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Proceedings Paper

10.6-um laser heterodyne system with acousto-optic frequency modulation
Author(s): Yu Hu; Guangmin Cheng; Xian Li; Yong Zhu; Guangyong Zheng; Changgen Cheng; Minchun Li; Wang Kai
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Paper Abstract

A 10.6-micron laser heterodyne receiving system with acoustooptic frequency modulation is described. In this system, the first-order diffraction beams are used as the optical signal modulation beam in the transmitting optical terminal, a 77 K-PV-HgCdTe detector is used as heterodyne reception device in the receiving optical teminal, and the Stark cells are used in the transmission and reception terminals in order to stabilize the frequencies of local and signal laser. With the application of frequency shift key digital modulation, the terminal bit error rate is better than 10 exp -8.

Paper Details

Date Published: 9 June 1992
PDF: 10 pages
Proc. SPIE 1635, Free-Space Laser Communication Technologies IV, (9 June 1992); doi: 10.1117/12.59270
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)
Wang Kai, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 1635:
Free-Space Laser Communication Technologies IV
David L. Begley; Bernard D. Seery, Editor(s)

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