Ka'idar aiki na acousto-optical modulator

1. Ka'idar aiki namai daidaita acousto-optic
Tushen na'urar daidaita sauti ta acousto-optical (Mai daidaita AOM) shine tasirin acousto-optic. Tsarinsa na asali ya haɗa da lu'ulu'u na acousto-optic, transducers, na'urorin sha, da direbobi. Fitar siginar lantarki ta direban ana canza ta zuwa raƙuman ultrasonic ta hanyar transducer. Lokacin da raƙuman ultrasonic suka yaɗu a cikin matsakaiciyar acousto-optic, suna haifar da canje-canje lokaci-lokaci a cikin matsakaicin yawa, suna samar da tsari kama da grating na lokaci. Lokacin da haske ya ratsa ta wannan matsakaici, diffraction yana faruwa, yana cimma daidaiton raƙuman mai ɗaukar haske. Akwai nau'ikan nau'ikan yanayin diffraction guda biyu: diffraction Raman Ness da diffraction Bragg. Mai daidaita AOM da aka saba amfani da shi yawanci yana aiki a yanayin diffraction na Bragg, inda hasken abin ya faru ya faru a wani kusurwar Bragg ta musamman kuma hasken fitarwa ya ƙunshi hasken sifili mara haske da hasken diffraction na farko tare da kusurwar karkacewa.
2. Babban sigogin fasaha na acousto-optic modulator
2.1 Ingancin diffraction da asarar daidaitawa: yana auna ikon na'ura na canza hasken da ya faru zuwa hasken da ya diffracted a tsari na farko da kuma asarar gani da ke tare da shi.
2.2 Kusurwar Bragg: Kusurwar da ta dace da ita wacce ta fi dacewa da diffraction, wacce ke da alaƙa da tsawon laser, mitar rediyo, da saurin sauti a cikin lu'ulu'u.
2.3 Mafi kyawun ƙarfin RF: watau ƙarfin jikewa, ƙarfin tuƙi na RF da ake buƙata don cimma matsakaicin ingancin diffraction. An bayar da takamaiman dabarar lissafi a cikin labarin.
2.4 Daidaita kusurwar bambanci: Domin tabbatar da ingantaccen aiki, kusurwar bambanci na laser da ya faru yana buƙatar daidaita halayen matsakaiciyar acousto-optic.
2.5 Saurin daidaitawa: yawanci ana wakilta shi ta hanyar lokacin tashi na haske, ya danganta da lokacin watsa raƙuman sauti ta cikin hasken, kuma yana da alaƙa da diamita na hasken da saurin sauti.
3. Babban aikace-aikacen masu daidaita acousto-optic
Manyan aikace-aikace guda biyar nafasahar acousto-opticssune:
3.1 Acousto optic Q-switch: an sanya shi a cikin ramin laser, yana samar da laser mai ƙarfi mai ƙarfi ta hanyar daidaita asarar rami cikin sauri.
3.2 Acousto optic modulator/switch: ana amfani da shi don daidaita ƙarfi ko sarrafa laser cikin sauri a wajen ramin laser, kuma ana iya amfani da shi azaman rufewa ko mai rage canzawa.
3.3 Mai karkatar da sauti: Ta hanyar canza mitar rediyo don karkatar da hasken laser, ana samun saurin duba haske, wanda ya dace da samun dama bazuwar ko kuma ci gaba da duba haske.
3.4 Mai canza mitar Acousto optic: an tsara shi musamman don motsa mitar laser sama ko ƙasa, kuma ana iya haɗa shi don cimma haɗakar canjin mita mai rikitarwa.
3.5 Matatar Acousto mai daidaitawa: Matatar gani mai daidaitawa ta lantarki mai ƙarfi wacce za ta iya zaɓar takamaiman raƙuman ruwa daga bakan mai faɗi cikin sauri da kuzari.tushen haske.