Ngokuthuthuka okuqhubekayo kobuchwepheshe bokuxhumana be-optical, ukuxhumana kwe-fiber optical kuhlangabezane nezizukulwane ezinhlanu kusukela ekubukeni kwayo.Ithuthukiswe kahle futhi yathuthukiswa kwe-OM1, OM2, OM3, OM4 kanye ne-OM5 fiber, futhi yenze impumelelo eqhubekayo kumthamo wokudlulisela kanye nebanga lokudlulisela.Ngenxa yezici nezimo zohlelo lokusebenza, i-OM5 fiber ibonise umfutho omuhle wokuthuthuka.
Uhlelo lokuqala lokuxhumana lwe-fiber optical
I-1966-1976 yayiyisiteji sokuthuthukiswa kwe-fiber optical kusuka ocwaningweni oluyisisekelo kuya ekusebenziseni okungokoqobo.Kulesi sigaba, isistimu yokuxhumana ye-multimode (0.85μm) ye-fiber optical ene-850nm ye-wavelength emfushane kanye no-45 MB/s, izinga eliphansi elingu-34 MB/s latholwa.Endabeni yeamplifier, ibanga lokudlulisela lingafinyelela ku-10km.
Uhlelo lwesibili lokuxhumana lwe-fiber optical
Ngo-1976-1986, inhloso yocwaningo kwakuwukuthuthukisa izinga lokudlulisela nokwandisa ibanga lokudlulisela, nokukhuthaza ngamandla isigaba sokuthuthukiswa kokusetshenziswa kwezinhlelo zokuxhumana ze-fiber optical. Kulesi sigaba, i-fiber yavela ku-multimode kuya kumodi eyodwa, i-wavelength yokusebenza nayo yathuthukiswa ukusuka ku-850nm ubude begagasi obufushane kuya ku-1310nm/1550nm ubude begagasi elide, kufinyelelwa uhlelo olulodwa lokuxhumana lwefayibha enezinga lokudlulisela elingu-140~565 Mb/s.Uma kuyi-amplifier, ibanga lokudlulisela lingafinyelela ku-100km.
Uhlelo lwesithathu lokuxhumana lwe-fiber optical
Kusukela ngo-1986 kuya ku-1996, inqubekelaphambili yocwaningo yomthamo omkhulu kakhulu kanye nebanga elide kakhulu lwenziwa ukuze kufundwe ubuchwepheshe obusha be-optical fiber.Isistimu yokuxhumana ye-fiber optic yemodi eyodwa engu-1.55 μm yasetshenziswa kulesi sigaba.Ifayibha isebenzisa indlela yangaphandle yokushintshashintsha (idivayisi ye-electro-optical) enezinga lokudlulisela elifinyelela ku-10 Gb/s kanye nebanga lokudlulisela elifika ku-150 km ngaphandle kwe-relay amplifier.
Uhlelo lwesine lokuxhumana lwe-fiber optical
1996-2009 inkathi ye-synchronous digital system optical transmission network.Uhlelo lokuxhumana lwe-fiber optical lethula ama-amplifiers optical ukunciphisa isidingo sabaphindayo.Ubuchwepheshe be-multiplexing be-wavelength division busetshenziselwa ukukhulisa izinga lokudluliswa kwe-fiber optical (kufika ku-10Tb/s) kanye nebanga lokudlulisela.Ingafinyelela ku-160km.
Qaphela: Ngo-2002, i-ISO/IEC 11801 yamemezela ngokusemthethweni isigaba esijwayelekile se-multimode fiber, ihlukanisa i-multimode fiber OM1, OM2 kanye ne-OM3 fiber.Ngo-2009, i-TIA-492-AAAD yachaza ngokusemthethweni i-OM4 fiber.
Uhlelo lokuxhumana lwesizukulwane sesihlanu
Isistimu yokuxhumana ye-fiber optical yethula ubuchwepheshe be-soliton optical, futhi isebenzisa umphumela ongaqondile we-fiber ukwenza i-pulse wave imelane nokuhlakazeka ngaphansi kwe-waveform yasekuqaleni.Kulesi sigaba, uhlelo lokuxhumana lwe-fiber-optic lukhulisa ngempumelelo ubude begagasi be-wavelength division multiplexer, kanye ne-1530nm yasekuqaleni ~ I-1570 nm ifinyelela ku-1300 nm kuya ku-1650 nm.Ngaphezu kwalokho, kulesi sigaba (2016) i-OM5 fiber yethulwa ngokusemthethweni.