Amakhebuli Optical: izinzuzo kuka nebubi

Esikhathini yoma, ke yimfashini kakhulu abe ukukhanya ebusuku egunjini lokulala, ehlanganisa esisekelweni hemispherical futhi athé ke waveguides uvumelanise. Kulesi ukwakhiwa ebumnyameni ukukhanya dim Babechichima ngesimo amachashazi ezincane, burning at ichopho mncane Imicu yotshani ayevumela. Lokhu ngempela into enhle senziwa kusuka imfucumfucu of uhlobo olusha kolwazi iziqondiso. Qamba kubo - izintambo optic (aka - isifaki, okusho fiber-optic zokuxhumana imigqa).

FOL isimiso ukusebenza

Noma yimuphi umqhubi kagesi has a ukumelana hhayi kuphela esebenzayo, kodwa futhi esisheshayo (capacitive futhi exhasa). Lezi nemingcele ngokomzimba axhomeke ububanzi we wire, igagasi yayo izakhiwo, futhi yebo ubude umugqa ohlanganisa isignali lomthumeli nge idivaysi eyamukelayo. Ikakhulukazi nozwelo resistive isiteshi okusezingeni eliphezulu imigudu yokuxhumana izinga. Fiber-optic ikhebula akanawo lo ethile, kuba ukulahlekelwa mancane kakhulu kunalawo e babashayeli ezivamile, ngoba yenethiwekhi ulwazi amandla okukhanya. isenzo isiteshi isimiso sicacile futhi elula. Ngezinye isignali isixhumanisi zolimo, aguqulwa kusuka kagesi optical. Ngesikhathi esidayisa kukhona demodulation yayo, futhi lingena idivayisi umamukeli-Imininingwane has a evamile yamandla aphindeke kabili ye pulses.

Izinzuzo Fibre Channel

Ngaphezu ukumelana kokuthikanyezwa, futhi nokuthungatha attenuation, izintambo optical kunezimo nezinye abalulekile kakhulu. Lapho ukudluliswa kolwazi eziteshini fibre lula kakhulu ukuyigcina iyimfihlo, ngoba cishe engenakwenzeka ukuxhuma them ngasese. Enye inzuzo yokuhamba kwesikebhe le ndlela yokudlulisa i kuyinto kwezomnotho. Copper - i metal ezibizayo nombala, e izinto waveguide ngenani ethengekayo. Ikhebula optical Yenziwe asebenza ngebhethri noma ekhethekile polymer izingoma (fluoro-aluminate, noma fluoro-zirconate), okuyinto futhi (isithunzi wesithathu) ulula kakhulu kunalokho metal izintambo ukuthi nawo kumele bahlolwe.

amaphutha optical zokuxhumana

Yebo, izintambo optical, kanye konke kuleli zwe, ayikho ngaphandle nemiphumela ethile engathandeki.

Okokuqala, ukubuyisela ukuxhumana wesifunda evulekile kudinga esikhundleni yonke indawo ezilimele, ayikwazi waveguides spliced ngaleyo ndlela sina kwandisa izindleko ukulungiswa.

Okwesibili, umsebenzi ukufakwa akulona izindleko ezishibhile. Ukuze ukuqaliswa zabo kudingeka ngokunembile imishini, futhi kuyabiza. Futhi ladzingekako eside, futhi badinga futhi ukhokhe ngokufanele.

Okwesithathu, ukuba wathi isignali Converter ngesikhathi imigqa input bese okukhipha, kanye izixhumi (amadivayisi ukunikeza usuke), izimfuno eliphezulu kakhulu ukuthembeka, ukulahlekelwa optical ukunemba. Lokho izinga kuwufanele imali, akekho okudingeka ukuchaza.

Ukuxhumana esizayo

Noma kunjalo, izinzuzo ngaphezulu. amakhebuli Optical angadlulisela isignali ye-broadband, okuyinto kakhulu kwandisa ijubane bashintshisane ngolwazi (kulinganiswa kakade terabits ngomzuzwana). Uma lokhu attenuation incane kakhulu (at inamandla ka 1.55 microns, kuba 0,22 kuphela dB / km). Ngaphezu kwalokho, ikhono amaza okukhanya ezihambelayo oluyi (nge nokwehlukana ezingafani) e olulodwa fibre optic umqhubi kwandisa amathuba. Ukuthuthukiswa yabo iyaqhubeka.