Ihe modulator Acousto-opticNgwa n'ime kabọd atọm oyi
Dịka akụkụ bụ isi nke njikọ laser eriri niile dị na kabinet atọm oyi,eriri anya acousto-optic modulatorga-enye laser nke nwere ike dị elu maka kabinet atọm oyi. Atọm ga-amịkọrọ photons na ugboro resonant nke v1. Ebe ọ bụ na ọsọ nke photons na atọm dị iche, ọsọ nke atọm ga-ebelata mgbe ha mịkọrọ photons, si otú a na-emezu ebumnuche nke atọm oyi. Atọm ndị a na-eji laser eme ka ha dị jụụ, yana uru ha dị ka oge nyocha ogologo, iwepụ mgbanwe ugboro Doppler na mgbanwe ugboro ugboro nke ihe mberede kpatara, na njikọ adịghị ike nke ubi ọkụ nchọpụta, na-eme ka ikike nha nke atọm dịkwuo mma nke ukwuu ma enwere ike itinye ya n'ọrụ nke ukwuu na elekere atọm oyi, interferometers atọm oyi, na ịnyagharị atọm oyi, n'etiti ubi ndị ọzọ.
Ime nke eriri anya AOM acousto-optic modulator bụ isi ihe mejupụtara kristal acousto-optic na eriri anya collimator, wdg. Mgbaàmà a gbanwere na-arụ ọrụ na piezoelectric transducer n'ụdị mgbaàmà eletriki (mmụgharị amplitude, nhazi usoro ma ọ bụ mgbanwe ugboro). Site na ịgbanwe njirimara ntinye dịka ugboro na oke nke mgbaama a gbanwere ntinye, a na-enweta mgbanwe ugboro na oke nke laser ntinye. Transducer piezoelectric na-agbanwe mgbaama eletriki ka ọ bụrụ akara ultrasonic nke na-agbanwe agbanwe n'otu ụkpụrụ n'ihi mmetụta piezoelectric ma na-agbasa ha na acousto-optic media. Mgbe ntinye refractive nke acousto-optic media na-agbanwe mgbe niile, a na-emepụta grating index refractive. Mgbe laser gafere eriri collimator wee banye na acousto-optic media, diffraction na-eme. Ugboro nke ìhè diffracted na-etinye ugboro ultrasonic na ugboro laser ntinye mbụ. Gbanwee ọnọdụ nke eriri anya collimator iji mee ka eriri anya acoust-optic modulator rụọ ọrụ n'ọnọdụ kacha mma. N'oge a, akụkụ ìhè ihe mberede nke ihe mberede kwesịrị imezu ọnọdụ diffraction Bragg, ọnọdụ diffraction kwesịrị ịbụ diffraction Bragg. N'oge a, a na-ebufe ihe fọrọ nke nta ka ọ bụrụ ike niile nke ìhè ihe mberede ahụ na ìhè diffraction nke mbụ.
A na-eji ihe modulator AOM acouto-optic mbụ eme ihe n'akụkụ ihu nke ihe nkwado optical nke sistemụ ahụ, na-agbanwe ìhè ntinye na-aga n'ihu site na njedebe ihu site na iji ihe nkwado optical. Ihe nkwado optical ndị a gbanwere agbanwe na-abanye na modulu nkwalite optical nke sistemụ ahụ maka mmụba ike. Nke abụọIhe modulator acouto-optic AOMA na-eji ya na njedebe azụ nke amplifier optical, ọrụ ya bụ ịchọpụta mkpọtụ ntọala nke akara mkpali optical nke sistemụ ahụ mụbara. A na-ekesa akụkụ ihu na azụ nke mmepụta ọkụ site na AOM acouto-optic modulator mbụ n'ụzọ ziri ezi. Mgbe ịbanye na amplifier optical, n'ihi uru nke amplifier maka akụkụ ndu pulse dị elu karịa nke maka akụkụ ndu pulse, pulses ọkụ agbakwunyere ga-egosi ihe na-agbanwe agbanwe ebili mmiri ebe ike dị na nsọtụ ụzọ, dịka egosiri na Foto 3. Iji mee ka sistemụ ahụ nwee ike inweta pulses optical nwere nkesa symmetrical na nsọtụ ihu na azụ, AOM acouto-optic modulator mbụ kwesịrị ịnakwere modulation analog. Ngalaba njikwa sistemụ na-agbanwe nsọtụ elu nke AOM acouto-optic modulator mbụ iji mee ka nsọtụ elu nke pulse optical nke modulu acoust-optic dịkwuo elu ma kwụọ ụgwọ maka uru na-adịghị nhata nke amplifier optical na nsọtụ ihu na azụ nke pulse.
Ngwa amplifier optical nke sistemụ ahụ abụghị naanị na ọ na-eme ka akara mkpali optical bara uru dịkwuo elu, kamakwa ọ na-eme ka mkpọtụ ntọala nke usoro mkpali dịkwuo elu. Iji nweta oke mgbaàmà-na-mkpọtụ sistemụ dị elu, njirimara oke mbibi dị elu nke eriri optical.Ihe nhazi AOMA na-eji ya emechi mkpọtụ ntọala dị n'azụ nke amplifier ahụ, na-ahụ na mkpali mgbaàmà sistemụ ahụ nwere ike ịgafe nke ọma ruo n'ókè kachasị elu ebe ọ na-egbochi mkpọtụ ntọala ịbanye na shutter acousto-optic nke oge (ọnụ ụzọ pulse mpaghara oge). A na-eji usoro nhazi dijitalụ eme ihe, a na-ejikwa akara ọkwa TTL achịkwa mgbanye na mwepụ nke modulu acoust-optic iji hụ na nsọtụ ịrị elu nke pulse mpaghara oge nke modulu acoust-optic bụ oge ịrị elu nke ngwaahịa ahụ (ya bụ, oge ịrị elu kacha nta nke ngwaahịa ahụ nwere ike inweta), obosara pulse dabere na obosara pulse nke akara ọkwa TTL sistemụ ahụ.
Oge ozi: Julaị-01-2025