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Proceedings Paper

Design and calculation of ground-to-air transmitting optical system of carbon-dioxide laser communicator
Author(s): Hongtao Zhang; FuChang Yin; Qiugui Wang
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Paper Abstract

Transmitting optical system was part of"maneuverable type Carbon-Dioxide atmospheric Laser Communicator", which consists of Carbon-Dioxide laser, acousto-optical modulator, focusing lens, collimating lens and transmitting antenna. Ground-to-air communication distance up to 15km, error bit rate no more than 10-9. Image and speech can be transmitted separately with half duplex. Method for design major optical devices of ground-to-air laser communication transmitter, such as laser, optical lens, modulator and transmitting antenna was analyzed in the paper. The principle technical index of acousto-optical modulator and Cassegrainian antenna which determine decisively to transmitting optical system were detailed calculation. Experiment curve of acousto-optical modulator with germanium material versus carbon-dioxide laser beam, for instance, modulation bandwidth, diffraction efficiency and modulation linear was measured. At last, gain and efficiency of reflective Cassegrainian antenna were explored.

Paper Details

Date Published: 30 August 2002
PDF: 4 pages
Proc. SPIE 4924, Holography, Diffractive Optics, and Applications, (30 August 2002); doi: 10.1117/12.481534
Show Author Affiliations
Hongtao Zhang, Changchun Institute of Optics and Fine Mechanics (China)
FuChang Yin, Changchun Institute of Optics and Fine Mechanics (China)
Qiugui Wang, People's Liberation Army (China)

Published in SPIE Proceedings Vol. 4924:
Holography, Diffractive Optics, and Applications
Dahsiung Hsu; Jiabi Chen; Yunlong Sheng, Editor(s)

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