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应用科学学报 ›› 1988, Vol. 6 ›› Issue (1): 86-90.

• 论文 • 上一篇    下一篇

用于射电频谱分析的高分辨率TeO2声光偏转器

黄庚辰1, 王京生2, 赵国珍1   

  1. 1. 中国科学院上海硅酸盐研究所;
    2. Yunnan Observatory, Academia Sinica
  • 收稿日期:1985-05-03 修回日期:1985-09-02 出版日期:1988-03-31 发布日期:1988-03-31

A HIGH RESOLUTION TeO2 ACOUSTO-OPTIC DEFLECTOR FOR RAD IO SPECTRAL ANALYSIS

HUANG GENGCHEN1, ZHAO GUOZHBN2, WANG JINGSHENG1   

  1. 1. Shanghai Institute of Ceramics, Academia Sinica;
    2. Yunnan Observatory, Academia Sinica
  • Received:1985-05-03 Revised:1985-09-02 Online:1988-03-31 Published:1988-03-31

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摘要： 七十年代前后,由于新型固体声光材料的发现和高频超声技术的进步,声光技术得到迅速发展.随机光偏转和多频谱工作模式以及小信号工作时的优良线性,为电信号的光学模拟过程提供了很好的方法.

Abstract: A high resolution TeO2 acousto-optical deflector for radio spectral analysis was designed and manufactured according to the principle of off-axis abnormal Bragg diffraction. The theoretical resolution is 19kHz, while in practice, a resolution of 28.5kHz was achieved. The 1dB bandwidth is 22MHz. The deflection is a linear function of input power up to 100mW. An acousto-optical spectrograph with TeO2 deflector was constructed and an excellent result in the observation of dark cloud was obtained.