[Isingeniso] Ubuchwepheshe be-wavelength division multiplexing bungakwazi ukusebenzisa ngokugcwele izinsiza zomkhawulokudonsa olethwa indawo elahlekelwa kancane yefiber yemodi eyodwa.Ngokusho kwemvamisa (noma ubude be-wavelength) begagasi lokukhanya lesiteshi ngasinye, hlukanisa iwindi lokulahlekelwa okuphansi lefiber eziteshini eziningana, sebenzisa igagasi lokukhanya njengomthwali wesignali, futhi usebenzise i-multiplexer division multiplexer (multiplexer) ukuphela kokudlulisela.
Ubuchwepheshe bokuphindaphinda kwe-wavelength division bungasebenzisa ngokugcwele izinsiza zomkhawulokudonsa olethwe indawo elahlekelwa kancane yefiber yemodi eyodwa.Ngokusho kwe-frequency (noma i-wavelength) yegagasi lokukhanya lesiteshi ngasinye, ifasitela elilahlekelwa kancane le-fiber optical lihlukaniswe ngamashaneli amaningana, igagasi lokukhanya lisetshenziswa njengomthwali wesignali, kanye ne-multiplexer division multiplexer (multiplexer). ) isetshenziswa ekugcineni kokudlulisela.Izithwali zesignali ze-optical zamaza amaza ziyahlanganiswa futhi zithunyelwe ku-fiber optical ukuze zidluliselwe.Ekupheleni kokwamukela, i-wavelength division multiplexer (i-wave splitter) ihlukanisa laba bathwali be-optical abaphethe amasignali ahlukene kumaza ahlukene.Njengoba izimpawu ze-optical carrier ze-wavelengths ehlukene zingabhekwa njengezizimele komunye nomunye (ngaphandle kokucabangela ukungahambisani kwe-fiber optical), ukuphindaphinda nokudluliswa kwezibonakaliso eziningi ze-optical kungenziwa ku-fiber optical eyodwa.
I-Fiber Access Technology
Inethiwekhi yokufinyelela i-fiber optical "imayela lokugcina" lomgwaqo omkhulu wolwazi.Ukuze kuzuzwe ukudluliswa kolwazi olunesivinini esikhulu futhi uhlangabezane nezidingo zomphakathi, hhayi nje inethiwekhi yokudlulisa i-broadband backbone, kodwa futhi ingxenye yokufinyelela komsebenzisi iyisihluthulelo.Inethiwekhi yokufinyelela i-Optical fiber iwubuchwepheshe obuyinhloko bokugeleza kolwazi olunesivinini esikhulu ezinkulungwaneni zemizi.Ekufinyeleleni okubanzi kwe-fiber optical, ngenxa yezindawo ezihlukene zokufika zemicu yokubona, kunezinhlelo zokusebenza ezihlukene ezifana ne-FTTB, i-FTTC, i-FTCab ne-FTTH, ngokuhlanganyela ebizwa ngokuthi i-FTTx.Ngakho-ke, ingakwazi ukusebenzisa ngokugcwele izici ze-broadband ze-optical fibers, inikeze abasebenzisi umkhawulokudonsa ongakhawulelwe odingekayo, futhi ihlangabezane ngokugcwele nezidingo zokufinyelela kwe-broadband.Njengamanje, ubuchwepheshe basekhaya bungahlinzeka abasebenzisi ngomkhawulokudonsa we-FE noma we-GE, okuyindlela ekahle yokufinyelela kubasebenzisi bamabhizinisi amakhulu naphakathi.
Ukuthuthukiswa kwe-Optical Fiber Communication Technology
Eminyakeni yakamuva, ngokuthuthuka kobuchwepheshe, ukuguqulwa kohlelo lokuphatha ezokuxhumana kanye nokuvulwa okugcwele kancane kancane kwemakethe yezokuxhumana, ukuthuthukiswa kokuxhumana nge-fiber optical kuphinde kwethula isimo esisha sokuthuthuka okunamandla.Okulandelayo isingeniso esifushane sezindawo ezithuthukile eziyinhloko emkhakheni wokuxhumana nge-fiber optical.Incazelo kanye nethemba, ukuthuthukiswa kwezinhlelo ze-ultra-high-speed, ukuvela kwezinhlelo ze-WDM ezinamandla amakhulu kakhulu.
Uma sibheka ekuthuthukisweni kokuxhumana nge-fiber optical eminyakeni yamuva nje, ukwakha inethiwekhi ye-optical backbone kazwelonke enamandla kakhulu esobala, eguquguqukayo kakhulu futhi enkulu kakhulu akukwazi nje ukubeka isisekelo esiqinile se-National Information Infrastructure (NII), kodwa. futhi imboni yezolwazi yezwe lami ekhulwini elizayo kanye nokusuka komnotho wezwe kanye nokuphepha kwezwe kunokubaluleka okubaluleke kakhulu kwamasu.Ukuthuthukiswa kwemboni yezokuxhumana nge-fiber optical nakho kuwumkhuba ongenakuhlehliswa wokuxhumana kwesimanje.