He aha tewhakakaha whatu haurua-haurua
Ko te whakakaha whatu haurua-waenga he momo whakakaha whatu e whakamahi ana i te reo whakanui haurua-waenga. He rite ki te taioita taiaho, e whakakapia ana te whakaata i te pito o raro ki te paninga whakaata-haurua. Ka tukuna te mārama tohu mā te arataki ngaru aratau-kotahi haurua-waenga. Ko te whānuitanga whakawhiti o te arataki ngaru he 1-2 maikiromita, ā, ko tōna roa kei te 0.5-2mm. He nui te taupatupatu o te aratau arataki ngaru ki te rohe hohe (whakanui), e pupuhihia ana e te ia. Ka whakaputahia e te ia werohia he kukū kawe i roto i te roopu kawe, ka taea ai te whakawhiti whatu o te roopu kawe ki te roopu valence. Ka puta te whakanui tihi ina he nui ake te kaha photon i te kaha āputa roopu. Ko te whakakaha whatu SOA e whakamahia ana i roto i ngā pūnaha whakawhitiwhiti kōrero i roto i te ahua o ngā hiku poaka, me te roanga ngaru mahi tata ki te 1300nm, 1500nm rānei, e whakarato ana i te 30dB o te whakanui.
TeWhakakaha whatu haurua-haurua SOAhe taputapu hononga PN me te hanganga puna irahiko taumaha. Ka hurihia e te taha whakamua o waho te maha o ngā matūriki dielectric. Whai muri i te urunga mai o te mārama whakaoho o waho, ka puta te hihi whakaohooho, ka tutuki ai te whakanui ake i ngā tohu whatu. Kei roto i ngā tukanga whakawhiti pūngao e toru o runga ake nei ngā tukanga whakawhiti pūngao katoa i roto iWhakakaha whatu SOAKo te whakanui i ngā tohu whatu e ahu mai ana i te tukunga whakaohooho. Ka puta ngātahi ngā tukanga mimiti whakaohooho me te tukunga whakaohooho. Ka taea te whakamahi i te mimiti whakaohooho o te mārama papu hei whakatere i te whakaora o ngā kaikawe, ā, i te wā kotahi, ka taea e te papu hiko te tuku i ngā irahiko ki te taumata pūngao teitei (rohe kawe hiko). Ina whakanuia te irahiko ohorere, ka hangaia he haruru irahiko ohorere kua whakanuia. Ko te whakakaha whatu SOA e ahu mai ana i ngā maramara haurua-ira.
He mea tito ngā maramara haurua-whakahaere i ngā haurua-whakahaere matū, pērā i te GaAs/AlGaAs, InP/AlGaAs, InP/InGaAsP me te InP/InAlGaAs, me ētahi atu. Koinei anō hoki ngā rauemi mō te hanga i ngā rēseri haurua-whakahaere. He rite tonu te hoahoa arataki ngaru o te SOA ki te hoahoa rēseri, he rite rānei ki tērā o ngā rēseri. Ko te rerekētanga kei roto i te mea me hanga e ngā rēseri he kōhao haruru huri noa i te reo whakanui hei whakaputa me te pupuri i te wiri o te tohu whatu. Ka whakanuia te tohu whatu i roto i te kōhao i mua i te putanga. I roto iWhakakaha SOA(ko tā tātou e kōrero nei i konei he mea here ki ngā whakakaha ngaru haere e whakamahia ana i te nuinga o ngā tono), kotahi noa te haere o te mārama mā te reo whakanui, ā, he iti noa te whakaata whakamuri. E toru ngā wāhanga o te hanganga whakakaha SOA: Rohe P, Rohe I (paparanga hohe, pūnga rānei), me Rohe N. Ko te paparanga hohe he mea tito i ngā Puna kuantum, ka taea te whakapai ake i te pai o te tahuritanga hiko whakaahua me te whakaiti i te iahiko paepae.
Pikitia 1. He taiaho muka me te SOA whakauru mō te whakaputa i ngā pāoro whatu
I whakamahia ki te whakawhiti hongere
Kāore i te whakamahia noa ngā SOA ki te whakanui: ka taea hoki te whakamahi i roto i te ao whakawhitiwhiti muka whatu, ngā tono e hangai ana ki ngā tukanga kore-raina pēnei i te whakanui i te saturation, te polarization whakawhiti-wāhanga rānei, e whakamahi ana i te rerekētanga o te kukū kawe i roto i te whakanui whatu SOA hei whiwhi i ngā taupū whakaata rerekē. Ka taea te whakamahi i ēnei pānga ki te whakawhiti hongere (huringa roangaru), te hurihanga hōputu whakarerekētanga, te whakaora karaka, te whakahou tohu me te mohio tauira, me ētahi atu i roto i ngā pūnaha whakarea wehenga roangaru.
I te whanaketanga o te hangarau ara iahiko whakauru optoelectronic me te whakaiti i ngā utu hanga, ka haere tonu te whānui o ngā mara tono o te whakakaha whatu haurua-haurua SOA hei whakakaha taketake, hei taputapu whatu mahi me ngā wāhanga pūnaha-iti.
Wā tuku: Pipiri-23-2025