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Pūnaha OCT mō te kimi whatu taurite ROF Mini, Pūnaha OCT mō te kimi whakaahua taurite
Ko te raupapa ROF-BPR o te waeine kimi mārama taurite (kaitirotiro whakaahua taurite) e whakauru ana i ngā photodiode e rua e ōrite ana me te whakakaha whakawhiti haruru tino iti, e whakaiti ana i te haruru taiaho me te haruru aratau noa, e whakapai ake ana i te ōwehenga haruru o te pūnaha, he maha ngā kōwhiringa urupare hihi, haruru iti, whakanui teitei, ngāwari ki te whakamahi me te pera atu, e whakamahia ana mō te tirotiro hihi, te kimi heterodyne, te ine whakaroa whatu, te tomography taurite whatu me ētahi atu mara.
Ko te kōwae kimi taurite iti i arotauhia mō ngā pūnaha OCT i roto i te ophthalmology he nui ngā āhuatanga whakanui me te iti o te haruru, he nui te ōwehenga whakakorenga aratau-noa me te kaha ngaohiko putanga teitei (~12V) mā te arotautanga roangaru. Kua whakamahia i roto i ngā tono puranga i roto i ngā taputapu OCT hauora, ā, ka taea hoki te arotau i te kite mō ngā roangaru 1310nm me te 1550nm.
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Pūoko Whakaahua ROF Taurite Pūoko Whakaahua Tairongo Teitei Pūoko Whakaahua silicon me te whakanui
Ko te raupapa ROF-BPR o te waeine kimi mārama taurite (kaitirotiro whakaahua taurite) e whakauru ana i ngā photodiode e rua e ōrite ana me te whakakaha whakawhiti haruru tino iti, e whakaiti ana i te haruru taiaho me te haruru aratau noa, e whakapai ake ana i te ōwehenga haruru o te pūnaha, he maha ngā kōwhiringa urupare hihi, haruru iti, whakanui teitei, ngāwari ki te whakamahi me te pera atu, e whakamahia ana mō te tirotiro hihi, te kimi heterodyne, te ine whakaroa whatu, te tomography taurite whatu me ētahi atu mara.
Ko ngā kōwae kimi taurite teitei-whakanui raupapa BPR 200M me 350M, me ngā āhuatanga whakanui teitei me te haruru iti, mā te arotautanga urupare ngongo PIN e rua hei whakatutuki i te ōwehenga whakakore aratau-noa teitei me te kaha ngaohiko putanga teitei (~3.5V), ka taea e tēnei kōwae kimi te whakarato i ngā momo putanga whakanui me te hononga rerekē e ai ki ngā hiahia o te kiritaki. He tino pai mō ngā pūnaha kimi taurite pēnei i te radar hau Doppler taurite.
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Pūnaha ROF-BPR Raupapa OCT He taputapu whakaahua taurite whakanui
Raupapa ROF-BPR He taputapu whakaahua taurite whakanui
Ka whakauruhia e te kōwae kimi mārama taurite raupapa ROF-BPR ngā photodiode e rua e ōrite ana me te whakakaha whakawhiti haruru tino iti, e whakaiti ana i te haruru taiaho me te haruru aratau noa, e whakapai ake ana i te ōwehenga tohu-ki-haruru o te pūnaha, me ngā roangaru me ngā whānui maha hei whiriwhiri, haruru iti, whakanui teitei, me te whakamahinga watea. E whakamahia ana i roto i te kimi heterodyne radar taiaho, te ine whakaroa whatu, te tomography taurite whatu (pūnaha OCT) me ētahi atu mara. -
Pūoko whakaahua ROF Si ka taea te whakarite Pūoko Whakaahua Silicon
Ko te ROF-PR-11M-B he taputapu whakaahua silicon (Si) me te whakanui me te whakanui ka taea te whakarite, i hangaia hei kimi i ngā tohu whatu mai i te 320nm ki te 1100nm. Kei roto he pana hurihuri 8-tūnga, e āhei ai ngā kaiwhakamahi ki te whakarite i te whakanui i roto i ngā hikoinga 10dB. Ka taea e te parepare te akiaki i ngā kawenga ātete-teitei me te putanga tae atu ki te 10V, ā, ka tukuna he 5V i raro i te kawenga 50Ω. Kei roto i te whare o te ROF-PR-11M-B he hononga miro wetewete (SM1T1) me te mowhiti pumau (SM1RR), e hototahi ana ki ngā taputapu whatu o ngā whakatakotoranga ōrite mā roto i ngā miro ā-roto, ā-waho rānei. Mā tēnei ka ngāwari te tāutanga o ngā tātari whatu o waho, ā, ka whakaratohia he tikanga whakairinga māmā.
