Kapangidwe ka dongosolo la acousto-optical modulator

Kapangidwe ka dongosolo lamodulator ya acousto-optical
Acoustic Optical Modulator (AOM Modulator) pakadali pano ndi chipangizo chogwiritsidwa ntchito kwambiri chosinthira mawu chomwe chili kunja kwa laser cavity, chomwe chili mu dongosolo laukadaulo wakunja. Chimadalira mphamvu ya acousto-optic coupling kuti chikwaniritse kuyatsa/kuzima kwa kuwala, mphamvu ndi kuwongolera ma frequency. Ndi njira yosinthira mawu yomwe imagwiritsidwa ntchito kwambiri pakulemba ma laser a mafakitale, kudula molondola, njira yowunikira yofufuza zasayansi, komanso zida zazing'ono komanso zapakati za radar ya laser.
Kapangidwe ka dongosolo,
Zonsekusintha kwa acousto-opticDongosololi lili ndi mayunitsi asanu akuluakulu: acousto-optic crystal, piezoelectric transducer, RF drive source, heat dissipation base, ndi optical coupling base. Module iliyonse imagwira ntchito limodzi kuti iwonetsetse kuti modulation ndi yokhazikika.
1. Acousto optic crystal: Chonyamulira chachikulu cha acousto-optic interaction, chomwe ndi chinthu chofunikira kwambiri chomwe chimatsimikizira modulation frequency band, transmission frequency band, ndi damage threshold. Ma crystal omwe amagwiritsidwa ntchito nthawi zambiri amagawidwa m'magulu atatu: fused quartz yoyenera laser ya 1064nm/CO ₂, yoyenera mafakitale amphamvu kwambiri; TeO ₂ ili ndi makhalidwe abwino apamwamba kwambiri ndipo ndi kasinthidwe kokhazikika ka makina ang'onoang'ono ndi apakatikati olembera mphamvu; Gallium phosphide imagwirizana ndi 355nm ultraviolet laser kuti igwiritsidwe ntchito molondola.
2. Chosinthira magetsi cha Piezoelectric: chimamatidwa pamwamba pa galasi kuti chisinthe mphamvu zamagetsi, zinthu zapamwamba zimagwiritsa ntchito njira yowotcherera ya vacuum yotsika kutentha kuti iwonjezere kudalirika.
3. Gwero la dalaivala wa RF: chigawo chowongolera zamagetsi, chogawidwa m'magulu awiri: Dalaivala wa digito wa TTL amadalira milingo yapamwamba ndi yotsika kuti ayatse ndikuzimitsa RF, yomwe ndi njira yayikulu yogwiritsira ntchito polemba chizindikiro cha mafakitale; Kuyendetsa koyeserera kumakwaniritsa kusintha kosalekeza kwa mphamvu ya kuwala mwa kusintha mphamvu ya RF, yomwe imagwiritsidwa ntchito kwambiri mu kafukufuku wasayansi. Ma frequency oyendetsa wamba ndi 20MHz ~ 400MHz.
4. Maziko otenthetsera kutentha: amphamvu kwambiriAOM Modulatorndi kuziziritsa kwa madzi, kuziziritsa kwa mpweya wa aluminiyamu kuti pakhale mphamvu yaying'ono ndi yapakatikati kuti tipewe kuwonongeka kwa kutentha kwamphamvu kwa diffraction.
5. Optical Base: Chojambula cholondola chomwe chingathe kusintha ngodya ya ngozi kuti zitsimikizire kuti laser yachitika pa ngodya ya Bragg.