Gabatarwar taƙaitaccen bayani game da fasahar laser modulator

Gabatarwa ta taƙaitaccen bayani game da lasermai daidaitafasaha
Laser wani nau'in wutar lantarki ne mai yawan mita, saboda kyakkyawan haɗin kai, kamar raƙuman lantarki na gargajiya (kamar waɗanda ake amfani da su a rediyo da talabijin), a matsayin raƙuman lantarki don isar da bayanai. Ana kiran tsarin loda bayanai a kan laser modulation, kuma na'urar da ke yin wannan aikin ana kiranta modulator. A cikin wannan tsari, laser ɗin yana aiki a matsayin mai ɗaukar bayanai, yayin da siginar ƙarancin mita da ke watsa bayanan ana kiranta siginar da aka daidaita.
Yawanci ana raba gyaran laser zuwa tsarin daidaitawa na ciki da kuma tsarin daidaitawa na waje ta hanyoyi biyu. Tsarin daidaitawa na ciki: yana nufin tsarin daidaitawa a cikin tsarin juyawar laser, wato, ta hanyar daidaita siginar don canza sigogin juyawar laser, don haka yana shafar halayen fitarwa na laser. Akwai hanyoyi guda biyu na daidaitawa na ciki: 1. Sarrafa wutar lantarki ta laser kai tsaye don daidaita ƙarfin fitowar laser. Ta amfani da siginar don sarrafa wutar lantarki ta laser, ƙarfin fitarwa na laser za a iya sarrafa shi ta hanyar siginar. 2. Ana sanya abubuwan daidaitawa a cikin resonator, kuma halayen zahiri na waɗannan abubuwan daidaitawa ana sarrafa su ta hanyar siginar, sannan ana canza sigogi na resonator don cimma daidaitaccen fitarwa na laser. Amfanin gyaran ciki shine ingancin daidaitawa yana da yawa, amma rashin amfani shine saboda modulator yana cikin rami, zai ƙara asara a cikin rami, rage ƙarfin fitarwa, kuma bandwidth na modulator shima zai iyakance ta hanyar wucewa na resonator. Daidaitawar waje: yana nufin cewa bayan samuwar laser, ana sanya modulator akan hanyar gani a wajen laser, kuma ana canza halayen zahiri na modulator tare da siginar da aka daidaita, kuma lokacin da laser ya ratsa ta cikin modulator, za a daidaita wani siga na hasken. Fa'idodin daidaitawar waje sune cewa ƙarfin fitarwa na laser ba ya shafar kuma bandwidth na mai sarrafawa ba ya iyakance ta hanyar wucewa na resonator. Rashin kyau shine ƙarancin ingancin daidaitawa.
Za a iya raba gyaran laser zuwa tsarin girma, tsarin mita, tsarin lokaci da kuma tsarin ƙarfi bisa ga halayen gyaransa. 1, tsarin girma: tsarin girma shine tsarin juyawar da girman mai ɗaukar kaya ke canzawa tare da dokar siginar da aka daidaita. 2, tsarin mita: don daidaita siginar don canza mitar juyawar laser. 3, tsarin lokaci: don daidaita siginar don canza yanayin laser oscillation.

Mai daidaita ƙarfin lantarki na gani
Ka'idar daidaita ƙarfin lantarki ta hanyar amfani da hasken da aka haɗa shi da wutar lantarki ita ce a fahimci yanayin ƙarfin lantarki bisa ga ƙa'idar tsangwama ta hasken da aka haɗa ta hanyar amfani da tasirin lantarki ta hanyar amfani da wutar ...

Mai daidaita yanayin lantarki na lantarki
Ka'idar daidaita yanayin lokaci na lantarki: Kusurwar juyawar laser tana canzawa ta hanyar ƙa'idar daidaita siginar.

Baya ga tsarin ƙarfin lantarki na electro-optic da aka ambata a sama da kuma tsarin yanayin electro-optic, akwai nau'ikan masu gyaran laser da yawa, kamar su transverse electro-optic modulator, electro-optic traveling wave modulator, Kerr electro-optic modulator, acousto-optic modulator, magnetooptic modulator, interference modulator da spatial light modulator.