Tuatahi, ko te whakarereketanga o roto me te whakarereketanga o waho
E ai ki te hononga whanaunga i waenganui i te modulator me te laser, tehuringa taiahoKa taea te wehewehe ki te whakarereketanga o roto me te whakarereketanga o waho.
01 whakarerekētanga o roto
Ko te tohu whakarereke ka mahia i roto i te tukanga o te oscillation laser, ara, ko nga tawhā o te oscillation laser ka hurihia kia rite ki te ture o te tohu whakarereke, kia pai ai te whakarereke i nga ahuatanga o te putanga laser me te whakatutuki i te whakarereketanga.
(1) Te whakahaere tika i te puna papu laser ki te whakatutuki i te whakarereketanga o te kaha o te laser whakaputa me te mea kei reira, kia whakahaerehia e te mana hiko.
(2) Ka whakanohoia te huānga whakarerekētanga ki roto i te resonator, a, ko te huringa o nga ahuatanga o te tinana o te huānga whakarereke e whakahaerehia ana e te tohu hei whakarereke i nga tawhā o te resonator, na reira ka huri i nga ahuatanga whakaputa o te laser.
02 Whakarereketanga o waho
Ko te whakarereketanga o waho ko te wehenga o te whakatipuranga laser me te whakarereketanga.E pa ana ki te utaina o te tohu whakarereke i muri i te hanganga o te taiaho, ara, ka whakanohohia te modulator ki te ara whatu i waho o te resonator laser.
Ko te ngaohiko tohu whakarereke ka taapirihia ki te modulator hei hanga i etahi ahuatanga tinana o te huringa o te wahanga modulator, a ka haere te taiaho i roto, ka whakarereke etahi tawhā o te ngaru marama, na reira ka kawe i nga korero hei tuku.Na reira, ko te whakarereketanga o waho ehara i te whakarereke i nga waahanga laser, engari ki te whakarereke i nga waahanga o te laser whakaputa, penei i te kaha, te auau, me era atu.
Tuarua,laser modulatorwhakarōpūtanga
E ai ki te tikanga mahi o te modulator, ka taea te whakarōpūtia ki rotowhakanekehanga hiko, te whakarereketanga acoustooptic, te huringa magneto-optic me te whakarereke tika.
01 Whakatikatika tika
Te au taraiwa o tetaiaho hikohikoKo te diode-marama ranei ka whakarerekehia e te tohu hiko, kia pai ai te whakarereketanga o te rama whakaputa me te huringa o te tohu hiko.
(1) TTL whakanekehanga i roto i te whakarereketanga tika
Ka taapirihia he tohu mamati TTL ki te hiko hiko taiaho, kia taea ai te whakahaere i te waa taraiwa laser ma te tohu o waho, katahi ka taea te whakahaere i te auau whakaputa laser.
(2) Whakatauritenga i roto i te whakarereketanga tika
I tua atu ki te taiaho mana supply tairitenga tohu (amplitude iti iho i te 5V huringa tohu ngaru takakau), ka taea e te whakauru tohu o waho ngaohiko rereke e rite ana ki te rereke o te taraiwa laser, katahi ka whakahaere i te mana taiaho whakaputa.
02 Whakarererangi hiko
Ko te whakarereketanga ma te whakamahi i te awe hiko-optic ka kiia ko te huringa-a-rorohiko.Ko te putake-a-tinana o te whakarereketanga hiko-a-rorohiko ko te paanga hiko-a-ringa, ara, i raro i te mahi a te mara hiko kua tonohia, ka huri te taupae whakaata o etahi tioata, a, ka pahemo te ngaru marama i roto i tenei reo, ka puta ona ahuatanga tuku. ka pa, ka whakarereketia.
03 Acousto-optic modulation
Ko te putake-a-tinana o te whakarereketanga acousto-optic ko te paanga acousto-optic, e tohu ana ki te ahuatanga o nga ngaru marama ka marara, ka marara ranei e te mara ngaru tipua i te wa e horahia ana i roto i te reo.Ina huri te taupū mataaro o te reo i ia wa ki te hanga i te pae kupenga taupū, ka puta te rereketanga i te wa e horahia ana te ngaru marama i roto i te reo, a ka huri te kaha, te auau me te ahunga o te rama rereke i te huringa o te mara ngaru supergenerated.
Ko te whakarerekētanga Acousto-optic he tukanga tinana e whakamahi ana i te paanga acousto-optic ki te uta i nga korero mo te kaikawe auau whatu.Ko te tohu whakarereke e mahihia ana i runga i te hiko-acoustic transducer i roto i te ahua o te tohu hiko (amplitude modulation), ka hurihia te tohu hiko e rite ana ki te mara ultrasonic.Ina haere te ngaru marama i roto i te reo acousto-optic, ka whakahurihia te kawe whatu ka huri hei ngaru whakanekehanga kaha e "kawe" korero.
04 Whakarererangi aukume-whatu
Ko te whakarerekētanga aukume-whatu he tono o te awe hurihuri hiko hiko o Faraday.Ka toha nga ngaru marama i roto i te reo aukume-whatu whakarara ki te ahunga o te papa autō, ko te ahuatanga o te hurihanga o te rererangi polarization o te marama polarized raina ka kiia ko te hurihanga autō.
Ka tukuna he papa autō i nga wa katoa ki te reo ki te whakatutuki i te waiwai aukume.Ko te ahunga o te ara iahiko autō kei roto i te ahunga axial o te reo, a ko te hurihanga o Faraday e whakawhirinaki ana ki te axial o naianei.Na reira, ma te whakahaere i te naianei o te kopae teitei me te whakarereke i te kaha o te waahi autō o te tohu axial, ka taea te whakahaere i te Koki hurihuri o te rererangi wiri whatu, kia huri ai te kaha o te marama i roto i te polarizer me te huringa o te Koki θ , kia tutuki ai te whakarereketanga.
Te wa tuku: Hanuere-08-2024