Ukuqaphela ukuxhumana kwe-fiber optical kusekelwe esimisweni sokubonakaliswa okuphelele kokukhanya.
Lapho ukukhanya kusakazeka phakathi nendawo ye-fiber optical, inkomba ye-refractive n1 ye-fiber core iphakeme kunaleyo ye-cladding n2, futhi ukulahlekelwa kwe-core kungaphansi kwalokho kwe-cladding, ukuze ukukhanya kuzobonakala ngokuphelele. , futhi amandla ayo okukhanya asakazwa ikakhulukazi enkabeni. Ngenxa yokukhanya okuphelele okulandelanayo, ukukhanya kungadluliswa ukusuka komunye umkhawulo kuye komunye.
Kuhlukaniswa ngemodi yokudlulisela: imodi eyodwa kanye nemodi eminingi.
Imodi eyodwa inobubanzi obumaphakathi obuncane futhi ingadlulisela kuphela amaza okukhanya emodi eyodwa.
I-Multi-mode optical fiber inobubanzi obuyingqikithi enkulu futhi ingadlulisela amaza okukhanya ngezindlela eziningi.
Singakwazi futhi ukuhlukanisa i-fiber optical yemodi eyodwa ku-multi-mode optical fiber ngombala wokubukeka.
Iningi lemicu ye-optical yemodi eyodwa inejazi eliphuzi nesixhumi esiluhlaza okwesibhakabhaka, kanti umgogodla wekhebula ungu-9.0 μm. Kunamaza amaphakathi amabili efiber yemodi eyodwa: 1310 nm kanye ne-1550 nm. I-1310 nm ivamise ukusetshenziselwa ukuhambisa amabanga amafushane, amabanga amaphakathi noma amabanga amade, kanti i-1550 nm isetshenziselwa ukuhambisa amabanga amade kanye nebanga elide kakhulu. Ibanga lokudlulisela lincike emandleni okudlulisela emojula ye-optical. Ibanga lokudluliswa kwechweba le-single-mode engu-1310 nm liyi-10 km, 30 km, 40 km, njll., kanti ibanga lokudlulisela le-1550 nm single-mode port lingu-40 km, 70 km, 100 km, njll.
Imicu yokubona enemodi eminingi iningi layo ijazi eliwolintshi/elimpunga elinezixhumi ezimnyama/ezibeige, ama-cores angu-50.0 μm nama-62.5 μm. Ubude obuphakathi be-wavelength be-multi-mode fiber ngokuvamile bungu-850 nm. Ibanga lokudlulisela le-multi-mode fiber lifushane, ngokuvamile lingaphakathi kwamamitha angu-500.
Isikhathi sokuthumela: Feb-17-2023