Na te whakawhanaketanga tonu o te hangarau whakawhitiwhiti whakaaro, kua pa ki nga reanga e rima nga reanga mai i tona ahua. Kua tukuna e ia te arotautanga me te whakapai ake i te OM1, OM2, OM3, OM4 me OM5 muka, a kua kaha tonu te pakaru i te kaha o te tuku me te tawhiti whakawhiti. Na nga ahuatanga me nga ahuatanga tono, kua whakaatuhia e te muka OM5 te pai o te whanaketanga.
Te reanga tuatahi o te punaha korero muka whatu
Ko te 1966-1976 te wahanga whanaketanga o te muka whatu mai i te rangahau taketake ki te whakamahi mahi. I tenei waahanga, he punaha whakawhitiwhiti korero muka multimode (0.85μm) me te roangaru poto 850nm me te 45 MB / s, 34 MB / s tere iti i kitea. I roto i te take o te whakakaha, ka taea e te tawhiti tuku te 10km.
Te reanga tuarua o te punaha korero muka whatu
I roto i te 1976-1986, ko te kaupapa rangahau ko te whakapai ake i te tere o te whakawhiti me te whakanui ake i te tawhiti o te whakawhiti, me te kaha ki te whakatairanga i te waahanga whanaketanga o te whakamahinga o nga punaha whakawhitiwhiti muka whatu. i whakawhanakehia hoki te roangaru whakahaere mai i te 850nm te roangaru poto ki te 1310nm / 1550nm te roangaru roa, te whakatutuki i te punaha whakawhitiwhiti muka aratau kotahi me te tere o te tuku 140 ~ 565 Mb / s. I roto i te take o te whakakaha, ka taea e te tawhiti tuku te 100km.
Te reanga tuatoru o te punaha korero muka whatu
Mai i te 1986 ki te 1996, ko te ahunga whakamua rangahau o te kaha-nui-nui me te tawhiti-tawhiti i mahia ki te ako i te hangarau hou o te muka whatu. He 1.55 μm te whakamararatanga neke i te aratau kotahi te punaha korero muka whatu i whakatinanahia i tenei waahanga. Ka whakamahia e te muka he tikanga whakarereke o-waho (te taputapu hiko-ahua) me te tere tuku ki runga ki te 10 Gb/s me te tawhiti tuku ki runga ki te 150 kiromita me te kore he whakakaha rere.
Whakatupuranga tuawha te punaha korero muka whatu
1996-2009 Ko te wa o te tukutahi pūnaha mamati whatunga tuku muka whatu. Ko te punaha korero muka whatu e whakaatu ana i nga whakakaha whatu hei whakaiti i te hiahia o te hunga tukurua. Ka whakamahia te hangarau whakahiato wehenga roangaru ki te whakanui ake i te tere o te whakawhiti muka (tae atu ki te 10Tb/s) me te tawhiti tuku. Ka eke ki te 160km.
Tuhipoka: I te tau 2002, i panuitia manatia e ISO/IEC 11801 te karaehe paerewa o te muka multimode, te whakarōpū i te muka multimode OM1, OM2 me te muka OM3. I roto i te 2009, TIA-492-AAAD mana tautuhi OM4 muka.
Te reanga tuarima o te punaha korero muka whatu
Ko te punaha korero muka whatu e whakaatu ana i te hangarau soliton whatu, me te whakamahi i te awenga kore o te muka ki te hanga i te ngaru pupuhi ki te aukati i te marara i raro i te ahua ngaru taketake. I tenei wa, ka taea e te punaha whakawhitiwhiti muka-whatu te whakawhānui ake i te roangaru o te whakawehenga maha o te roangaru, me te 1530nm taketake~ Ko te 1570 nm ka toro atu ki te 1300 nm ki te 1650 nm. I tua atu, i tenei waahanga (2016) ka whakarewahia te muka OM5.