Efficiency comparison of spatial and spectral diversity techniques for fading mitigation in free-space optical communications over tactical-range distances

Jean Minet; Mikhail A. Vorontsov; G. Wu; Daniel Dolfi

doi:10.1117/12.2007321

19 March 2013 Efficiency comparison of spatial and spectral diversity techniques for fading mitigation in free-space optical communications over tactical-range distances

Jean Minet, Mikhail A. Vorontsov, G. Wu, Daniel Dolfi

Author Affiliations +

Proceedings Volume 8610, Free-Space Laser Communication and Atmospheric Propagation XXV; 86100X (2013) https://doi.org/10.1117/12.2007321
Event: SPIE LASE, 2013, San Francisco, California, United States

Abstract

In long-range situations, the performance of free-space optical (FSO) communication links is strongly impacted by atmospheric turbulence. In this paper we compare efficiency of turbulence effects mitigation in FSO communication links using spectral (wavelength) and spatial diversity techniques. Numerical analysis of both techniques is performed considering FSO communication setting with single-mode fiber-collimator transceivers. In the case of spectral diversity setting, the fiber-collimators are based on the use of photonic crystal fibers that provide single-mode operation for three distinct wavelengths (532, 1064 and 1550nm). In the spatial diversity communication setting, analysis is performed using multiple-transceiver configurations. Analysis includes both received signal's statistical and temporal spectral characteristics.

Citation Download Citation

Jean Minet, Mikhail A. Vorontsov, G. Wu, and Daniel Dolfi "Efficiency comparison of spatial and spectral diversity techniques for fading mitigation in free-space optical communications over tactical-range distances", Proc. SPIE 8610, Free-Space Laser Communication and Atmospheric Propagation XXV, 86100X (19 March 2013); https://doi.org/10.1117/12.2007321

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