ya watsa siginar watsawa a cikin yanayin aiki, don haka watsa siginar siginar ɗan gajeren gajere ne, amma ya fi dacewa, kuma ba lallai ba ne a yi amfani da ginin intranet na gida. .Fiber guda ɗaya shine watsa kumburi guda ɗaya, don haka ya dace da watsa layin gangar jikin mai nisa kuma ya ƙunshi ginin cibiyar sadarwa na yanki na birni.
;
2. Yadda za a rarrabe guda-mode da Multi-mode fiber optic transceivers
Wani lokaci, muna buƙatar tabbatar da nau'in transceiver na fiber optic, don haka ta yaya za a tantance ko transceiver na fiber optic shine yanayin guda ɗaya ko Multi-mode?
;
1. Bambance shi da kan baƙar fata, cire haɗin fiber optic transceiver bald head ƙura, sa'an nan kuma duba launin abubuwan abubuwan da ke cikin baƙar fata.Gefen ciki na yanayin musaya na TX da RX mai-ɗaya an lulluɓe shi da fararen yumbura, kuma yanayin yanayin yanayi mai launin ruwan kasa.
2. Bambance da ƙirar: gabaɗaya duba ko akwai S da M a cikin ƙirar, S yana nufin yanayin guda ɗaya, M yana nufin Multi-mode.
3. Idan an shigar da shi kuma an yi amfani da shi, za ku iya ganin launi na jumper na fiber, orange yana da nau'i-nau'i, rawaya yana da yanayin guda ɗaya.
Lokacin aikawa: Satumba-01-2022