Iintlobo zeemodyuli ze-laser

Okokuqala, ukumodareyitha kwangaphakathi kunye nokumodareyitha kwangaphandle
Ngokobudlelwane obunxulumeneyo phakathi kwemodyuli kunye nelaser, iukuguqulwa kwelaserinokwahlulwa ibe yimodyuli yangaphakathi kunye nokumodareyitha kwangaphandle.

01 uhlengahlengiso lwangaphakathi
Umqondiso wokumodareyitha uqhutyelwa kwinkqubo ye-laser oscillation, oko kukuthi, iiparitha ze-laser oscillation zitshintshwa ngokomthetho wesignali yokumodareyitha, ukuze utshintshe iimpawu ze-laser output kunye nokufezekisa ukumodareyitha.
(1) Ukulawula ngokuthe ngqo umthombo wempompo ye-laser ukufezekisa ukumodareyithwa kokuqina kwe-laser yemveliso kunye nokuba kukho, ukuze ilawulwe ngumbane.
(2) I-element modulation ifakwe kwi-resonator, kwaye utshintsho lweempawu ezibonakalayo ze-modulation element ilawulwa ngumqondiso wokutshintsha iiparitha ze-resonator, ngaloo ndlela utshintshe iimpawu zokuphuma kwe-laser.

02 Uhlengahlengiso lwangaphandle
Ukumodareyitha kwangaphandle kukwahlulwa kokwenziwa kwelaser kunye nokumodareyitha.Ibhekisela ekulayisheni isignali edibeneyo emva kokubunjwa kwe-laser, oko kukuthi, i-modulator ifakwe kwindlela ye-optical ngaphandle kwe-laser resonator.
Umbane wophawu lokumodareyitha wongezwa kwimodyuli ukwenza ezinye iimpawu zomzimba zotshintsho lwenqanaba lemodyuli, kwaye xa i-laser idlula kuyo, ezinye iiparamitha zamaza okukhanya ziyamodareyithwa, ngaloo ndlela zithwele ulwazi oluza kuhanjiswa.Ke ngoko, ukumodareyitha kwangaphandle akukona ukutshintsha iiparamitha ze-laser, kodwa kukutshintsha iiparamitha ze-laser ephumayo, njengokuqina, ukuphindaphinda, njalo njalo.

Isibini,imodyuli ye-laserukuhlelwa
Ngokwendlela yokusebenza yemodyuli, inokwahlulwa ibeukumodareyitha kwe-electro-optic, ukumodareyitha kweacoustooptic, ukumodareyitha kwemagneto-optic kunye nokumodareyitha ngokuthe ngqo.

01 Ukumodareyitha ngokuthe ngqo
Ukuqhuba kwangoku kwesemiconductor laserokanye i-diode ekhupha ukukhanya ihlaziywa ngokuthe ngqo ngumqondiso wombane, ukwenzela ukuba ukukhanya okuphumayo kuguqulwe kunye nokutshintsha kwesignali yombane.

(1) Ukumodareyithwa kwe-TTL kwimodyuli ngqo
Umqondiso wedijithali we-TTL wongezwa kwi-laser power supply, ukwenzela ukuba i-laser drive yangoku inokulawulwa ngomqondiso wangaphandle, kwaye ke i-laser output frequency inokulawulwa.

(2) Ukuguqulwa kwe-analog kwimodyuli ngqo
Ukongeza kwi-laser unikezelo lwamandla umqondiso analog (amplitude ngaphantsi kwe-5V ngokungenasizathu utshintsho uphawu wave), ungenza igalelo uphawu lwangaphandle ombane ezahlukeneyo ehambelana laser ezahlukeneyo drive yangoku, uze ulawule imveliso laser amandla.

02 Ukumodareyitha kwe-Electro-optic
Ukumodareyitha usebenzisa i-electro-optic effect kuthiwa yi-electro-optic modulation.Isiseko somzimba sokumodareyitha kwe-electro-optic yimpembelelo ye-electro-optic, oko kukuthi, phantsi kwesenzo sommandla wombane osetyenzisiweyo, isalathiso se-refractive samanye amakristale siya kutshintsha, kwaye xa i-wave yokukhanya idlula kule ndlela, iimpawu zayo zokuhambisa ziya kutshintsha. ukuchaphazeleka kwaye utshintshwe.

03 Ukumodareyitha kweAcousto-optic
Isiseko somzimba sokumodareyitha kwe-acousto-optic sisiphumo se-acousto-optic, esibhekiselele kwinto yokuba amaza okukhanya asasazwa okanye asasazwa yintsimi yamaza angaphezu kwendalo xa esasaza phakathi.Xa isalathiso se-refractive se-medium sitshintsha ngezikhathi ezithile ukuze senze i-refractive index grating, i-diffraction iya kwenzeka xa i-wave wave isasazeka phakathi, kwaye ubukhulu, ukuphindaphinda kunye nolwalathiso lokukhanya kwe-diffractive kuya kutshintsha kunye nokutshintsha kwentsimi ye-wave wave wave.
I-Acousto-optic modulation yinkqubo yomzimba esebenzisa i-acousto-optic effect ukulayisha ulwazi kwi-optical frequency carrier.Umqondiso owenziweyo wenziwa kwi-transducer ye-electro-acoustic ngendlela yombane (i-amplitude modulation), kwaye umbane ohambelanayo wombane uguqulwa ube yintsimi ye-ultrasonic.Xa iliza lokukhanya lidlula kwi-acousto-optic medium, i-optical carrier iyamodudula ize ibe ngamandla amodulated amaza “aphethe” ulwazi.

04 Ukumodareyitha kweMagneto-optical
Ukumodareyitha kweMagneto-optic sisicelo seFaraday's electromagnetic optical rotation effect.Xa amaza okukhanya esasazeka ngemagnethi-optical medium parallel ukuya kwicala lemagnetic field, isenzeko sokujikeleza kwepolarization plane yokukhanya epolarized linearly ibizwa ngokuba kujikelezo lwemagnethi.
Intsimi yamagnetic eqhubekayo isetyenziswa kwi-medium ukufezekisa ukugcwala kwamagnetic.Isalathiso sommandla wemagnethi sikwindlela ye-axial ye-medium, kwaye ukujikeleza kweFaraday kuxhomekeke kwi-axial yangoku yamagnetic field.Ngoko ke, ngokulawula i-coil ye-high-frequency coil kunye nokutshintsha amandla ombane wemagnethi ye-axial signal, i-Angle yokujikeleza yendiza ye-vibration ye-optical inokulawulwa, ukwenzela ukuba ukukhanya kwe-amplitude ngokusebenzisa i-polarizer itshintshe kunye nokutshintsha kwe-θ Angle. , ukuze kuphunyezwe uhlengahlengiso.