Kusiyana pakati pa single-mode ndi multi-mode fiber optic transceivers Njira 3 zosiyanitsa ma transceivers a single-mode ndi multi-mode fiber optic transceivers.

1. Kusiyana pakati pa single-mode ndi multi-mode fiber optic transceivers

Chigawo chapakati cha ulusi wa multimode ndi 50 ~ 62.5μm, m'mimba mwake yakunja ndi 125μm, ndipo chigawo chapakati cha fiber single-mode ndi 8.3μm, ndi m'mimba mwake wakunja ndi 125μm.Mafunde ogwirira ntchito a ulusi wa kuwala ndi 0.85 μm kwa mafunde afupiafupi, 1.31 μm ndi 1.55 μm kwa mafunde aatali.Kutayika kwa fiber nthawi zambiri kumachepa ndi kutalika kwa mawonekedwe, kutayika kwa 0.85μm ndi 2.5dB/km, kutayika kwa 1.31μm ndi 0.35dB/km, ndipo kutayika kwa 1.55μm ndi 0.20dB/km, ndiko kutayika kochepa kwambiri kwa fiber, kutalika kwa 1.65 Kutayika pamwamba pa μm kumawonjezeka.Chifukwa cha kuyamwa kwa OHˉ, pali nsonga zotayika mumitundu ya 0.90 ~ 1.30μm ndi 1.34 ~ 1.52μm, ndipo magawo awiriwa sagwiritsidwa ntchito mokwanira.Kuyambira m'ma 1980, ulusi wamtundu umodzi wakhala ukugwiritsidwa ntchito, ndipo kutalika kwa 1.31 μm kwagwiritsidwa ntchito poyamba.
Multimode fiber

Multimode CHIKWANGWANI: Chapakati galasi pachimake ndi thicker (50 kapena 62.5μm), amene akhoza kufalitsa kuwala mu modes angapo.Koma kubalalitsidwa kwake kwapakati ndi kwakukulu, komwe kumachepetsa pafupipafupi kutumizira ma siginecha a digito, ndipo kudzakhala koopsa kwambiri pakuwonjezeka kwa mtunda.Mwachitsanzo: 600MB/KM CHIKWANGWANI chili ndi 300MB bandwidth pa 2KM.Choncho, mtunda wa multimode CHIKWANGWANI kufala ndi waufupi, zambiri makilomita ochepa okha.

single mode fiber
Ulusi wamtundu umodzi (Single Mode Fiber): Pakatikati pagalasi pachimake ndi choonda kwambiri (pakati pake ndi 9 kapena 10 μm), ndipo mawonekedwe amodzi okha ndi omwe amatha kufalikira.Choncho, kubalalitsidwa kwake kwa intermodal ndi kochepa kwambiri, komwe kuli koyenera kulankhulana mtunda wautali, koma palinso kupezeka kwakuthupi ndi kufalikira kwa waveguide, kotero kuti mawonekedwe amtundu umodzi ali ndi zofunikira zapamwamba pamtundu wa spectral ndi kukhazikika kwa gwero la kuwala, ndiko kuti. , makulidwe a spectral ayenera kukhala opapatiza komanso okhazikika.Khalani wabwino.Pambuyo pake, zinapezeka kuti pamtunda wa 1.31 μm, kufalikira kwa zinthu ndi kufalikira kwa waveguide kwa fiber single-mode ndi zabwino ndi zoipa, ndipo kukula kwake kuli chimodzimodzi.Izi zikutanthauza kuti pamtunda wa 1.31 μm, kufalikira kwamtundu umodzi wa fiber ndi zero.Kuchokera pamakhalidwe otayika a ulusi, 1.31μm ndi zenera lochepa la ulusi.Mwanjira imeneyi, dera la 1.31μm wavelength lakhala zenera loyenera logwirira ntchito pazolumikizana ndi fiber optical, komanso ndilo gulu lalikulu la machitidwe ogwiritsira ntchito optical fiber communication.Magawo akuluakulu a 1.31μm wamba wamtundu umodzi amatsimikiziridwa ndi International Telecommunication Union ITU-T mu malingaliro a G652, kotero fiber iyi imatchedwanso G652 fiber.

