The affection analysis and compensation for atmospheric overfall in free space optical communication system

Xiuhua Yuan; Jin Wang; Dexiu Huang; Deming Liu

doi:10.1117/12.580480

23 December 2004 The affection analysis and compensation for atmospheric overfall in free space optical communication system

Xiuhua Yuan, Jin Wang, Dexiu Huang, Deming Liu

Author Affiliations +

Proceedings Volume 5639, Adaptive Optics and Applications III; (2004) https://doi.org/10.1117/12.580480
Event: Photonics Asia, 2004, Beijing, China

Abstract

The Free Space optical communication (FSO) or wireless optical communication, utilizes the atmospheric medium as transmission channel, where random variety such as fog, atomy and atmosphere flash and the atmospheric turbulence will badly affect the propagation of light, the receiving signal is easily swung and drifted with the change of weather. In this paper, we discussed the attenuation of the atmospheric channel and analyzed the signal characteristics in the condition of the atmospheric overfall, for the OOK modulation, discussed the receiving signal distribution in the atmospheric channel taking account for the noise gain of the light detector, and based on the principle of the Hartman-Shack sensor, we designed a wave-front distortion compensation system with fiber coupler. The signal fading resulted from wave-front phase distortion was compensated effectively by using the compensation system.

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Xiuhua Yuan, Jin Wang, Dexiu Huang, and Deming Liu "The affection analysis and compensation for atmospheric overfall in free space optical communication system", Proc. SPIE 5639, Adaptive Optics and Applications III, (23 December 2004); https://doi.org/10.1117/12.580480

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