Experiments on Noncritical Optical-Heterodyning Using Two Successive Ultrasonic Light Modulators
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概要
- 論文の詳細を見る
An optical system consisting only of a pair of successive ultrasonic light modulators is studied experimentally to simply generate a stable beating signal. The beat frequency is given by the difference between the two ultrasonic frequencies. When the second modulator, operating at 7.0 MHz is inclined with respect to the first fixed modulator operating at 8.0 MHz, the angular tolerance between these modulators is about ±3×10^<-2> radian for a beat of 1 MHz. These values are in good agreement with theoretical values. The angular tolerance can be simply evaluated from the first root υ=0 of the equation J_1(υ)=0 associated with the Bessel function of the first order, υ being the Raman-Nath parameter for the oblique incidence of light. Similar results are obtained from another beat of 50 kHz produced by a pair of ultrasonic waves of 9.60 and 9.55 MHz.
- 社団法人応用物理学会の論文
- 1973-06-05
著者
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Sasaki Issei
Department Of Engineering Science Faculty Of Engineering Hokkaido University
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OHTSUKA Yoshihiro
Department of Applied Physics, Faculty of Engineering, Hokkaido University
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Ohtsuka Yoshihiro
Department Of Applied Physics Faculty Of Engineering Osaka University
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Ohtsuka Yoshihiro
Department Of Applied Physics Faculty Of Engineering Hokkaido University
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