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Proceedings Paper

Heterodyne receiving technology for 10.6-um laser
Author(s): Yu Hu; Guangmin Cheng; Xian Li; Yong Zhu; Guangyong Zheng; Changgen Cheng; Minchun Li
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Paper Abstract

In this paper we discuss the heterodyne receiving technology at the band of 10.6 micrometers for single and double tubes and compare the two receiving methods. For an acousto-optic modulation receiving system, we have analyzed the collimation alignment and matching technology of signal optical field. The structure and design of the antenna are also analyzed. Furthermore, the frequency stabilization is analyzed for a double-tube heterodyne system. On the condition of seim-all-weather, the outer field experiments have been taken out, and the terminal signal to noise (S/N) ratio is proven to be better than approximately 50 dB for the analogue FM/FM (electric FM/optical FM) and digital FM/FSK (electrical FM/optical frequency shift key) systems. The terminal bit error rate is better than 10-8. It's very important to develop the technology for 10.6 micrometers laser heterodyne detection.

Paper Details

Date Published: 11 May 1993
PDF: 8 pages
Proc. SPIE 1979, 1992 International Conference on Lasers and Optoelectronics, (11 May 1993); doi: 10.1117/12.144083
Show Author Affiliations
Yu Hu, Univ. of Electronic Science and Technology of China (China)
Guangmin Cheng, Univ. of Electronic Science and Technology of China (China)
Xian Li, Univ. of Electronic Science and Technology of China (China)
Yong Zhu, Univ. of Electronic Science and Technology of China (China)
Guangyong Zheng, Univ. of Electronic Science and Technology of China (China)
Changgen Cheng, Univ. of Electronic Science and Technology of China (China)
Minchun Li, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 1979:
1992 International Conference on Lasers and Optoelectronics

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