Title

Speckle Propagation Through Atmospheric Turbulence: Effects Of A Random Phase Screen At The Source

Abstract

By using ABCD ray matrix theory and a random phase screen located near the source, analytic expression are developed for the mutual coherence function and scintillation index of a Gaussian-beam wave propagating through weak atmospheric turbulence in both the pupil plane and image plane of a receiving system. The phase screen model that we use is based on a previous double-pass analysis by the authors for analyzing speckle propagation from a rough target in a lidar system. In the present context, it serves as a model for a partially coherent Gaussian-beam wave that is currently used in laser communications. The effect of partial coherence (induced by a diffuser) on the scintillation index of the beam in the presence of weak atmospheric turbulence is investigated as a function of the correlation length of the diffuser and the propagation distance.

Publication Date

12-1-2002

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

4821

Number of Pages

98-109

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.452054

Socpus ID

0036996258 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0036996258

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