Kodi modulator ya acousto-optic ndi chiyani?

Kodi modulator ya acousto-optic ndi chiyani?AOM modulator

Kusinthasintha kwa ma acousto-optic ndi njira yosinthira ma acousto-optic yakunja. Kawirikawiri, chipangizo cha acousto-optic chomwe chimayang'anira kusintha kwa mphamvu ya kuwala kwa laser chimatchedwamodulator ya acousto-optic(AOM modulator). Chizindikiro chosinthidwa chimagwira ntchito pa electroacoustic transducer mu mawonekedwe a chizindikiro chamagetsi (amplitude modulation), kenako chimasanduka munda wa ultrasonic womwe umasintha mawonekedwe a chizindikiro chamagetsi. Mafunde owala akamadutsa mu acousto-optic medium, chifukwa cha acousto-optic effect, chonyamulira cha kuwala chimasinthidwa ndipo chimakhala mafunde osinthidwa mphamvu omwe "amanyamula" chidziwitso.

Mfundo yogwirira ntchito

Kusintha kwa ma acousto-opticndi njira yeniyeni yomwe imagwiritsa ntchito mphamvu ya acousto-optic kuyika chidziwitso pa chonyamulira ma frequency cha kuwala. Chizindikiro chosinthidwa chimagwira ntchito pa electroacoustic transducer mu mawonekedwe a chizindikiro chamagetsi (amplitude modulation), kenako chimasanduka munda wa ultrasonic womwe umasintha mawonekedwe a chizindikiro chamagetsi. Mafunde owala akamadutsa mu acousto-optic medium, chifukwa cha mphamvu ya acousto-optic, chonyamulira cha kuwala chimasinthidwa ndipo chimakhala mafunde osinthidwa mphamvu omwe "amanyamula" chidziwitso.

Chosinthira ma acousto-optic (AOM modulator) nthawi zambiri chimakhala ndi ma crystals a acousto-optic, ma transducer, zida zoyamwitsa ndi ma drivers. Chizindikiro chosinthidwa kuchokera ku driver chimagwira ntchito pa transducer mu mawonekedwe a chizindikiro chamagetsi kenako chimasanduka mafunde a ultrasonic omwe amasinthasintha mu mawonekedwe a chizindikiro chamagetsi. Pamene mafunde a ultrasonic amadutsa mu acousto-optic medium, amachititsa kuti chosinthiracho chikhale cholimba komanso chotalikirapo, zomwe zimapangitsa kuti chosinthiracho chikhale cholimba. Mtundu uwu umasintha nthawi ndi nthawi, zomwe zimapangitsa kuti chosinthiracho chiwonetse kusintha kwa kuchuluka kwa magetsi, mofanana ndi phase grating. Pamene kuwala kumadutsa mu chosinthira ichi chosokonezedwa ndi mafunde a ultrasonic, chochitika cha diffraction chimachitika. Chodabwitsa ichi chimatchedwa acousto-optic effect. Pansi pa mphamvu ya mawu ndi kuwala, chonyamulira cha kuwala chimasinthidwa ndipo chimakhala mafunde osinthidwa omwe "amanyamula" chidziwitso.

Fotokozani mwachidule magawo akuluakulu

Kugwira ntchito bwino kwa diffraction ndi kutayika kwa modulation

2. Bragg Angle: Pamene kuwala kwa ngozi kukulowetsedwa muchipangizo cha acousto-opticPa Bragg Angle, njira yabwino kwambiri yopezera diffraction ingapezeke. Zolakwika za angular zimachepetsa mphamvu.

3. Kusintha kwa ngodya ya Divergence

4. Liwiro la kusintha: Nthawi yosinthira kuwala imadziwika ndi nthawi yotumizira mafunde a mawu kudzera m'chiuno cha mtanda mu kristalo wa A0.

5. Mphamvu Yabwino Kwambiri ya RF (Mphamvu Yokhutiritsa)