Te whānui o te aratuku me te kawenga o te taputapu whakaahua

Te whānui o te aratuku me te kawenga opūoko whakaahua
I te wā e whiriwhiri anaPūoko whakaahua InGaAs, e hiahia ana te katoa ki ngā whakatakotoranga ōrite: te whānui o te hononga i runga ake i te 10 GHz me te urupare i runga ake i te 0.9 A/W. I muri i taku tirotiro i te pukapuka raraunga, i kitea e au kāore ēnei tau e rua e puta mai ana i runga i te taputapu kotahi. Ko te urupare whānui teitei he 0.5 A/W noa iho, he iti iho rānei, ā, ko te whānui o te urupare teitei he torutoru rau MHz noa iho. Ehara tēnei i te take hangarau me te kaihanga – he mea taupatupatu te whānui o te hononga me te urupare i roto i te ahupūngao, ā, kāore e taea te whai i ngā huarahi e rua.
He rerekētanga ā-tinana te whānui o te ara iahiko me te arotautanga, e ahu mai ana i te tawhā nui o te matotoru o te paparanga mimiti. Mā te whakanui ake i te matotoru o te paparanga mimiti ka taea te whakapai ake i te whai huatanga o te matū (mā reira ka whakarei ake i te arotautanga), engari ka roa ake te wā whakawhiti o ngā kaikawe utu (mā reira ka whakaiti i te whānui o te ara iahiko); Waihoki. Nō reira, i roto i te hoahoa o te taputapu whakaahua PIN paerewa, kāore e taea te whakatutuki i ngā mea e rua i te wā kotahi, ā, me whakarite he whakataunga.
Mahere whanaketanga ahumahi:
E whakaatu ana te tuhinga i ētahi otinga hangarau matatau e toru e aro ana ki te wawahi i tēnei tautohenga:
Pūoko momo arataki ngaru (WGPD): Ka wehea te ahunga horapa o te mārama mai i te ahunga nekeneke o ngā kaikawe utu, ā, ka taea te whakatutuki i te whānui o te whānui (>40 GHz) me te aro nui (>0.9 A/W) i te wā kotahi, engari he uaua te tukanga, ā, he nui te utu.
Pūoko Whakaahua Waka Kawe Kotahi-Ahunga (UTC-PD): Mā te whakamahi i ngā irahiko tere-teitei anake mō te nekeneke, me te whakakore i te herenga wā whakawhiti o ngā kōhao tere-iti, ka taea te whakatutuki i te whānui o te whānui (>100 GHz) ā, he mea whakamahi noa i roto i te whakawhitiwhiti tere-teitei me ngā mara terahertz.
Pūoko whakaahua whakarei ake i te kōhao haruru (RCE): Mā te whakamahi i te kōhao haruru whatu hei whakarei ake i te mimiti mārama i roto i tētahi paparanga mimiti angiangi, ka taea te whakapai ake i te whai huatanga matū me te pupuri tonu i te whānui o te whānuitanga, engari he tino whaiti te whānui o te whānuitanga mahi (te whānuitanga o te whānuitanga).
Ngā whakaaro mō te whiriwhiri kaupapa:
Whakamāramahia te kaupapa matua o ngā whakaritenga: Tuatahi, whakatauhia te roangaru iti rawa e hiahiatia ana mō te pūoko whakaahua i runga i te roangaru tohu pūnaha (me te tawhiti e 3 ngā wā), kātahi ka tīpako i te tauira me te urupare teitei rawa atu i raro i tēnei āhuatanga.
Kia aro ki ngā tohu taumata pūnaha: I te aromatawai i te pūoko whakaahua, me aro ki te mana ōrite haruru (NEP) me te aro o te pūnaha, kaua ko te aro noa iho, nā te mea ka haere tahi pea te aro nui me te haruru nui.
WhakaarohiaPūoko whakaahua APDi ngā āhuatanga iti te mana: Ina tino iti te mana o te māramatanga taupatupatu (pēnei i te <-30 dBm), ka taea te whakamahi i te whiwhinga ā-roto o te photodiode avalanche (photodetector APD) hei whakakapi mō te kore aro, engari me aro ki tōna haruru nui.
Te whiriwhiri i te WGPD me ngā whakaritenga teitei me te tahua nui: Ina hiahiatia e te pūnaha te whānui o te hononga (>20 GHz) me te urupare teitei (>0.8 A/W), kāore e taea e ngā pūoko PIN paerewa te whakatutuki i ngā whakaritenga, ā, me whai whakaaro tika ki ngā pūoko momo arataki ngaru (WGPD).
Whakatau:
Ko te tauwhitinga kawenga whānui o te paerewaPūoko whakaahua PINhe herenga ā-tinana tūturu. Hei pakaru pono i tēnei, me auaha te hanganga o te taputapu hei wehe ā-tinana i te ara mimiti mārama mai i te ara kawe. He tino pai te mahi a ngā otinga teitei engari he nui ngā utu, nō reira i roto i te mahi hangarau, me whakatau tonu i waenga i ngā horopaki tono motuhake, ngā whakaritenga mahi, me ngā tahua.