Ụkpụrụ ọrụ nke acousto-optic modulator

1. Ụkpụrụ ọrụ nkeihe modulator acousto-optic
Isi ihe modulator acousto-optic (Ihe nhazi AOM) bụ mmetụta acousto-optic. Nhazi ya bụ isi gụnyere kristal acousto-optic, transducers, ngwaọrụ absorption, na draịva. Ihe na-esi na draịva ahụ apụta na-agbanwe mmepụta mgbaàmà eletriki nke onye ọkwọ ụgbọala ahụ ka ọ bụrụ ebili mmiri ultrasonic site na transducer. Mgbe ebili mmiri ultrasonic na-agbasa na acousto-optic media, ha na-akpata mgbanwe oge na njupụta etiti, na-emepụta ihe owuwu yiri nke grating phase. Mgbe ìhè gafere na mgbasa a, diffraction na-eme, na-enweta mgbanwe nke ebili mmiri ngwa anya. E nwere ụdị ụdị diffraction abụọ: Raman Ness diffraction na Bragg diffraction. AOM modulator a na-ejikarị arụ ọrụ na-arụkarị na Bragg diffraction mode, ebe ìhè ihe merenụ bụ ihe merenụ na akụkụ Bragg kpọmkwem na ìhè mmepụta nwere ìhè efu na-enweghị ntụpọ na ìhè diffraction nke mbụ nwere akụkụ ntụgharị.
2. Isi ihe dị mkpa gbasara modulator acousto-optic
2.1 Nrụpụta Diffraction na mfu mgbanwe: na-atụle ikike ngwaọrụ nwere ịtụgharị ìhè ihe merenụ ka ọ bụrụ ìhè diffracted nke mbụ na mfu anya na-eso ya.
2.2 Nkuku Bragg: Nkuku ihe merenụ kpọmkwem nke na-enweta arụmọrụ diffraction kachasị mma, nke metụtara ogologo laser, ugboro redio, na ọsọ ụda dị n'ime kristal ahụ.
2.3 Ike RF kacha mma: ya bụ ike saturation, ike draịva RF achọrọ iji nweta arụmọrụ diffraction kachasị elu. E nyere usoro ngụkọ kpọmkwem n'isiokwu ahụ.
2.4 Mgbanwe akụkụ divergence: Iji hụ na arụmọrụ kacha mma, akụkụ divergence nke laser ihe merenụ kwesịrị ikwekọ na njirimara nke ihe na-eme acousto-optic.
2.5 Ọsọ mgbanwe: a na-anọchite anya ya site na oge mmụba nke ìhè, dabere na oge nnyefe nke ebili mmiri ụda site na ogwe ahụ, yana njikọ ya na dayameta nke ogwe ahụ na ọsọ ụda.
3. Ngwa ndị bụ isi nke acousto-optic modulators
Ngwa ise dị mkpa nketeknụzụ acousto-opticbụ:
3.1 Acousto optic Q-switch: etinyere ya n'ime oghere laser ahụ, ọ na-emepụta laser ike dị elu nke nwere ike pulsed site na ịgbanwe mfu oghere ngwa ngwa.
3.2 Acousto optic modulator/switch: eji ya maka nhazi ike ma ọ bụ njikwa ngwa ngwa nke laser n'èzí oghere laser, a pụkwara iji ya dị ka ihe mkpuchi ma ọ bụ ihe na-ebelata mgbanwe.
3.3 Ihe na-agbanwe ọkụ anya nke a na-akpọ "Acoustic optic deflector": Site n'ịgbanwe ugboro redio iji gbanwee ọkụ laser ahụ, a na-enweta nyocha ọkụ ngwa ngwa, nke dabara adaba maka ịnweta enweghị usoro ma ọ bụ nyocha na-aga n'ihu.
3.4 Acousto optic frequency shifter: emebere ya kpọmkwem iji bugharịa laser frequency elu ma ọ bụ ala, enwere ike ịgbasa ya iji nweta njikọta mgbanwe ugboro ugboro dị mgbagwoju anya.
3.5 Acousto optic Nzacha Agbanwe: Nzacha anya eletrọniki siri ike nke nwere ike ịhọrọ ogologo ebili mmiri kpọmkwem site na ọtụtụ ụdịdị dị iche iche ngwa ngwa na n'ụzọ dị iche iche.isi iyi ọkụ.