Nidaamka kala soocida iyo habaynta ee modulator laser

Nidaamka kala soocida iyo habaynta ee modulator laser

Modulator laserwaa nooc ka mid ah qaybaha laser-ka ee kantaroolka, ma aha sida aasaasiga ah sida crystals, lenses iyo qaybaha kale, ama sida aad u isku dhafan sida lasers,qalabka laser, waa heer sare oo isdhexgalka, noocyada iyo hawlaha alaabta fasalka qalabka. Laga soo bilaabo muujinta adag ee hirarka iftiinka, waxaa la arki karaa in arrimaha saameeya hirarka iftiinka ay yihiin xoojinta A (r), marxaladda Φ (r), inta jeer ee ω iyo afar qaybood oo ah jihada faafinta, iyada oo la xakameynayo arrimahan waxay bedeli karaan xaaladda mawjada iftiinka, modulator laser u dhigma waamodulator xoojinta, modulator wejiga, beddelka soo noqnoqda iyo leexiyaha.

1. Intensity modulator: waxaa loo isticmaalaa in lagu beddelo xoojinta ama baaxadda laysarka, kuwaas oo attenuators indhaha, albaabbada indhaha ayaa ah kuwa ugu badan ee metelaya, iyo sidoo kale qalabyada iyo qalabka isku dhafan sida waqti qaybiyeyaasha, xasiliyeyaasha awoodda, qaylada qaylada.

2. Modulator-ka wajiga: waxaa loo isticmaalaa in lagu xakameeyo wejiga iftiinka, korodhka wajiga waxaa loo yaqaan 'lag', hoos u dhaca marxaladda waxaa loo yaqaan 'lead'. Waxaa jira noocyo badan oo ah modulators wejiga, iyo mabaadi'dooda shaqadu aad bay u kala duwan yihiin, sida modulators photoelastic, LN-xawaaraha sare ee electro-optical modulators, warqadaha dib u dhigista isbeddelka isbeddelka dareeraha, iwm., dhammaan modulators wejiga oo ku salaysan mabaadi'da shaqo ee kala duwan.

3. Soo noqnoqoshada soo noqnoqda: waxaa loo isticmaalaa in lagu beddelo inta jeer ee hirarka iftiinka, waxaa si weyn loogu isticmaalaa nidaamyada laser-dhamaadka sare ama qalabka khariidadda, oo leh wareegtada acousto-optical soo noqnoqda oo ah wakiil caadi ah.

4. Deflector: waxaa loo isticmaalaa in lagu beddelo jihada faafinta iftiinka, nidaamka galvanometer-ka caadiga ah waa mid ka mid ah, marka lagu daro mems galvanometer-ka degdega ah, leexiyaha elektaroonigga ah iyo acousto-optical deflector.

Waxaan haynaa fikrad guud oo ku saabsan modulator laser, taas oo ah, qaybaha si firfircoon u xakameyn kara oo beddeli kara qaar ka mid ah sifooyinka jireed ee laysarka, laakiin waxay rabaan inay si buuxda u soo bandhigaan alaabta gaarka ah ee modulator laser, kaliya maqaal ayaa ka fog ku filan. Marka, marka hore, diirada saar modulator-ka xoojinta. Modulator xoojinta sida nooc ka mid ah modulator-ka si ballaaran loo isticmaalo dhammaan noocyada nidaamyada indhaha, kala duwanaanshaheeda, waxqabadka kala duwan waxaa lagu tilmaami karaa mid adag, maanta si aan kuu soo bandhigo afar nidaam modulator xoojinta caadiga ah: nidaamka farsamada, nidaamka electro-optic, nidaamka acousto-optic iyo nidaamka crystal dareeraha.

1. Nidaamka makaanikada: modulator-ka xoogga farsamada waa modulator-ka xoogga ugu horreeya uguna badan ee la isticmaalo. Mabda'a ayaa ah in la beddelo saamiga s iftiinka iyo iftiinka p iftiinka iftiinka iyadoo la beddelayo saxanka nuska ah, iyo in loo qaybiyo iftiinka by polarizer. Laga soo bilaabo habaynta buug-gacmeedka bilawga ah ilaa tan aadka toos u toosan iyo saxnaanta sare ee maanta, noocyadeeda badeecada iyo horumarinta codsiyadeedu waxay ahaayeen kuwo aad u bislaaday.

2. Nidaamka Electro-optical: modulator-ka xooga-kormeeraha indhaha ayaa bedeli kara xoojinta ama xajmiga iftiinka iftiinka, mabda'a wuxuu ku salaysan yahay saameynta Pockels ee crystals electro-optical. Xaalada polarization ee laydhka dabaylaha ayaa isbedelaya ka dib markii kristaalka elektro-optic ee leh beerta korantada lagu dabaqo, ka dibna polarization-ka ayaa si door ah loo qaybiyaa polarizer-ka. Xoogga iftiinka iftiinka ayaa lagu xakameyn karaa iyada oo la beddelo xoogga goobta korontada, iyo kor u kaca / dhicidda cirifka ns waa la gaari karaa.

3. Nidaamka acousto-optic: modulator-ka acousto-optic waxa kale oo loo isticmaali karaa sidii modulator xoojinta. Beddelidda waxtarka kala-duwanaanta, awoodda 0 iftiinka iyo iftiinka 1 waa la xakameyn karaa si loo gaaro ujeedada hagaajinta xoogga iftiinka. Albaabka Acoustooptic (attenuator indhaha) ayaa leh sifooyinka xawaaraha wax ka beddelka degdega ah iyo heerka dhaawaca sare.

4 xal crystal dareere ah: Aaladda crystal dareere waxaa inta badan loo isticmaalaa sida saxan mawjada variable ama filter tunable, by codsanaya danab drive ee labada daraf ee sanduuqa crystal dareere ah in lagu daro element polarization sax ah, waxaa laga samayn karaa galay shutter crystal dareere ah ama attenuator variable, alaabtu waxay leedahay dalool weyn iyada oo loo marayo iftiinka, sifooyinka kalsoonida sare.