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Pūoko Whakaahua ROF-PD 10GHz Pūoko Whakaahua Tere-Tiketike Pūoko Rama Pūoko Whatu Pūoko Whakaahua Whakakaha
Ko te waeine kimi whatu Rof-PD-10G 10GHz tere-teitei e whakamahi ana i te pūoko PIN 10GHz mahi-teitei, te whakaurunga muka aratau-kotahi/aratau-maha, te putanga hononga SMA, me te whakanui teitei, te aro nui, te putanga hono DC/AC, te whakanui papatahi, me ētahi atu. E whakamahia whānuitia ana i roto i te pūnaha tuku muka whatu tere-teitei, te ROF me te pūnaha pūoko muka whatu.
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Pūoko Whakaahua ROF Silicon 2.5GHz Teitei te whānui o te hononga Pūoko Whakaahua Taurite
Ko te raupapa ROF-BPR o te waeine kimi mārama taurite (te kite whakaahua taurite Silicon Photodetector) e whakauru ana i ngā photodiode e rua e ōrite ana me te whakakaha whakawhiti haruru tino iti, e whakaiti ana i te haruru taiaho me te haruru aratau noa, e whakapai ake ana i te ōwehenga haruru o te pūnaha, he maha ngā kōwhiringa urupare hihi, haruru iti, whakanui teitei, ngāwari ki te whakamahi me ētahi atu, e whakamahia ana mō te tirotiro hihi, te kimi heterodyne, te ine whakaroa whatu, te tomography taurite whatu me ētahi atu mara.
Ko te waeine kimi taurite whakanui-teitei kua arotauhia mō te pūnaha OCT o te whakatupuranga tuatoru (SS-OCT) he nui te whakanui me te iti o te haruru. Ka tutuki i a ia te ōwehenga whakakorenga aratau-noa teitei me te kaha ngaohiko putanga teitei mā te arotau i te roanga ngaru. Ko te whānuitanga o tēnei pūoko he tae atu ki te 2.5GHz, ā, kua arotauhia mō ngā roanga ngaru o te 1064nm me te 1310nm.
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Pūoko Whakaahua APD/PIN raupapa Rof-QPD Pūoko Whakaahua hiko-whāwhā Kōwae kitenga whakaahua-hiko whā-whāwhā Pūoko Whakaahua
Ko te waeine kimi whakaahua wha-hauwhā raupapa ROF-QPD e whakamahi ana i ngā photodiode wha-hauwhā kawemai, ā, he mea hanga motuhake me ngā ara iahiko taraiwa me ngā ara iahiko whakanui iti-haruru. E whakamahia ana mō te ine i te tūranga hihi me te ine koki tika, me ngā roangaru urupare e hipoki ana i te 400-1700nm (400-1100nm / 800-1700nm). E whakamahia whānuitia ana hoki i roto i ngā mara pēnei i te whakawhitiwhiti laser/whakawhiti laser me te arataki laser.
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Pūokohikohiko ROF InGaAs Pūokohikohiko kotahi-whakaahua e rere kore utu ana
He taputapu kite photon kotahi tata-whero-whāiti tēnei hua, e rere kore utu ana. Kei te whakamahi te taputapu matua i te InGaAs/lnP me ngā mana pupuri hinengaro motuhake ā-rohe. Ki te whakatauritea ki ngā hua rite, he matatau ngā tohu hangarau a te APD, he pono, he whakauru hoki, ā, ka taea te whakamahi mō te kite i te mārama iti kore tukutahi pērā i te liDAR me te kite i te wā ora o te fluorescence. Ka whakaratohia e ngā tono he otinga utu-whai hua.
