02modulator electro-opticawhakanekehanga hikoheru auau whatu
Ko te awe hiko-ahua e tohu ana ki te paanga ka huri te taupū whakaata o tetahi rawa ina hoatu he papa hiko. E rua nga ahuatanga matua o te awe hiko-ahua, ko tetahi ko te awe hiko-ahuru tuatahi, e mohiotia ana ko te awe Pokels, e pa ana ki te huringa raina o te taupae whakaata rauemi me te waahi hiko kua whakamahia. Ko tetahi atu ko te awe hiko-a-whatu tuarua, e mohiotia ana ko te awe Kerr, ko te huringa o te tohu whakaata o te rauemi he rite ki te tapawha o te papa hiko. Ko te nuinga o nga kaihuri hiko-ahua kei runga i te paanga Pokels. Ma te whakamahi i te hiko-optic modulator, ka taea e tatou te whakarereke i te waahanga o te marama o te maia, a i runga i te kaupapa o te whakarereketanga o te waahanga, na roto i tetahi huringa, ka taea hoki e tatou te whakarereke i te kaha, te polarization ranei o te marama.
He maha nga momo hanganga puāwaitanga, e whakaatuhia ana i te Whakaahua 2. (a), (b) me (c) he hanganga whakarereke kotahi katoa me te hanga ngawari, engari ko te whanui raina o te heru whatu whatu kua whakawhäitihia e te hiko-whatu. hōkaiipurangi. Mēnā ka hiahiatia he heru auau whatu me te auau tukurua teitei, kia rua, neke atu ranei nga kaiwhakariterite i roto i te riima, penei i te Whakaahua 2(d)(e). Ko te momo hangahanga whakamutunga e hanga heru auau whatu ka kiia ko te resonator electro-optical, ko te tauira hiko-optical i tuu ki roto i te resonator, ka taea ranei e te resonator ake te whakaputa i te paanga hiko-whatu, penei i te Whakaaturanga 3.
FIG. 2 He maha nga taputapu whakamatautau mo te hanga heru auau whatu i runganga kaiwhakaahua hiko-optic
FIG. 3 Nga hanganga o te maha o nga kohao hiko-whatu
03 Whakarereketanga Hiko-whatu ahua heru auau whatu
Ko te painga tuatahi: te tunability
I te mea ko te puna marama he taiaho whaanui-a-whanui ka taea, a ko te modulator electro-optical ano hoki he taapiri auau mahi, ko te heru o te hiko-a-whatu whakangao-a-whatu he pai te tere. I tua atu i te auautanga oro, na te mea ka taea te whakangao ngaru o te modulator, ko te auau tukurua o te heru whatu whatu ka taea te whakararangi. He painga tenei karekau he heru auau whatu i hangaia e nga laser aratau-rakaa me nga moroiti-resonators.
Painga tuarua: te auau tukurua
Ko te reeti tukurua ehara i te mea ngawari anake, engari ka taea hoki te whakatutuki me te kore e whakarereke i nga taputapu whakamatautau. Ko te whanui o te raina o te heru heru whatu whakahuri hiko he rite tonu ki te bandwidth whakahuri, ko te whanui o te roopu hiko hiko-a-rangi ko te 40GHz, a, ko te huringa hiko-a-whatu heru heru tukurua ka taea te neke atu i te whanui heru heru i hangaia. na etahi atu tikanga katoa haunga te resonator moroiti (ka tae ki te 100GHz).
Painga 3: te hanga hikaka
Ka whakatauritea ki te heru whatu i hangaia e etahi atu huarahi, ko te ahua o te kōpae whatu o te heru whatu whakahurihuri hiko e whakatauhia ana e te maha o nga nekehanga o te herekore, penei i te tohu auau reo irirangi, te ngaohiko piro, te polarization maiki, me era atu, ka taea whakamahia ki te whakahaere i te kaha o nga heru rereke kia tutuki ai te kaupapa o te hanga momotu.
04 Te whakamahi i te heru auau whatu whakahuri hiko
I roto i te tono whai kiko o te heru heru whatu modulator electro-optic, ka taea te wehea ki te hiringa heru kotahi me te rua. He tino whaiti te mokowhiti raina o te awhi heru kotahi, na reira ka taea te whakatutuki i te tika. I te wa ano, ka whakatauritea ki te heru whatu whatu i hangaia e te aratau-rakaa taiaho, he iti ake te taputapu o te hiko-optic modulator optical heru auau whatu me te pai ake. Ka puta te irirangi heru takirua na te pokanoa o nga heru kotahi e rua e hono ana me te rereke rereke o nga iarere tukurua, a ko te rereketanga o te auau tukurua ko te mokowā raina o te hihinga heru pokanoa hou. Ka taea te whakamahi hangarau heru auau whatu i roto i te atahanga whatu, rangi, inenga matotoru, taputapu whakatika, hanga ngaru tūāwhiorangi hanga, photonics auau reo irirangi, kōrero mamao, puku whatu me te aha.
FIG. 4 Tauira tono mo te heru auau whatu: Ko te inenga o te tohu matā tere-tere hei tauira
Wā tuku: Tihema-19-2023