Research of diversity receiving in wireless laser communications

Abstract

Based on aperture averaging effects on scintillation, a diversity reception system consisting of three apertures has been designed. The transmitted laser beam (λ=1.06 μm) propagates for 3 km, and is received through apertures with different sizes. Various numbers and configurations of apertures are studied to investigate the received laser beam’s spatial profile and quality. Our results show that the diversity reception system with three apertures can suppress atmospheric scintillation with relatively simple configuration and low cost.

Keywords

Orthogonal Frequency Division Multiplex / Aperture Size / Optical Intensity / Transmitted Laser Beam / Atmosphere Refractive Index

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