Heterodyne receiving technology for 10.6-um laser

Yu Hu; Guangmin Cheng; Xian Li; Yong Zhu; Guangyong Zheng; Changgen Cheng; Minchun Li

doi:10.1117/12.144083

11 May 1993 Heterodyne receiving technology for 10.6-μm laser

Yu Hu, Guangmin Cheng, Xian Li, Yong Zhu, Guangyong Zheng, Changgen Cheng, Minchun Li

Proceedings Volume 1979, 1992 International Conference on Lasers and Optoelectronics; (1993) https://doi.org/10.1117/12.144083
Event: 1992 International Conference on Lasers and Optoelectronics, 1992, Bejing, China

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.

Citation Download Citation

Yu Hu, Guangmin Cheng, Xian Li, Yong Zhu, Guangyong Zheng, Changgen Cheng, and Minchun Li "Heterodyne receiving technology for 10.6-μm laser", Proc. SPIE 1979, 1992 International Conference on Lasers and Optoelectronics, (11 May 1993); https://doi.org/10.1117/12.144083

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