Phase fluctuations in moderate to strong turbulence

Cynthia Y. Young; Aaron J. Masino; Fredrick Thomas

doi:10.1117/12.479205

30 April 2003 Phase fluctuations in moderate to strong turbulence

Cynthia Y. Young, Aaron J. Masino, Fredrick Thomas

Proceedings Volume 4976, Atmospheric Propagation; (2003) https://doi.org/10.1117/12.479205
Event: High-Power Lasers and Applications, 2003, San Jose, CA, United States

Abstract

Recently, new theory governing laser beam scintillation was developed for all regimes of optical turbulence. This theory is based on the Rytov approximation but modified with a filter function that eliminates intermediate scale sizes that do not contribute to the refractive and diffractive effects of propagation. This modification extends the validity of the Rytov approximation into moderate to strong regimes as evidenced by the agreement with simulations and experimental data. In this paper we apply this theory to the phase covariance and new expressions governing phase fluctuations are presented. The phase structure function is then compared with previous experimental data.

Citation Download Citation

Cynthia Y. Young, Aaron J. Masino, and Fredrick Thomas "Phase fluctuations in moderate to strong turbulence", Proc. SPIE 4976, Atmospheric Propagation, (30 April 2003); https://doi.org/10.1117/12.479205

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