Ukwakheka kweamadivaysi okuxhumana optical
Isistimu yokuxhumana enegagasi lokukhanya njengesignali kanye ne-Optical fiber njengendlela yokudlulisela ibizwa ngokuthi i-Optical fiber communications system. Izinzuzo zokuxhumana nge-fiber optical uma kuqhathaniswa nokuxhumana kwezintambo zendabuko kanye nokuxhumana okungenantambo yilezi: umthamo omkhulu wokuxhumana, ukulahleka kokudlulisela okuphansi, ikhono eliqinile lokuphazanyiswa kwe-anti-electromagnetic, ukugcinwa kuyimfihlo okuqinile, kanye nempahla eluhlaza ye-optical fiber transmission medium i-silicon dioxide enesitoreji esiningi. Ngaphezu kwalokho, i-fiber optical inezinzuzo zosayizi omncane, isisindo esincane kanye nezindleko eziphansi uma kuqhathaniswa nekhebula.
Umdwebo olandelayo ubonisa izingxenye zesekethe ehlanganisiwe ye-photonic:laser, ukusetshenziswa kabusha kokubona kanye nedivayisi ye-demultiplexing,i-photodetectorfuthiimoduli.
Isakhiwo esiyisisekelo sohlelo lokuxhumana lwe-optical fiber bidirectional luhlanganisa: isidlulisi sikagesi, isidlulisi se-optical, i-fibre yokudlulisa, isamukeli esibonakalayo nesitholi sikagesi.
Isignali kagesi enesivinini esikhulu ibhalwe ngekhodi isidluliseli sikagesi kusidlulisi esibonakalayo, siguqulelwa kumasiginali obonakalayo ngamadivayisi e-electro-optical afana nedivayisi ye-Laser (LD), bese sihlanganiswa nefayibha yokudlulisela.
Ngemva kokudluliswa kwebanga elide kwesignali yokubona ngefayibha yemodi eyodwa, i-erbium-doped fiber amplifier ingasetshenziswa ukukhulisa isignali yokubona nokuqhubeka nokudluliswa. Ngemuva kokuphela kokuthola optical, isignali ye-optical iguqulwa ibe isignali kagesi nge-PD namanye amadivaysi, futhi isignali itholwa umamukeli kagesi ngokucubungula ugesi okulandelayo. Inqubo yokuthumela nokwamukela amasignali kwelinye icala iyafana.
Ukuze kuzuzwe ukulinganisa kwemishini kusixhumanisi, i-transmitter optical kanye ne-optical receiver endaweni efanayo ihlanganiswa kancane kancane ku-Transceiver optical.
Ijubane eliphezuluImojula ye-Optical transceiveryakhiwa iReceiver Optical Subassembly (ROSA; Transmitter Optical Subassembly (TOSA) emelwe amadivayisi asebenzayo optical, ama-passive, amasekhethi asebenzayo kanye ne-photoelectric interface izingxenye ziyapakishwa. ama-optical chips.
Lapho bebhekene nebhodlela elibonakalayo nezinselele zobuchwepheshe okuhlangatshezwane nazo ekuthuthukisweni kobuchwepheshe be-microelectronics, abantu baqala ukusebenzisa ama-photon njengabathwali bolwazi ukuze bathole umkhawulokudonsa omkhulu, isivinini esiphezulu, ukusetshenziswa kwamandla okuphansi, kanye nokulibaziseka okuphansi kwe-photonic inteated circuit (PIC). Umgomo obalulekile we-loop ehlanganisiwe ye-photonic ukubona ukuhlanganiswa kwemisebenzi yokukhiqiza ukukhanya, ukuhlanganisa, ukuguquguquka, ukuhlunga, ukudlulisa, ukutholwa nokunye. Amandla okuqala okushayela amasekhethi ahlanganisiwe e-photonic avela ekuxhumaneni kwedatha, bese athuthukiswa kakhulu kuma-microwave photonics, ukucubungula ulwazi lwe-quantum, i-nonlinear optics, izinzwa, i-lidar neminye imikhakha.
Isikhathi sokuthumela: Aug-20-2024