Mitundu yamagetsi yokha ndi kusiyana kwake kuchokera ku multimode fiber

Pomwe pakufunika kusinthitsa deta kuchokera kumalo akutali kupita kumalo ena, mochulukira, mmalo mwa waya wamkuwa wamtengo wapatali, kasitomala amapatsidwa chingwe chowonekera ndi makontrakitala . Tidzakambirana za teknolojia yamakono lero.

Mzere wothandizira ma fiber (FOCL) amagwira ntchito motsatira njira yotumizira kuwala kotulukira mumsewu wapadera wopangidwa ndi galasi yoyera kwambiri ya quartz. Makina a magetsi amagwiritsidwa ntchito kuti azitha kusintha, zomwe zimapangitsa kuti kuwala kumatulutsa kuwala ndikuwapititsa ku chingwe. Pamapeto pake, wolandirayo amalandira kuwala kwake ndipo amawutumizanso ku magetsi opangira magetsi. Popeza kuti njira yonseyi ikuyendetsedwa ndi magetsi ndipo ndi kusintha kwa digito, zosokoneza ndizochepa.

Kuti mupange mizere yotereyi, gwiritsani ntchito mapepala apadera - fiber ndi ma multimode fiber.

Mizere yolumikiza yapatsidwa kugawa kwakukulu kokha osati chifukwa cha kusasokonezeka panthawi yopereka mauthenga. Zina mwazinthu zosatsutsika za teknolojiyi ndizomwe zimakhala zochepa kwambiri, zotsekemera kwambiri, zosakanikirana kwambiri ndi makina onse a magetsi, makilomita makumi khumi. Ubwino waukulu ndiutumiki wautali wautumiki, womwe uli ndi zaka 25 zokha.

Mitundu ya fiber

Mukamayika mizere yolumikizana pogwiritsa ntchito mizere yowonjezereka, multimode kapena fiber-mode fiber yasankhidwa.

Kodi chingwechi chimaphatikizapo chiyani? Chimake cha fiber yamakono ndi quartz, galasi lopanda mphamvu, lomwe limatulutsa kuwala komweko. Ndipo sichikuthira, chifukwa chiwerengero cha chigoba chimakhala chocheperapo kusiyana ndi chimzake, choncho kuwala kwawunikira kumapangidwa kuchokera ku makoma omwe mkati mwake.

Mitengo ya multimode ndi yabwino chifukwa ikhoza kuyambitsa miyeso yambirimbiri, yomwe imayambitsidwa pazigawo zosiyanasiyana. Njira iliyonseyi imakhala ndi malingaliro ake ndipo, motero, nthawi yofalitsa yapadera.

Chosavuta chachikulu cha mtundu uwu wa fiber ndi kufalikira kwa modal, komwe kumachepetseratu chiwongolero ndi kuchepetsa kutalika kwa mzere. Kutumiza kwa mizere yolumikizana multimode nthawi zambiri kumakhala ndi makilomita asanu.

Vuto lochepetsera kufalikira kwa mawonekedwe limathetsedwa ndi chingwe chokhala ndi gradient refractive index of core. Muzitsulo zoterezi, mosiyana ndi zomwe mungasankhe, zizindikiro za refractive zimachepetsedwa kuchokera pakati pa chigamba cha chipolopolo, zomwe zimapangitsa kusintha kwakukulu mu magawo a chizindikiro chopatsirana.

Mitsempha yamodzi yokhayo yapangidwa kuchokera ku vuto la kudutsa njira yoyankhulirana imodzi yokha (yaikulu). Njira imeneyi imapindulitsa zambiri. Zizindikiro zina za chingwe chimodzi chokha chimakhala chabwino kwambiri kuposa chingwe cha multimode. Ichi ndi chinthu chofunika kwambiri chomwe chimakhudza osankha a injini poyang'ana choyamba poika mizere yatsopano. Ndipotu, mitsempha imodzi yokha imayimitsa mbendera pamtunda wa 0.25db pa kilomita, kugawidwa kwakukulu mmenemo kuli kochepa kwambiri, ndipo kuthamanga kwakukulu kumapangitsa kufotokozera momveka bwino komanso mofulumira kwa deta popanda kusokonezeka.

Koma apo pali supuni ya phula mu mbiya iyi ya uchi. Mtundu uwu ndi wokwera mtengo kuposa multimode fibers. Popeza kukula kwa chingwe cha lightguide mu chingwe chimodzi chokha ndi chochepa kwambiri, kuyambitsa ma radiation mu chingwe chotero sikophweka ndipo kumafuna kufufuza mosamalitsa panthawi yopuma. Mapeto ogwirizanitsa a mizereyi amawononga zambiri kuposa mapeto a mizere multimode. Kuonjezerapo, chifukwa cha kuphweka kwa dothi loyera m'kati mwake, makompyutawa amakhala ndi ma radiator osavuta komanso otchipa, omwe amapangidwanso ndi makampani ambiri okhudzidwa.