Acousto-optic modulator: Aikace-aikacen a cikin ɗakunan zarra masu sanyi
A matsayin core bangaren na duk-fiber Laser mahada a cikin sanyi zarra majalisar ministocin, daFiber na gani Acousto-optic modulatorzai samar da high-power mita-stabilized Laser ga sanyi zarra majalisar ministocin. Atom za su sha photons tare da mitar resonant na v1. Tun lokacin da zafin photons da atom ɗin ya saba, saurin atom ɗin zai ragu bayan ɗaukar photons, don haka cimma manufar sanyaya atom. Zarra masu sanyaya Laser, tare da fa'idodin su kamar dogon lokaci na bincike, kawar da canjin mitar Doppler da canjin mitar da ke haifar da karo, da rauni mai rauni na filin ganowa, yana haɓaka madaidaicin ikon ma'aunin atom kuma ana iya amfani da shi sosai a cikin agogon atomatik mai sanyi, sanyi atomic interferometers, da sanyi atomic navigation.
Ciki na fiber na gani AOM acousto-optic modulator galibi ya ƙunshi kristal acousto-optic da na'urar fiber collimator, da dai sauransu. Siginar da aka daidaita yana aiki akan mai sarrafa piezoelectric a cikin siginar siginar lantarki (yawan daidaitawa, daidaitawa lokaci ko daidaitawar mita). Ta hanyar canza halayen shigarwa kamar mita da girman siginar da aka daidaita, ana samun mitar mitar da haɓakar haɓakar laser shigarwar. Mai watsawa na piezoelectric yana jujjuya siginar lantarki zuwa siginar ultrasonic waɗanda suka bambanta a cikin tsari iri ɗaya saboda tasirin piezoelectric kuma yana yada su a cikin matsakaici na acousto-optic. Bayan fihirisar refractive na matsakaiciyar acousto-optic tana canzawa lokaci-lokaci, ana samar da ma'anar refractive grating. Lokacin da Laser ya ratsa ta cikin fiber collimator kuma ya shiga matsakaicin acousto-optic, diffraction yana faruwa. Mitar hasken da aka watsar yana haɓaka mitar ultrasonic akan mitar Laser na asali na shigarwa. Daidaita matsayi na fiber collimator na gani don sa na'urar ƙirar fiber acoust-optic modulator yayi aiki a cikin mafi kyawun yanayi. A wannan lokacin, kusurwar abin da ya faru na hasken hasken da ya faru ya kamata ya gamsar da yanayin rarrabuwar Bragg, kuma yanayin rarrabuwar ya kamata ya zama ɓarna na Bragg. A wannan lokacin, kusan dukkanin ƙarfin hasken abin da ya faru ana canjawa wuri zuwa haske mai rarrabawa na farko.
Ana amfani da na'urar motsa jiki ta AOM ta farko a ƙarshen gaban na'urar firikwensin tsarin, yana daidaita hasken shigar da ci gaba daga ƙarshen gaba tare da bugun gani. Juyin gani na gani da aka gyara sannan su shigar da tsarin ƙara ƙarfin gani na tsarin don ƙara kuzari. Na biyuAOM auto-optic modulatorana amfani da shi a ƙarshen ƙarshen na'urar firikwensin gani, kuma aikinsa shine ware tushen amo na siginar bugun jini da tsarin ke ƙarawa. Gefen gaba da baya na fitowar fitilun haske ta na farko AOM modulator auto-optic ana rarraba su daidai gwargwado. Bayan shigar da amplifier na gani, saboda ribar da amplifier don bugun bugun bugun jini ya fi girma fiye da haka don bugun bugun bugun jini, ƙwanƙwaran haske da aka haɓaka za su nuna yanayin karkatar da motsin motsi inda makamashi ya ta'allaka ne a babban gefen, kamar yadda aka nuna a cikin Hoto 3. Don ba da damar tsarin don samun bugun jini na gani tare da rarrabawar farko-OM tare da na farko Optic. Modulator yana buƙatar ɗaukar na'urar daidaitawa ta analog. Naúrar kula da tsarin tana daidaita gefen tashi na farkon AOM acouto-optic modulator don ƙara haɓakar gefen bugun bugun bugun jini na acoust-optic module da ramawa don samun rashin daidaituwa na amplifier na gani a gefuna na gaba da baya na bugun bugun jini.
Na'urar amplifier na tsarin ba kawai yana haɓaka siginar bugun jini mai amfani ba, har ma yana ƙara sautin tushe na jerin bugun jini. Don cimma babban tsarin siginar siginar-zuwa-amo rabo, babban yanayin ɓarna na fiber na ganiAOM modulatorana amfani da shi don murkushe ƙarar tushe a ƙarshen ƙarshen amplifier, tabbatar da cewa siginar siginar tsarin na iya wucewa ta yadda ya kamata har zuwa mafi girma yayin da yake hana sautin tushe daga shigar da yanki na lokaci-yankin acousto-optic shutter (ƙofa-lokaci-yanki pulse ƙofar). Ana ɗaukar hanyar daidaitawa ta dijital, kuma ana amfani da siginar matakin TTL don sarrafa kunnawa da kashe na'urar acoust-optic don tabbatar da cewa tashin gefen lokaci-yankin bugun jini na acoust-optic module shine tsara lokacin haɓaka samfurin (watau ƙaramin lokacin tashi wanda samfurin zai iya samu), kuma faɗin bugun jini ya dogara da girman siginar TTL na tsarin.
Lokacin aikawa: Jul-01-2025