Nigute ushobora kugerageza fibre optique?

Hamwe niterambere ryurusobe hamwe niterambere ryikoranabuhanga, inganda nyinshi za fibre optique zagaragaye kumasoko, zigerageza gufata umugabane wisi.Kubera ko aba bakora ibicuruzwa bakora ibice bitandukanye, intego yabo ni ugukora ibice byujuje ubuziranenge kandi bihuza kugirango abakiriya bashobore kuvanga ibice bitandukanye biva mubikorwa bitandukanye.Ibi ahanini biterwa nimpungenge zamafaranga, kuko ibigo byinshi byamakuru bishakisha ibisubizo bidahenze kugirango bishyire mubikorwa murusobe rwabo.

Amashanyarazi mezani igice cyingenzi cyimiyoboro ya fibre optique.Barimo bahindura kandi batwara fibre optique binyuze muriyo.Zigizwe n'ibice bibiri by'ingenzi: kohereza no kwakira.Mugihe cyo kubungabunga no gukemura ibibazo, ni ngombwa gushobora guhanura, kugerageza, no kuvumbura aho ibibazo bishobora kuba cyangwa byabereye.Rimwe na rimwe, niba ihuriro ridahuye nigipimo cyateganijwe cyo kwibeshya, ntidushobora kumenya ukireba igice cyihuza gitera ikibazo.Birashobora kuba umugozi, transceiver, uwakira cyangwa byombi.Muri rusange, ibisobanuro bigomba kwemeza ko uwakiriye wese azakorana neza nogukwirakwiza ibintu bibi cyane, naho ubundi, imiyoboro yose izatanga ikimenyetso cyubwiza buhagije bwo gutorwa nuwakiriye nabi cyane.Ibipimo bibi cyane ni ibintu bigoye gusobanura.Nyamara, mubisanzwe hariho intambwe enye zo kugerageza kohereza no kwakira ibice bya transceiver.

Iyo ugerageza igice cyohereza, kugerageza birimo kugerageza uburebure bwumurongo nuburyo imiterere yikimenyetso gisohoka.Hariho intambwe ebyiri zo kugerageza kohereza:

Umucyo usohoka wa transmitter ugomba kugeragezwa hifashishijwe ibipimo byinshi byujuje ubuziranenge, nko gupima mask, optique ya modulation amplitude (OMA), hamwe n’ikigereranyo cyo kuzimira.Gerageza ukoresheje igishushanyo mbonera cyamaso, uburyo busanzwe bwo kureba imiyoboro ya transmitter no gutanga amakuru kubyerekeranye nibikorwa rusange.Igishushanyo cyijisho, ibyegeranyo byose byamakuru byashizwe hejuru kumurongo umwe, mubisanzwe bitarenze ibihe bibiri bito.Igice cyo kwakira ikizamini nigice kinini cyibikorwa, ariko hariho nintambwe ebyiri zipimisha:

Igice cya mbere cyikizamini nukwemeza ko uwakiriye ashobora gufata ibimenyetso bitameze neza akabihindura.Ibi bikorwa mu kohereza urumuri rwiza kubakira.Kubera ko iki ari ikimenyetso cyiza, kigomba guhindurwa hifashishijwe ibipimo bya jitter na optique.Ikindi gice cyikizamini nukugerageza kwinjiza amashanyarazi kubakira.Muri iyi ntambwe, hagomba gukorwa ubwoko butatu bwibizamini: gupima mask yijisho kugirango harebwe ijisho rinini bihagije, gupima jitter kugirango ugerageze ubwoko bumwebumwe bwamafaranga ya jitter hamwe no gupima kwihanganira jitter, no kugerageza ubushobozi bwabakiriya bwo gukurikirana jitter muri yo muri Umuyoboro mugari.