Ka whakamahia e tēnei hua he APD urupare kino hei whakatutuki i te tinei tere o te horonga me te iti o te haruru hiko, te pai o te kimi me te iti o te tatau pōuri mā te arotau i te hiko me te hoahoa wera. I roto i ēnei, ko te pai o te kimi mōrahi o te 1550nm photon kotahi he > 35%; I tēnei wā, ka taea e te wiri wā te iti ki te 80ps; Pai o te kimi. I te 15%, ko te tatau pōuri iti rawa he 500 CPS, ā, ko te iti rawa o te pāorooro muri he 1% @ te wā mate 5 um; Ko te tere tatau kōhua tae atu ki te 4MCps @ te wā mate 250ns. Hei tāpiri, mō ngā horopaki tono motuhake, ko te tautoko i te whakaaro, te paepae tirotiro, te wā mate me ētahi atu tawhā o te mahi whirihoranga kaiwhakamahi hei whakapakari i te pai o te kimi, te tere tatau kōhua me ētahi atu tohu motuhake; Ka taea te whakatau i te mahi tautoko wā tahuritanga mamati (TDC). Hei whiwhi raraunga tatau wā, tautokohia te oma kore utu, te keti whakaoho waho rānei. E rua ngā aratau whakahaere e wātea ana. -
Pūoko Whakaahua APD Arotau Teitei ROF Pūoko Whakaahua Arotau Marama Pūoko Whakaahua Avalanche
Ko te pūoko whakaahua avalanche tairongo teitei he mea hanga mai i te raupapa ROF-APR APD Photodetector (kōwae kite whakaahua hiko APD) me te kōwae pūoko whakaahua tairongo teitei tere iti HSP, he tairongo teitei me te whānuitanga urupare whānuitanga, ā, ka taea te whakarato i ngā rahi rerekē o ngā mōkihi e ai ki ngā hiahia o te kiritaki.
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Pūokohiko ROF Si pūokohiko photodiode avalanche e rere kore utu ana pūokohiko photon kotahi
He taputapu kite irahiko kotahi te roopu mārama e kitea ana tēnei hua (Photodetector). Ka whakamahia e te taputapu matua te SiAPD, ka whakauruhia ngā hangarau whatu, hanganga, hiko me te pūmanawa, ā, he āhuatanga o te pai o te kimi, te tiaki kaha me te urutau taiao kaha. He whānuitia te whakamahinga i roto i ngā mara o te Lidar irahiko kotahi, te kimi irahiko, te whakaahua irahiko kotahi me te tohatoha kī matū. Ka whakamahia e tēnei hua ngā photodiode Si avalanche e mahi ana i te aratau Geiger mō te kimi irahiko kotahi i roto i ngā roangaru e kitea ana. I roto i ēnei, ko te pai o te kimi o te irahiko kotahi 850nm he >50%, te tatau pōuri.
<150cps, i muri i te pātītī ≤5.5%, ko te wiri wā <500ps. Hei tāpiri, mō ngā horopaki tono motuhake, ka tautokona te pāmahana ūnga whakamatao, te wā mate me ētahi atu tawhā o te mahi whirihoranga kaiwhakamahi hei whakapakari i te whai huatanga o te kitenga, te tere tatau kukū me ētahi atu tohu motuhake. -
Rof 200M Pūoko Whakaahua Āhuarangi Pūoko Whakaahua Āhuarangi
Ko te Pūoko Whakaahua tairongo teitei he mea hanga nui mai i te Pūoko Whakaahua APD raupapa ROF-APR (kōwae kitenga whakaahua hiko APD) me te kōwae tairongo teitei tere iti HSP, he tairongo teitei me te whānuitanga urupare whānuitanga, ā, ka taea te whakarato i ngā rahi rerekē o ngā mōkihi e ai ki ngā hiahia o te kiritaki.
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Pūoko Whakaahua ROF Pūoko Whakaahua APD Pūoko Whakaahua
Ko te pūoko whakaahua avalanche tairongo teitei he mea hanga mai i te raupapa ROF-APR APD Photodetector (kōwae kite whakaahua hiko APD) me te kōwae tairongo teitei tere iti HSP, he tairongo teitei me te whānuitanga urupare whānuitanga, ā, ka taea te whakarato i ngā rahi rerekē o ngā mōkihi e ai ki ngā hiahia o te kiritaki.
