Yuav siv lub acousto optic modulator (AOM modulator) li cas ua lub optical switch
1. Keeb kwm yav dhau los thiab cov ntsiab lus ntawm kev txhim kho thev naus laus zis
1.1 Keeb Kwm ntawm Laser: Xyoo 1960, Theodore Meiman tau tsim thawj lub ruby laser, uas yog lub cim ntawm kev yug los ntawm cov thev naus laus zis laser.
1.2 Kev Tsim Kho Laser: Tom qab ntawd, ntau hom lasers tau tshwm sim, xws li roj lasers (xws li helium neon lasers), semiconductor laser, thiab solid-state lasers (xws li YAG lasers), maj mam nthuav lawv qhov kev siv rau tub rog, kev lag luam, thiab kev kho mob.
1.3 Kev qhia txog qhov yuav tsum tau ua tseem ceeb: Lub laser xav tau lub zog tso zis ruaj khov, thiab hauv ntau daim ntawv thov, lub laser tsis tuaj yeem ua rau lub hom phiaj tsis tu ncua. Txhawm rau kom tsis txhob hloov pauv ntau zaus ntawm lub laser nws tus kheej, lub qhov hloov kho qhov muag sab nraud tau qhia kom tswj tau lub laser rau / tawm.
2. Txoj cai ua haujlwm ntawm acousto optic modulator (AOM modulator)
AOM yog ib lub cuab yeej kho qhov muag uas siv cov nyhuv acousto-optic, qhov twg cov suab nthwv dej kis mus rau hauv ib qho nruab nrab los tsim cov kev hloov pauv ntawm cov ntsuas refractive, yog li hloov kho cov yam ntxwv ntawm cov nthwv dej teeb uas hla dhau qhov nruab nrab, xws li qhov muaj zog, zaus, thiab kev coj. Tam sim no, qhov kev tsom mus rau ob hom diffraction:
1.1 Bragg diffraction: Feem ntau yog tias lub teeb thiab suab nthwv dej tsim ib lub kaum sab xis tshwj xeeb, thiab lub zog diffraction feem ntau yog concentrated hauv thawj qib teeb, zoo ib yam li lub stereo grating. Hom no feem ntau yog siv rau cov ntawv thov hloov kho qhov muag.
1.2 Raman diffraction: Qhov kev taw qhia ntawm kev nthuav dav ntawm lub teeb thiab lub suab nthwv dej yog perpendicular, thiab lub teeb diffracted qhia txog kev faib tawm ntau theem symmetrical, zoo ib yam li lub planar grating.
3. Hom ua haujlwm ntawm AOM modulator ua qhov hloov kho qhov muag
3.1 AOM tsis thauj cov teeb liab (tsis ua haujlwm): Lub laser ncaj qha hla dhau (0-theem teeb) thiab raug nqus los ntawm daim iav reflection hauv txoj kev kho qhov muag, tsis muaj qhov tso zis zoo.
3.2 AOM loading teeb liab (ua haujlwm): diffraction yog tsim, thiab thawj-txheej xwm lub teeb raug tso tawm ntawm lub kaum sab xis thiab nkag mus rau hauv txoj kev kho qhov muag tom qab rau kev siv.
Los ntawm kev tswj xyuas seb AOM modulator puas thauj cov teeb liab, kev hloov pauv sai thiab kev hloov kho ntawm lub laser tuaj yeem ua tiav, ua tau raws li cov xwm txheej ntawm daim ntawv thov uas xav tau kev tswj hwm lub sijhawm irradiation laser.
Ntxiv rau kev siv ua lub qhov hloov kho qhov muag, AOM kuj tseem siv tau nws ob theem ntawm lub teeb los tsim kev cuam tshuam thiab tsim cov teeb liab ntaus nrig, uas tuaj yeem siv rau hauv kev ntsuas thiab lwm yam teb. Qhov kev thov rau lub zog laser ruaj khov tau ua rau muaj kev siv tshuab hloov kho qhov muag, thiab acousto optic modulators (AOM modulator) yog raws li lub hauv paus ntsiab lus thiab kev siv ntawm kev ua haujlwm hloov kho qhov muag siv cov teebmeem acousto-optic, tshwj xeeb tshaj yog hom Bragg diffraction.
Lub sijhawm tshaj tawm: Tsib Hlis-19-2026