Kodi wolamulira wozungulira wa fiber ndi chiani?

Kodi wolamulira wozungulira wa fiber ndi chiani?
Tanthauzo: Chipangizo chomwe chimatha kuwongolera dziko la polarirization mu ulusi wamaso. ZambiriZida za fiber optic, monga ma infferoment, zimafunikira kuthekera kowongolera chikhalidwe cha polaration mu fiber. Chifukwa chake, mitundu yosiyanasiyana ya olamulira polanda.
Mbendera ya khutu ku chiberekero chamoto
ZanomaWoyendetsa Polalizazimatheka ndikumagwada (kapena kutsitsa) ulusi wowoneka bwino kuti mupeze wowerengetsa. Kuchedwa konse (kukula kwa birefrinence) ndikofanana ndi kutalika kwa fiberi komanso mofatsa molingana ndi radius yowerama. Zimagwirizananso ndi mtundu wa fiber. Nthawi zina, ulusi wam'maso ukhoza kuvulaza kangapo ndi radius yotsika kwambiri kuti apeze kuchedwa kwa λ / 2 kapena λ / 4.

Chithunzi 1: Chovala cha khungwa polanda, zopangidwa ndi zigawo zitatu za fiber zomwe zimatha kuzungulira nkhwangwa ya zomwe zidachitika.
Nthawi zambiri, ma coil atatu amagwiritsidwa ntchito kupanga mzere, wokhala ndi coil wapakati ngati mbale yamphamvu ndi mbali ziwiri ngati mavesi. Chipinda chilichonse chimatha kuzungulira paxis ya chochitikachi ndi ulusi wotuluka. Posintha ma coil atatu, dziko la polarization la kuchuluka kwazinthu zomwe zingachitike poloration. Komabe, zomwe zimakhudza polarization zimagwirizananso ndi kuchuluka kwamphamvu. Pamwamba kwambiri mphamvu (nthawi zambiri zimachitika mu ma preses a UTRA), kuzungulira kwa polarizar polar kumachitika. Dongosolo la chinsinsi cha fiber Optic sichingakhale chochepa kwambiri, chomwe chimapangitsa kuti zikhale zotayika zowonongeka. Mtundu wina wopaka kwambiri, ndipo osaganizirana ndi osagwirizana, amagwiritsa ntchito njira yolimba (kusunga polarization) ya ulusi wamafuta osati ma coils.
OkhazikikaWoyang'anira Polar
Pali chida chomwe chimatha kupeza ma hollplates osinthika, omwe amatha kupanikizana kutalika kwa ulusi wa mavesi kufika pamlingo wina wosiyana. Pakasuntha pang'onopang'ono ndikuvutitsa ulusi wozungulira axis, ndikuwuma pamtunda winawake kuchokera ku gawo lanyumba yovutayo, dziko lililonse lingathe kupezeka. M'malo mwake, momwe momwemonso momwe babinlat imapangidwira (mtundu wambiriChida Chamathayokhala ndi maukwati awiri a birefrictive) amatha kupezeka, ngakhale mfundo zawo zogwirira ntchito ndizosiyana. Maudindo angapo osokoneza bongo amatha kugwiritsidwanso ntchito, komwe kumangokakamizidwa, osati kuzungulira kwa masinthidwe, kusintha. Kusintha kwa kupanikizika nthawi zambiri kumatheka pogwiritsa ntchito ma transalectric transducs. Chipangizochi chimathanso kutumikira monga polarizer, pomwe piezoelertc amayendetsedwa ndi maulendo osiyanasiyana kapena zizindikiro zopanda pake.