Ngāwari te whakawhitiwhiti kōrerokaiwhakarerekētanga wāhanga
I roto i te ao o te whakawhitiwhiti kōrero whatu tere-teitei me te hangarau matūriki, kei te pāngia ngā taputapu whakarerekētanga tuku iho e ngā arai nui o te mahi! Ko te koretake o te parakore o te tohu, te kore e taea te whakahaere i ngā wāhanga, me te nui rawa o te whakamahinga hiko o te pūnaha – koinei ngā wero e whakararu ana i te whanaketanga hangarau.
Āhua-ruakaiwhakarerekētanga wāhanga hiko-whatuka taea te whakatutuki i te whakarerekētanga tonu e rua-wāhanga o te wāhanga o ngā tohu whatu. He nui te whakaurunga, he iti te ngaronga whakaurunga, he nui te whānui o te whakarerekētanga, he iti te ngaohiko haurua-ngaru, me te kaha whatu kino nui. E whakamahia ana ēnei mō te whakahaere i te tangi whatu i roto i ngā pūnaha whakawhitiwhiti whatu tere-tiketike me te whakaputa āhua honohono i roto i ngā pūnaha tohatoha kī irahiko. Ko te whakaputanga o ngā whitiki taha i roto i ngā pūnaha ROF me te whakaiti i te marara Brillouin whakaohooho (SBS) i roto i ngā pūnaha whakawhitiwhiti muka whatu anaro, me ētahi atu mara.
Tekaiwhakarerekētanga wāhanga rua-ruaKa whakatutuki i te mana whakahaere tika o te wāhanga o ngā tohu whatu mā te whakarerekētanga wāhanga tonu e rua-wāhanga, ā, e whakaatu ana i te uara ahurei i roto i te whakawhitiwhiti whatu tere-tiketike me te tohatoha kī irahiko.
1. Te whakaurunga teitei me te paepae kino teitei: He hoahoa whakauru kotahi tōna, he iti te rahi, ā, e tautoko ana i te mana whatu kino teitei. Ka taea te hototahi tika ki ngā pūtake taiaho mana-teitei, ā, he pai mō te whakaputa whai hua o ngā taha taha mirimita-ngaru i roto i ngā pūnaha ROF (Optical Wireless).
2. Te pehi i te tioro me te whakahaere SBS: I roto i te tuku tere-teitei, ko te raina owhakarerekētanga ā-wāhangaka taea te pehi i te tangi o ngā tohu whatu. I roto i te whakawhitiwhiti muka whatu anaro, mā te arotau i te hohonutanga o te whakarerekētanga ā-wāhanga, ka taea te whakaiti nui i te pānga marara Brillouin whakaohooho (SBS), ā, ka roa ake te tawhiti tuku.
I roto i te tohatoha kī irahiko (QKD), ko te āhua honohono o ngā takirua photon te "kī irahiko" mō te whakawhitiwhiti kōrero haumaru - ko te tika o tana whakaritenga e whakatau tika ana i te āhuatanga kore-rongo o te kī. Ko te "ngāwari" o te modulator wāhanga bipolar e whakaatahia ana i roto i tōna kaha ki te whakarerekē i ngā tawhā wāhanga kia urutau ki ngā raruraru taiao o ngā hononga muka whatu rerekē (pēnei i ngā huringa pāmahana me te nekehanga wāhanga i puta mai i te ahotea miihini), e whakarite ana i te pai o te whakaputanga o ngā takirua photon honohono. Ka tutuki te "pūmautanga" mā te whakahaere pāmahana tika me te hangarau auau raka-wāhanga, e pehi ana i te haruru wāhanga i raro i te rohe haruru irahiko me te aukati i te wetewete o ngā āhua irahiko i te wā tuku. Ko tēnei āhuatanga takirua o te "ngāwari + pūmautanga" ehara i te mea ka whakarei ake i te tere o te tohatoha honohono tawhiti-poto i roto i ngā whatunga rohe tāone nui (pēnei i te tere hapa moka iti iho i te 1% i roto i te 50 kiromita), engari ka tautoko hoki i te pono o ngā kī i roto i te tuku tawhiti-roa i roto i ngā whatunga i waenga i ngā tāone (pēnei i te neke atu i te kotahi rau kiromita puta noa i ngā tāone), ka noho hei wāhanga matua mō te hanga i tētahi whatunga whakawhitiwhiti kōrero irahiko "tino haumaru".
Wā tuku: Hurae-22-2025