1. Chaza kafushane ukwakheka kwe- imicu yokukhanya.
A: I-fiber ye-optical inezingxenye ezimbili eziyisisekelo: i-core kanye ne-cladding eyenziwe ngezinto ezibonakalayo ezibonakalayo kanye ne-coating.
2. Yimaphi amapharamitha ayisisekelo achaza izici zokudlulisela zemigqa ye-fiber optic?
A: Kufaka phakathi ukulahlekelwa, ukusabalala, i-bandwidth, ubude besikhathi obunqunyiwe, ububanzi bensimu ye-modal, njll.
3. Iyini imbangela yokuncipha kwefayibha?
Impendulo: Ukuncipha kwefayibha kubhekisela ekunciphiseni kwamandla okukhanya phakathi kwezingxenye ezimbili zefayibha, okuhlobene nobude be-wavelength. Izimbangela eziyinhloko zokuncipha ukusabalala, ukumuncwa, kanye nokulahlekelwa ukukhanya ngenxa yezixhumi nama-splices.
4. Ichazwa kanjani i-fiber attenuation coefficient?
Impendulo: Ichazwa ukuncishiswa (dB/km) ngobude beyunithi ngayinye yefayibha efanayo esimweni esizinzile.
5. Kuyini ukulahlekelwa kokufakwa?
Impendulo: Ibhekisela ekuncipheni okubangelwa ukufakwa kwezingxenye ze-optical (njengokufakwa kwezixhumi noma ama-couplers) emgqeni wokudlulisela we-optical.
6. I-bandwidth ihlobene nani? i-fiber optics?
Impendulo: I-bandwidth ye-fibre ibhekisela ku-modulation frequency lapho i-amplitude yamandla okukhanya ingu-50% noma u-3 dB ephansi kune-amplitude ye-zero frequency emsebenzini wokudlulisa we-fibre. I-bandwidth ye-fiber optical cishe ilingana nobude bayo, futhi umkhiqizo wobude ne-bandwidth uyinto engaguquki.
Isikhathi sokuthunyelwe: Agasti-26-2022
