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 kokuveliswa 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 ukuguqula iiparamitha ze-laser yokuphuma, 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) Ukumodareyitha 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 kumbindi 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.