Iye kuzindikira kwa kuwala CHIKWANGWANI kulankhulana zachokera pa mfundo ya kuwunikira kwathunthu kuwala.
Pamene kuwala kumafalikira pakati pa kuwala kwa kuwala, refractive index n1 ya fiber core ndi yapamwamba kuposa ya cladding n2, ndipo kutayika kwapakati kumakhala kochepa kusiyana ndi kuphimba, kotero kuti kuwala kuwonetsedwe kwathunthu. , ndipo mphamvu yake yowunikira imafalitsidwa makamaka pachimake. Chifukwa cha kunyezimira kotsatizana kotsatizana, kuwala kumatha kufalikira kuchokera mbali ina kupita ku ina.
Zosankhidwa ndi njira yopatsira: single-mode ndi multi-mode.
Single-mode ili ndi m'mimba mwake yaying'ono ndipo imatha kufalitsa mafunde amtundu umodzi.
Multi-mode Optical fiber imakhala ndi mainchesi akulu akulu ndipo imatha kutumiza mafunde a kuwala m'njira zingapo.
Tithanso kusiyanitsa single-mode optical fiber kuchokera ku multimode optical fiber potengera mtundu wa mawonekedwe.
Ulusi wambiri wamtundu umodzi wokhala ndi jekete lachikasu ndi cholumikizira cha buluu, ndipo pachimake chingwe ndi 9.0 μm. Pali mafunde awiri apakati a fiber single-mode: 1310 nm ndi 1550 nm. 1310 nm nthawi zambiri amagwiritsidwa ntchito potumiza mtunda waufupi, mtunda wapakati kapena mtunda wautali, ndipo 1550 nm imagwiritsidwa ntchito kutengera mtunda wautali komanso mtunda wautali. Mtunda wotumizira umadalira mphamvu yotumizira ya module ya kuwala. Mtunda wotumizira wa doko la 1310 nm single-mode ndi 10 km, 30 km, 40 km, etc., ndipo mtunda wa 1550 nm single-mode doko ndi 40 km, 70 km, 100 km, etc.
Ulusi wowoneka bwino wamitundu yambiri nthawi zambiri amakhala jekete ya lalanje / imvi yokhala ndi zolumikizira zakuda / beige, 50.0 μm ndi 62.5 μm cores. Kutalika kwapakati kwa fiber multimode nthawi zambiri kumakhala 850 nm. Mtunda wotumizira wa fiber multimode ndi waufupi, nthawi zambiri mkati mwa 500 m.
Nthawi yotumiza: Feb-17-2023