Gịnị bụ acousto-optic modulator AOM modulator

Gịnị bụ acousto-optic modulatorAOM modulator

Acousto-optic modulation bụ usoro mgbanwe nke mpụga. N'ozuzu, ngwaọrụ acousto-optic nke na-achịkwa mgbanwe ike nke eriri laser ka a na-akpọacousto optic modulator(AOM modulator). Mgbama a gbanwere na-arụ ọrụ na transducer electroacoustic n'ụdị mgbaàmà eletriki (mgbanwe njupụta), wee gbanwee ya na mpaghara ultrasonic nke na-agbanwe n'ụdị mgbaàmà eletrik. Mgbe ebili mmiri ọkụ na-agafe n'okirikiri acousto-optic, n'ihi mmetụta acousto-optic, a na-emegharị onye na-ebu ngwa anya wee ghọọ ebili mmiri na-agbanwe ike nke "na-ebu" ozi.

Ụkpụrụ ọrụ

Acousto-optic modulationbụ usoro anụ ahụ nke na-eji mmetụta acousto-optic na-ebunye ozi na ngwa ngwa ngwa anya. Mgbama a gbanwere na-arụ ọrụ na transducer electroacoustic n'ụdị mgbaàmà eletriki (mgbanwe njupụta), wee gbanwee ya na mpaghara ultrasonic nke na-agbanwe n'ụdị mgbaàmà eletrik. Mgbe ebili mmiri ọkụ na-agafe n'okirikiri acousto-optic, n'ihi mmetụta acousto-optic, a na-emegharị onye na-ebu ngwa anya wee ghọọ ebili mmiri na-agbanwe ike nke "na-ebu" ozi.

Ihe modulator acousto-optic (AOM modulator) na-ejikarị kristal acousto optic, transducers, ngwaọrụ absorption na ndị ọkwọ ụgbọala mejupụtara. Ihe ngosi mgbama a gbanwere site na onye ọkwọ ụgbọ ala na-arụ ọrụ na transducer n'ụdị mgbaàmà eletrik wee gbanwee n'ime ebili mmiri ultrasonic nke dịgasị iche n'ụdị mgbaàmà eletrik. Mgbe ultrasonic ebili mmiri na-agafe na acousto-optic media, ọ na-akpata mkpakọ mpaghara na elongation nke ọkara, na-emepụta ihe na-agbanwe agbanwe. Nsogbu a na-agbanwe kwa oge site na oge na ohere, na-eme ka onye na-ahụ maka usoro ahụ gosipụta ihe dị iche iche njupụta, dị ka grating nke oge. Mgbe ọkụ na-agafe na nke a nke ebili mmiri ultrasonic na-akpaghasị, ihe dị iche iche na-eme. A na-akpọ ihe omume a mmetụta acousto-optic. N'okpuru mmetụta nke ụda na ìhè, a na-emegharị onye na-ebu ihe anya ma ghọọ ebili mmiri na-emegharị nke "na-ebu" ozi.

Kọwaa nkenke nkenke isi paramita

Ịrụ ọrụ diffraction na mfu modulation

2. Bragg Angle: Mgbe etinyere ọkụ ihe merenụ n'ime iheacousto-optic ngwaọrụna Bragg Angle, enwere ike nweta arụmọrụ diffraction kacha mma. Njehie angular ga-ebelata arụmọrụ.

3. Ntughari n'akuku divergence

4. Modulation ọsọ: A na-akọwa oge ntụgharị anya anya site na oge nnyefe nke ụda ụda site na nku n'úkwù na kristal A0.

5. Ike RF kacha mma (ike saturation)