iye kuona kwe optical fiber kutaurirana kunobva pamusimboti wekuratidzira kuzere kwechiedza.
Kana chiedza chichipararira pakati pe optical fiber, iyo refractive index n1 ye fiber core yakakwirira kudarika iyo yekuvhara n2, uye kurasikirwa kwepakati kwakaderera kudarika iyo yekuvhara, kuitira kuti chiedza chizoonekwa zvachose. , uye simba rayo rechiedza rinonyanya kuparadzirwa mukatikati. Nekuda kwekuratidzwa kuzere kunotevedzana, chiedza chinogona kufambiswa kubva kune rumwe rutivi kuenda kune rumwe.
Yakakamurwa neyekutapurirana modhi: single-modhi uye akawanda-modhi.
Imwe-modhi ine diki dhayamita yepakati uye inogona chete kufambisa masaisai emwenje eimwe modhi.
Multi-mode optical fiber ine yakakura dhayamita yepakati uye inogona kufambisa masaisai emwenje mune dzakawanda modes.
Isu tinogona zvakare kusiyanisa imwe-modhi optical fiber kubva kune akawanda-modhi optical fiber neruvara rwechitarisiko.
Mazhinji single-mode optical fibers ane jekete yero uye yebhuruu yekubatanidza, uye iyo tambo yepakati i9.0 μm. Kune maviri epakati wavelengths e single-modhi fiber: 1310 nm uye 1550 nm. 1310 nm inowanzoshandiswa kutapurirana chinhambwe-chinhambwe, chepakati-chinhambwe kana kureba, uye 1550 nm inoshandiswa kuendesa kure-kure uye kwekupedzisira-kureba. Iyo kureba kwekufambisa kunoenderana nesimba rekufambisa reiyo optical module. Nharaunda yekufambisa ye1310 nm single-mode port ndeye 10 km, 30 km, 40 km, nezvimwewo, uye kureba kwekufambisa kwe1550 nm single-mode port ndeye 40 km, 70 km, 100 km, nezvimwe.
Multi-mode optical fibers anonyanya kuve orenji / grey bhachi rine dema/beige zvibatanidza, 50.0 μm uye 62.5 μm cores. Iyo yepakati wavelength yeakawanda-modhi fiber inowanzo 850 nm. Iyo yekufambisa chinhambwe ye-multi-mode fiber ipfupi, kazhinji mukati me500 m.
Nguva yekutumira: Feb-17-2023