1. I-Multimode fiber
Xa ubungakanani bejiyometri yosinga (ikakhulu umbindi wedayamitha d1) inkulu kunobude bokukhanya (malunga ne-1 µm), kuya kubakho iimowudi okanye amakhulu eendlela zokusasaza kusinga. Iindlela ezahlukeneyo zokusasaza zinezantya ezahlukeneyo kunye nezigaba, okukhokelela ekulibazisekeni kwexesha kunye nokwandiswa kweepulses zamehlo emva kokuhanjiswa komgama omde. Le nto ibizwa ngokuba yi-modal dispersion (ekwaziwa ngokuba yi-intermodal dispersion) yei-fiber optical.
I-Modal dispersion iya kucutha i-bandwidth yefiber ye-multimode kwaye inciphise umthamo wayo wokuhambisa, ngoko i-multimode fiber ifanelekile kunxibelelwano oluncinci lwe-fiber optic.
Isalathiso sesalathisi esihlaziyiweyo sefiber ye-multimode ubukhulu becala lusasazo lweparabolic, oko kukuthi, i-graded refractive index distribution. Ububanzi bombindi wayo bumalunga nama-50 µm.
2. Ifayibha yendlela enye
Xa ubungakanani bejometri yefiber (ubukhulu becala ubukhulu bedayamitha) bunokuba kufutshane nobude bokukhanya, umzekelo, i-core diameter d1 ikuluhlu lwe-5-10 µm, ifayibha ivumela imo enye kuphela (imowudi esisiseko HE11) ukusasaza kuyo, kwaye ezinye iindlela zodidi oluphezulu ziyanqunyulwa, ezo ntsinga zibizwa ngokuba yimicu yendlela enye.
Ekubeni inendlela enye yokusasaza kwaye inqanda ingxaki yokusasazwa kwemowudi, i-fiber yemowudi enye ine-bandwidth ebanzi kakhulu kwaye ifaneleke ngakumbi kunxibelelwano lwefiber optic ephezulu. Ngoko ke, ukufezekisa ukuhanjiswa kwemodi enye, iiparamitha zefiber kufuneka zihlangabezane neemeko ezithile Ibalwe ngefomula yokuba i-fiber ene-NA = 0.12 ukuphumeza ukuhanjiswa kwemodi enye ngaphezulu kwe-λ=1.3 µm, I-radius ye-fiber core kufuneka. ibe ≤4.2 µm, oko kukuthi, undoqo wedayamitha d1≤8.4 µm.
Kuba undoqo wedayimitha yefiber optical yemowudi enye incinci kakhulu, iimfuno ezingqongqo ziyabekwa kwinkqubo yokwenziwa kwayo.
Ixesha lokuposa: Jan-10-2023
