He kupu whakataki ki te putanga o te mata o te kōhao poutūrēhia haurua-ira(VCSEL)
I whakawhanakehia ngā taiaho whakaputa mata poutū o waho i waenganui o te tekau tau atu i 1990 hei whakakore i tētahi raruraru matua i whakararu i te whanaketanga o ngā taiaho haurua-ira tuku iho: me pēhea te whakaputa i ngā putanga taiaho mana-teitei me te kounga hihi teitei i te aratau whakawhiti taketake.
Ngā taiaho whakaputa mata o waho poutū (Vecsels), e mōhiotia ana hoki kongā taiaho kōpae haurua-waenga(SDL), he mema hou o te whānau taiaho. Ka taea e ia te hoahoa i te roangaru tukunga mā te whakarerekē i te hanganga rauemi me te matotoru o te puna irahiko i roto i te reo whakanui irahiko, ā, i te whakakotahitanga me te whakarea auau o roto i te poka ka taea te hipoki i te whānuitanga roangaru mai i te ultraviolet ki te infrared tawhiti, ka tutuki te putanga mana teitei me te pupuri i te koki wehewehe iti o te hihi taiaho porohita ōrite. Ko te resonator taiaho he mea hanga mai i te hanganga DBR o raro o te maramara whakanui me te whakaata hononga putanga o waho. Mā tēnei hanganga resonator o waho ahurei ka taea te whakauru i ngā huānga whatu ki roto i te poka mō ngā mahi pēnei i te whakarea auau, te rerekētanga auau, me te raka-aratau, ka waiho a VECSEL hei mea tino pai.pūtake lasermō ngā tono mai i te biophotonics, te spectroscopy,rongoā taiaho, me te whakaata laser.
Ko te resonator o te laser semiconductor whakaputa mata-VC e poutū ana ki te papa kei reira te rohe hohe, ā, ko tōna mārama putanga e poutū ana ki te papa o te rohe hohe, e whakaaturia ana i te pikitia. He painga ahurei a VCSEL, pērā i te rahi iti, te auau teitei, te kounga hihi pai, te paepae kino mata kōhao nui, me te tukanga whakaputa ngāwari noa iho. E whakaatu ana i te mahi tino pai i roto i ngā tono o te whakaaturanga laser, te whakawhitiwhiti kōrero whatu me te karaka whatu. Heoi, kāore e taea e ngā VCsel te whiwhi laser mana-teitei i runga ake i te taumata watt, nō reira kāore e taea te whakamahi i roto i ngā mara e hiahiatia ana te mana teitei.
Ko te kaiwhakaoho taiaho o VCSEL he mea tito mai i tētahi whakaata Bragg tohatoha (DBR) he mea tito mai i tētahi hanganga epitaxial maha-apa o te rauemi semiconductor i ngā taha o runga me raro o te rohe hohe, he tino rerekē tēnei i terēserihe pūorooro i titoa mai i te papa wehewehe i roto i te EEL. Ko te ahunga o te pūorooro whatu VCSEL he poutū ki te mata maramara, ko te putanga taiaho he poutū hoki ki te mata maramara, ā, ko te whakaata o ngā taha e rua o te DBR he teitei ake i te papa otinga EEL.
Ko te roa o te pūwhakaoho taiaho o VCSEL he torutoru maikorona noa iho, he iti ake i te pūwhakaoho mirimita o EEL, ā, he iti te pikinga kotahi-ara i whiwhihia e te oscillation o te mara whatu i roto i te kōhao. Ahakoa ka taea te whakatutuki i te putanga aratau whakawhiti taketake, ka taea e te mana putanga te tae ki te maha miriwati. He porowhita te kōtaha whakawhiti-wāhanga o te hihi taiaho putanga VCSEL, ā, he iti ake te koki wehewehenga i te hihi taiaho whakaputa-taha. Hei whakatutuki i te putanga mana teitei o VCSEL, me whakanui ake te rohe kanapa kia nui ake te pikinga, ā, mā te whakanui ake i te rohe kanapa ka huri te taiaho putanga hei putanga aratau-maha. I taua wā anō, he uaua ki te whakatutuki i te werohanga iahiko ōrite i roto i te rohe kanapa nui, ā, mā te werohanga iahiko kāore i te ōrite ka whakanui ake i te kohikohinga wera para. I roto i te poto, ka taea e te VCSEL te whakaputa i te ira āhua porowhita ōrite aratau taketake mā te hoahoa hanganga whaitake, engari he iti te mana putanga ina he aratau kotahi te putanga. Nō reira, he maha ngā VCsel e whakauruhia ana ki te aratau putanga.
Wā tuku: Mei-21-2024