Kodi matekinoloje a single-mode ndi multimode amapangidwa nthawi imodzi?Kodi ndizowona kuti zomwe zatsogola kwambiri komanso njira zambiri ndizotsogola kwambiri?Kawirikawiri, ma multi-mode amagwiritsidwa ntchito pamtunda waufupi, ndipo njira imodzi yokha imagwiritsidwa ntchito pamtunda wautali, chifukwa kutumiza ndi kulandira ulusi wamitundu yambiri Chipangizocho ndi chotsika mtengo kwambiri kuposa njira imodzi.

Ulusi wamtundu umodzi umagwiritsidwa ntchito potumiza mtunda wautali, ndipo ulusi wamitundu yambiri umagwiritsidwa ntchito potumiza deta m'nyumba.Njira imodzi yokha ndiyo yomwe ingagwiritsidwe ntchito mtunda wautali, koma ma multi-mode sagwiritsidwa ntchito pofalitsa deta m'nyumba.

Kaya ma fiber optical omwe amagwiritsidwa ntchito m'maseva ndi zipangizo zosungiramo zinthu zimakhala zamtundu umodzi kapena zamitundu yambiri Ambiri amagwiritsa ntchito njira zambiri, chifukwa ndimangokhalira kulankhulana ndi optical fibers ndipo sindimamveka bwino pankhaniyi.

Kodi ulusi wowala uyenera kugwiritsidwa ntchito pawiri, ndipo kodi pali zida zilizonse monga zosinthira ma siginolo amtundu wa single-hole single-mode?

Kodi nsonga ya kuwala iyenera kugwiritsidwa ntchito pawiri?Inde, mu theka lachiwiri la funsolo, mukutanthauza kutumiza ndi kulandira kuwala pa chingwe chimodzi cha kuwala?Izi ndizotheka.China Telecom's 1600G backbone optical fiber network ili chonchi.

Kusiyana kwakukulu pakati pa single-mode fiber optic transceivers ndi multi-mode fiber optic transceivers ndi mtunda wotumizira.Multi-mode Optical fiber transceiver ndi ma multi-node ndi ma doko ambiri otumizira ma doko mumayendedwe ogwirira ntchito, kotero kufalikira kwa mtunda waufupi kumakhala kochepa, koma ndikosavuta, ndipo sikofunikira kugwiritsa ntchito kupanga intranet yakumaloko. .Single CHIKWANGWANI ndi limodzi mfundo kufala, choncho ndi oyenera kufala kwa mizere thunthu mtunda wautali ndi kupanga kumanga maukonde cross-metropolitan dera.

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2. Momwe mungasiyanitsire ma transceivers a single-mode ndi multi-mode fiber optic

Nthawi zina, tifunika kutsimikizira mtundu wa fiber optic transceiver, ndiye momwe tingadziwire ngati fiber optic transceiver ndi single-mode kapena multi-mode?

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1. Siyanitsani ndi mutu wa dazi, chotsani chipewa cha fiber optic transceiver bald mutu wa fumbi, ndipo yang'anani mtundu wa zigawo za mawonekedwe a mutu wa dazi.Mbali yamkati ya mawonekedwe a single-mode TX ndi RX imakutidwa ndi zoumba zoyera, ndipo mawonekedwe amitundu yambiri ndi ofiirira.

2. Kusiyanitsa ndi chitsanzo: kawirikawiri onani ngati pali S ndi M mu chitsanzo, S amatanthauza single mode, M amatanthauza multi-mode.

3. Ngati idayikidwa ndikugwiritsidwa ntchito, mutha kuwona mtundu wa fiber jumper, lalanje ndimitundu yambiri, yachikasu ndi single-mode