Single mode CHIKWANGWANI: chapakati galasi pachimake ndi woonda kwambiri (pachimake m'mimba mwake nthawi zambiri 9 kapena 10) μ m), njira imodzi yokha ya kuwala CHIKWANGWANI angafalitse.
Kubalalika kwa intermodal kwa fiber single-mode ndikochepa kwambiri, komwe kuli koyenera kulumikizana kwakutali, koma palinso kubalalitsidwa kwakuthupi ndi kufalikira kwa waveguide.Mwanjira iyi, ulusi wamtundu umodzi uli ndi zofunika kwambiri pakukula kwa mawonekedwe ndi kukhazikika kwa gwero la kuwala, ndiko kuti, mawonekedwe owoneka bwino ayenera kukhala opapatiza ndipo kukhazikika kuyenera kukhala kwabwino.
Pambuyo pake, zinapezeka kuti pa 1.31 μ Pa M wavelength, kufalikira kwa zinthu ndi kufalikira kwa waveguide kwa fiber single-mode ndi zabwino ndi zoipa, ndipo kukula kwake kuli chimodzimodzi.Chifukwa chake, dera la 1.31 μ M lavelength lakhala zenera labwino kwambiri lothandizira kulumikizana kwa ulusi wa kuwala, komanso ndilo gulu lalikulu la optical fiber communication system 1.31μM magawo akuluakulu a fiber single-mode amatsimikiziridwa ndi ITU-T. mu malingaliro a G652, kotero mtundu uwu wa fiber umatchedwanso G652 fiber.
Poyerekeza ndi fiber multimode, fiber single-mode imatha kuthandizira mtunda wautali wotumizira.Mu 100Mbps Efaneti ndi 1G gigabit maukonde, single-mode CHIKWANGWANI angathandizire kufala mtunda woposa 5000m.
Kuchokera pakuwona mtengo, chifukwa transceiver optical ndi okwera mtengo kwambiri, mtengo wogwiritsira ntchito single-mode optical fiber udzakhala wapamwamba kuposa wa multi-mode optical fiber cable.
Kugawa kwa index refractive ndikofanana ndi ulusi wosinthika, ndipo mainchesi ake ndi 8 ~ 10 μ m.Kuwala kumafalikira motsatira mbali yapakati ya fiber core mu mawonekedwe a mzere.Chifukwa mtundu uwu wa ulusi ukhoza kufalitsa njira imodzi yokha (kuwonongeka kwa mayiko awiri a polarization), amatchedwa single-mode fiber, ndipo kupotoza kwake kumakhala kochepa kwambiri.
Kufotokozera kwa "single-mode optical fiber" m'mabuku ophunzirira: nthawi zambiri, V ikakhala yochepera 2.405, chingwe chimodzi chokha chimadutsa mu fiber optical, motero amatchedwa single-mode optical fiber.Pakatikati pake ndi woonda kwambiri, pafupifupi 8-10 microns, ndipo kubalalitsidwa kwa mode ndikochepa kwambiri.Chinthu chachikulu chomwe chimakhudza kufalikira kwa bandi m'lifupi mwa kuwala kwa fiber ndi kubalalitsidwa kosiyanasiyana, ndipo kufalikira kwamachitidwe ndikofunikira kwambiri, ndipo kubalalitsidwa kwa single-mode kuwala CHIKWANGWANI ndikochepa, Chifukwa chake, kuwala kumatha kufalikira mtunda wautali pafupipafupi gulu.
Chingwe cha single-mode Optical fiber chili ndi mainchesi apakati a 10 microns, omwe amatha kuloleza kufalikira kwamtundu umodzi ndikuchepetsa malire a bandwidth ndi kubalalitsidwa kwa modal.Komabe, chifukwa cha mainchesi ang'onoang'ono a single-mode optical fiber, ndizovuta kuwongolera kufalikira kwa mtengo, chifukwa chake pamafunika laser yokwera mtengo kwambiri ngati gwero la kuwala, ndipo cholepheretsa chachikulu cha single-mode Optical fiber chili mu kubalalitsidwa kwa zinthu, Single. mode kuwala chingwe makamaka amagwiritsa laser kupeza mkulu bandiwifi.Chifukwa LED imatulutsa kuwala kochulukirapo kokhala ndi bandwidth yosiyana, kufunikira kwa kubalalitsidwa kwa zinthu ndikofunikira kwambiri.
Poyerekeza ndi fiber multimode, fiber single-mode imatha kuthandizira mtunda wautali wotumizira.Mu 100Mbps Efaneti ndi 1G gigabit maukonde, single-mode CHIKWANGWANI angathandizire kufala mtunda woposa 5000m.
Kuchokera pakuwona mtengo, popeza transceiver optical ndi okwera mtengo kwambiri, mtengo wogwiritsira ntchito single-mode optical fiber udzakhala wapamwamba kuposa wa multi-mode optical fiber cable.
Single mode fiber (SMF)
Poyerekeza ndi ulusi wa multimode, chigawo chapakati cha fiber single-mode chimakhala chochepa kwambiri, chokhacho ndi 8 ~ 10 μm.Ulusi wamtundu umodzi umagwiritsidwa ntchito mu 1.3 ~ 1.6 μ M'dera la kutalika kwa M, kupyolera mu mapangidwe oyenera a refractive index kugawa kwa fiber optical ndi kusankha zipangizo zoyera kwambiri kuti akonze zophimba 7 nthawi zazikulu kuposa pachimake, kutayika kochepa ndi kubalalitsidwa kochepa kungapezeke nthawi imodzi mu gulu ili.
Single mode optical fiber imagwiritsidwa ntchito mtunda wautali komanso wapamwamba kwambiri wolumikizana ndi fiber fiber, optical fiber local area network ndi masensa osiyanasiyana opangira ma fiber.
Nthawi yotumiza: Mar-08-2022