He korero poto mo te hangarau laser modulator

He korero poto mo te laserkaiwhakaraupapahangarau
Ko te laser he ngaru hiko hiko teitei, na te pai o te honohono, penei i nga ngaru hiko tuku iho (pērā i whakamahia i roto i te reo irirangi me te pouaka whakaata), hei ngaru kawe ki te tuku korero. Ko te tukanga o te uta i nga korero ki runga i te laser ka kiia ko te whakarereketanga, ko te taputapu e mahi ana i tenei mahi ka kiia he modulator. I roto i tenei tukanga, ko te laser te mahi hei kawe, ko te tohu iti-auau e tuku ana i nga korero ka kiia ko te tohu whakarereke.
Ko te whakarereketanga taiaho te nuinga o te waa ka wehea ki te whakarereketanga o roto me te whakarereketanga o waho e rua nga huarahi. Te whakarereketanga o roto: e pa ana ki te whakarereketanga i roto i te tukanga o te oscillation laser, ara, ma te whakarereke i te tohu hei whakarereke i nga tawhā oscillation o te laser, na reira ka pa ki nga ahuatanga whakaputa o te laser. E rua nga huarahi o te whakarereketanga o roto: 1. Te whakahaere tika i te mana pupuhi o te laser ki te whakatika i te kaha o te putanga laser. Ma te whakamahi i te tohu ki te whakahaere i te mana hiko laser, ka taea te whakahaere i te kaha whakaputa laser e te tohu. 2. Ka whakanohoia nga waahanga whakarereke ki roto i te resonator, a ko nga ahuatanga o te tinana o enei waahanga whakarereke e whakahaerehia ana e te tohu, katahi ka hurihia nga tawhā o te resonator ki te whakatutuki i te whakarereketanga o te putanga laser. Ko te painga o te whakarereketanga o roto ko te mea he nui te pai o te whakarereketanga, engari ko te ngoikoretanga na te mea kei te noho te modulator i roto i te kohanga, ka nui ake te mate o te kohao, ka whakaiti i te mana whakaputa, ka hoki ano te bandwidth o te modulator. whakawhāitihia e te passband o te resonator. Ko te whakarereketanga o waho: ko te tikanga i muri i te hanganga o te taiaho, ka whakanohohia te modulator ki runga i te ara whatu i waho o te taiaho, a ka huri nga ahuatanga o te tinana o te huringa me te tohu whakarereke, a ka haere te laser i roto i te modulator, he tawhā. o te ngaru marama ka whakarereketia. Ko nga painga o te whakarereketanga o waho ko te kore e pa te mana whakaputa o te laser me te bandwidth o te kaiwhakahaere kaore i te whakaitihia e te passband o te resonator. Ko te ngoikoretanga he iti te pai o te whakarereke.
Ka taea te wehewehe i te huringa taiaho ki roto i te amplitude modulation, te huringa auau, te wahanga o te wahanga me te kaha whakanekehanga i runga i ona ahuatanga whakarereke. 1, whakanekeneke tiwerawera: ko te whakanekeneke amplitude ko te oscillation e huri ana te kaha kaha o te kaikawe ki te ture o te tohu whakarereke. 2, huringa auau: ki te whakarerekē i te tohu ki te huri i te auau o te oscillation taiaho. 3, te whakarereke i te waahanga: ki te whakarereke i te tohu hei whakarereke i te waahanga o te laser oscillation laser.

Kaihuri hiko hiko-whatu
Ko te maataapono o te whakarereketanga hiko-a-rorohiko ko te mohio ki te whakarereketanga o te kaha kia rite ki te maapono pokanoa o te marama polarized ma te whakamahi i te paanga hiko o te karaihe. Ko te awe hiko o te karaihe e pa ana ki te ahuatanga ka huri te taupae whakaata o te karaihe i raro i te mahi o te papa hiko o waho, ka puta he rereketanga o te waahanga i waenga i te marama e haere ana i roto i te karaihe i roto i nga huarahi rereke rereke, na te polarization. ka huri te ahua o te marama.

Ko te waahanga hiko-optic modulator
Tikanga whakahuri i te waahanga hiko: ka huri te koki o te oscillation laser e te ture o te tohu whakarereke.

I tua atu i te whakarereketanga o te kaha o te hiko hiko me te whakarereketanga o te waahanga hiko, he maha nga momo miihini laser, penei i te whakawhiti hiko hiko-whakawhitinga, hiko-whakawhitinga ngaru hiko, Kerr electro-optic modulator, acousto-optic modulator. , te whakahurihuri magnetooptic, te whakamohoatanga pokanoa me te whakahuri marama mokowhiti.