1. Ifayibha ye-Multimode
Xa ubungakanani bejometri yefayibha (ngokuyintloko ububanzi obuphambili be-d1) bukhulu kakhulu kunobude bokukhanya (malunga ne-1 µm), kuya kubakho amashumi okanye amakhulu eendlela zokusasazeka kwifayibha. Iindlela ezahlukeneyo zokusasazeka zinesantya kunye nezigaba ezahlukeneyo zokusasazeka, nto leyo ebangela ukulibaziseka kwexesha kunye nokwandiswa kwee-optical pulses emva kokudluliselwa komgama omde. Le meko ibizwa ngokuba yi-modal dispersion (ekwaziwa ngokuba yi-intermodal dispersion). iifayibha zokukhanya.
Ukusasazwa kweModal kuya kuyinciphisa i-bandwidth ye-multimode fiber kwaye kunciphise amandla ayo okudlulisa, ngoko ke i-multimode fiber ifanelekile kuphela kunxibelelwano lwe-fiber optic olunomthamo omncinci.
Ukusasazwa kwe-refractive index ye-multimode fiber ngokuyintloko yi-parabolic, oko kuthetha ukuba ine-graded refractive index. Ububanzi bayo obuphambili bumalunga ne-50 µm.
2. Ifayibha yemowudi enye
Xa ubungakanani bejometri yefayibha (ngokukodwa ububanzi be-core) bunokuba kufutshane nobude bokukhanya, umzekelo, ububanzi be-core d1 bukwi-5-10 µm, ifayibha ivumela kuphela imo enye (imo yesiseko HE11) ukuba isasazeke kuyo, kwaye ezinye iindlela eziphezulu ziyanqunyulwa; ezo fayibha zibizwa ngokuba ziifayibha zemo enye.
Ekubeni inendlela enye yokusasazeka kwaye ithintela ingxaki yokusasazeka kwemowudi, ifayibha yemowudi enye ine-bandwidth ebanzi kakhulu kwaye ifanelekile ngokukodwa kunxibelelwano lwe-fiber optic olunamandla aphezulu. Ke ngoko, ukuze kufezekiswe ukudluliselwa kwemowudi enye, iiparameter zefayibha kufuneka zihlangabezane neemeko ezithile. Kubalwa kusetyenziswa ifomula ethi kwifayibha ene-NA=0.12, ukuze kufezekiswe ukudluliselwa kwemowudi enye ngaphezulu kwe-λ=1.3 µm, irediyasi yesiseko sefayibha kufuneka ibe yi-≤4.2 µm, oko kukuthi, ububanzi bayo obuphambili d1≤8.4 µm.
Ekubeni ububanzi be-core ye-single-mode optical fiber buncinci kakhulu, kufuneka kubekho iimfuno ezingqongqo kwinkqubo yokwenziwa kwayo.
Ixesha lokuthumela: Jan-10-2023
