Modulator Acousto-opticCodsiga ku jira armaajooyinka qabow ee atamka
Sida qaybta xudunta u ah isku xirka laser-fiber-ka ee golaha qaboobaha ee atomka, waaModulator fiber optic acousto-opticwaxay siin doontaa laysar joogto ah oo awood sare leh oo loogu talagalay golaha atomka qabow. Atomyadu waxay nuugi doonaan sawir-qaadayaal leh inta jeer ee resonant ee v1. Mar haddii xawliga photon-yada iyo atamka ay ka soo horjeedaan, xawaraha atamka ayaa hoos u dhici doona ka dib marka la nuugo sawir-qaadista, si loo gaaro ujeedada qaboojinta atamka. Atomyada Laser-qaboojiyey, oo leh faa'iidooyinkooda sida waqti dheer oo baaritaan ah, baabi'inta isbeddelka soo noqnoqda ee Doppler iyo isbeddelka soo noqnoqda ee ay sababaan isku dhaca, iyo isku dhafka daciifka ah ee goobta iftiinka, waxay si weyn u wanaajisaa awoodda cabbirka saxda ah ee spectra atomiga waxaana si ballaaran loogu dabaqi karaa saacadaha atomiga qabow, interferometers qabow qabow, iyo atomamka qabow, iyo kuwa kale ee beeraha.
Gudaha gudaha AOM modulator acousto-optic inta badan waxa uu ka kooban yahay crystal acousto-optic iyo collimator fiber indhaha, iwm Beddelidda sifooyinka soo-gelinta sida inta jeer iyo baaxadda calaamadda la beddeley ee wax-gelinta, waxaa la gaaraa inta jeer iyo cabbirka cabbirka laysarka wax-gelinta. Transducer-ka piezoelectric wuxuu u beddelaa calaamadaha korantada ee calaamadaha ultrasonic kuwaas oo ku kala duwan qaab isku mid ah sababtoo ah saameynta piezoelectric oo ku faafisa dhexdhexaadiyaha acousto-optic. Ka dib markii index refractive ee acousto-optic dhexdhexaad ah isbeddelo xilli, index refractive ayaa la sameeyaa. Marka laysarka uu dhex maro collimator-ka fiber-ka oo uu galo dhexdhexaadiyaha acousto-optic, kala-duwanaanshaha ayaa yimaada. Inta jeer ee iftiinka kala firdhisan ayaa kor u qaada inta jeer ee ultrasonic inta jeer ee wax gelinta asalka ah. Hagaajin booska collimator fiber indhaha si aad modulator-ka fiber-optic modulator-ka uga dhigto sida ugu fiican. Waqtigan xaadirka ah, dhacdada xagasha iftiinka iftiinka dhacdada waa inuu qanciyaa xaalada kala-duwanaanta Bragg, qaabka kala-duwanaanshaha waa inuu noqdaa Bragg diffraction. Waqtigan xaadirka ah, ku dhawaad dhammaan tamarta iftiinka dhacdada waxaa loo wareejiyaa iftiinka kala-duwanaanta ee ugu horreeya.
Modulator AOM acouto-optic ee ugu horreeya waxa loo isticmaalaa dhamaadka hore ee cod-weyneeye nidaamka, isaga oo wax ka beddelaya iftiinka gelinta joogtada ah ee ka imanaya dhamaadka hore oo leh garaac indhaha. garaaca garaaca indhaha ee la hagaajiyay ka dib waxay galaan nidaamka qaab-dhismeedkooda hab-weynida tamarta. Midda labaadModulator AOM acouto-opticwaxaa loo isticmaalaa dhamaadka dambe ee cod-weyneeye indhaha, shaqadeeduna waa in la go'doomiyo sanqadha saldhiga ah ee calaamada garaaca indhaha ee uu nidaamka xoojiyay. Cidhifyada hore iyo kan dambe ee garaaca garaaca iftiinka ee ka soo baxa modulator-ka ugu horreeya ee AOM ayaa si siman loo qaybiyay. Ka dib marka la galo cod-weyneeye indhaha, iyadoo ay ugu wacan tahay faa'iidada cod-weyneeye ee cidhifka hogaaminaya garaaca wadnaha oo ka sarreeya kan cidhifka garaaca wadnaha, garaaca iftiinka iftiinka wuxuu muujin doonaa ifafaale mawjada qaab-dhismeedka halkaasoo tamarta ay ku urursan tahay cidhifka hogaaminaya, sida ku cad Jaantus 3. Si aad awood ugu siiso nidaamka si aad u hesho garaacyada indhaha oo leh qaybinta hore ee Astaanta-OM ee hore iyo qaybinta dambe ee OM. modulator-ku wuxuu u baahan yahay inuu qaato hab-habaynta analoogga. Cutubka kantaroolka nidaamka ayaa hagaajiya cidhifka kor u kaca ee modulator-ka hore ee AOM acouto-optic si loo kordhiyo cidhifka kor u kaca ee garaaca wadnaha ee moduleka acoust-optic iyo magdhowga faa'iidada aan la mid ahayn ee cod-weyneeye indhaha ee cidhifyada hore iyo dambe ee garaaca wadnaha.
Cod-weyneyeeyaha indhaha ee nidaamka ma aha oo kaliya inuu kordhiyo calaamadaha garaaca wadnaha ee waxtarka leh, laakiin sidoo kale wuxuu kordhiyaa qaylada saldhigga ee isku xigxiga garaaca wadnaha. Si loo gaaro saamiga nidaamka sare ee calaamad-ilaa-qeylada, muujinta saamiga sare ee baabi'inta fiilada indhahaModulator AOMwaxaa loo isticmaalaa in lagu xakameeyo buuqa saldhigga ah ee dhamaadka dambe ee cod-weyneeye, iyadoo la hubinayo in garaaca calaamadaha nidaamka ay si wax ku ool ah u dhex mari karaan ilaa xadka ugu badan iyadoo laga hortagayo buuqa saldhigga inuu soo galo wakhtiga-Domain acousto-optic shutter (time-domain pulse gate). Habka habaynta dhijitaalka ah ayaa la qaatay, iyo calaamadda heerka TTL waxaa loo isticmaalaa in lagu xakameeyo dabka iyo ka baxa moduleka acoust-optic si loo hubiyo in cidhifka kor u kaca ee garaaca garaaca wakhtiga-Domain-ka ee moduleka acoust-optic waa wakhtiga kor u kaca ee loogu talagalay badeecada (ie, wakhtiga ugu yar ee kor u kaca ee alaabtu heli karto), iyo ballaca garaaca wadnaha wuxuu ku xiran yahay heerka xajmiga garaaca ee nidaamka TTL.
Waqtiga boostada: Jul-01-2025