Modulator ea acousto-optic ke engAOM modulator
Acousto-optic modulation ke mokhoa oa ho feto-fetoha oa kantle. Ka kakaretso, sesebelisoa sa acousto-optic se laolang phapang ea matla a lebone la laser se bitsoamodulator ea acousto-optic(AOM modulator). Letšoao le fetotsoeng le sebetsa ho transducer ea electroacoustic ka mokhoa oa lets'oao la motlakase (amplitude modulation), ebe e fetoloa sebaka sa ultrasonic se fetohang ka sebopeho sa lets'oao la motlakase. Ha maqhubu a khanya a feta har'a acousto-optic medium, ka lebaka la phello ea acousto-optic, mochine oa optical o fetoloa 'me o fetoha leqhubu le matla le "jarang" tlhahisoleseding.
Molao-motheo oa ho sebetsa
Acousto-optic modulationke ts'ebetso ea 'mele e sebelisang phello ea acousto-optic ho kenya tlhahisoleseling ho mochini o tsamaisang maqhubu. Letšoao le fetotsoeng le sebetsa ho transducer ea electroacoustic ka mokhoa oa lets'oao la motlakase (amplitude modulation), ebe e fetoloa sebaka sa ultrasonic se fetohang ka sebopeho sa lets'oao la motlakase. Ha maqhubu a khanya a feta har'a acousto-optic medium, ka lebaka la phello ea acousto-optic, mochine oa optical o fetoloa 'me o fetoha leqhubu le matla le "jarang" tlhahisoleseding.
Acousto-optic modulator (AOM modulator) hangata e entsoe ka likristale tsa acousto-optic, li-transducers, lisebelisoa tsa ho monya le bakhanni. Sehlahisoa sa modulated se tsoang ho mokhanni se sebetsa ho transducer ka mokhoa oa lets'oao la motlakase ebe se fetoloa leqhubu la ultrasonic le fapaneng ka sebopeho sa lets'oao la motlakase. Ha leqhubu la ultrasonic le feta har'a acousto-optic medium, le baka khatello ea sebakeng seo le ho lelefatsa ha mahareng, ho hlahisa khatello ea elastic. Mofuta ona o fetoha nako le nako ho latela nako le sebaka, e leng se etsang hore karolo e bohareng e bonts'e ts'ebetso e fapaneng ea ho teteana, joalo ka karolo ea grating. Ha leseli le feta ka har'a mokhoa ona o ferekanngoa ke maqhubu a ultrasonic, ketsahalo ea diffraction e etsahala. Ketsahalo ena e bitsoa phello ea acousto-optic. Tlas'a phello ea molumo le leseli, mochine oa optical o fetotsoe 'me o fetoha leqhubu le fetotsoeng le "jarang" tlhahisoleseding.
Ka bokhutšoanyane hlalosa liparamente tse kholo
Ho sebetsa hantle ha diffraction le tahlehelo ea modulation
2. Bragg Angle: Ha leseli la ketsahalo le kenngoa ka har'asesebelisoa sa acousto-opticho Bragg Angle, katleho e ntle ka ho fetisisa ea diffraction e ka finyelloa. Liphoso tsa angular li tla fokotsa katleho.
3. Divergence Angle ikamahanya le maemo
4. Lebelo la ho feto-fetoha ha molumo: Nako ea ho fetola optical e hlalosoa ke nako ea phetisetso ea leqhubu la molumo ka letheka la sefate ka kristale ea A0.
5. Matla a RF a nepahetseng (Saturation Power)
Nako ea poso: Jun-04-2025