Ubumenyi bw'ibanze bwa fibre optique

1. Ni gute insinga z'urumuri zitanga urumuri?

Gushyira mu bikorwa itumanaho binyuze mu fibre optique Ishingiye ku ihame ryo kugaragaza urumuri rwose.
Iyo urumuri rukwirakwira rugana hagati muri fibre, igipimo cya refractive n1 cy’inyuma ya fibre kiba kinini kuruta icya cladding n2, kandi igihombo cy’inyuma kiba gito ugereranyije n’icya cladding, bityo urumuri ruzanyura mu mucyo w’imbere kandi ingufu z’urumuri rwarwo zoherezwa ahanini mu mutima. Bitewe n’ishusho rusange ry’imbere rikurikirana, urumuri rushobora koherezwa kuva ku mpera imwe ujya ku yindi.

2. Ni gute imigozi y'urumuri ishyirwa mu byiciro?

Ishyirwa mu byiciro hakurikijwe uburyo bwo kohereza amakuru: fibre y’uburyo bumwe n’iy’uburyo bwinshi.
Fibre y’uburyo bumwe ifite umurambararo muto w’imbere kandi ishobora kohereza imiraba y’urumuri mu buryo bumwe gusa.
Fibre ya Multimode ifite umurambararo munini w'imbere kandi ishobora kohereza urumuri mu buryo butandukanye.
Ushobora kandi gutandukanya fibre y’uburyo bumwe n’iy’uburyo bwinshi ukurikije ibara ry’uko igaragara:
Igice kinini cya insinga z'amaso Imigozi y'uburyo bumwe ifite ikoti ry'umuhondo n'umuhondo w'ubururu, kandi insinga y'umugozi ni 9.0 μm. Hari uburebure bubiri bw'umurambararo bw'imigozi y'uburyo bumwe: 1310 nm na 1550 nm. 1310 nm ikoreshwa muri rusange mu kohereza ubutumwa bugufi, hagati, cyangwa kure, na 1550 nm mu kohereza ubutumwa bugufi n'uburebure bwinshi. Intera yo kohereza ubutumwa iterwa n'imbaraga zo kohereza ubutumwa bw'ikoranabuhanga. Intera yo kohereza ubutumwa bw'umurongo umwe wa 1310 nm ni 10 km, 30 km, 40 km, nibindi, kandi intera yo kohereza ubutumwa bw'umurongo umwe wa 1550 nm ni 40 km, 70 km, 100 km, nibindi.

Imigozi ya optique ya multimode ikunze kuba ifite agapira k'umuhondo/ikijuju gafite imiyoboro y'umukara/beige, kandi uburebure bw'ibanze ni 50.0 μm na 62.5 μm. Ubusanzwe uburebure bw'umugozi wa multimode ni 850 nm. Intera yo kohereza ya multimode optique ni ngufi, muri rusange iri hagati ya metero 500.

Gushyira mu byiciro hakurikijwe amahame mpuzamahanga ya ITU-T: G.651, G.652, G.653, G.654, G.655, G.656, G.657.