Characterization and compensation of atmospheric effects on laser beams

Miranda van Iersel; Daniel A. Paulson; Nathaniel A. Ferlic; Jonathan Ko; Chensheng Wu; John R. Rzasa; Christopher C. Davis

doi:10.1117/12.2534755

7 October 2019 Characterization and compensation of atmospheric effects on laser beams

Miranda van Iersel, Daniel A. Paulson, Nathaniel A. Ferlic, Jonathan Ko, Chensheng Wu, John R. Rzasa, Christopher C. Davis

Author Affiliations +

Proceedings Volume 11161, Technologies for Optical Countermeasures XVI; 1116107 (2019) https://doi.org/10.1117/12.2534755
Event: SPIE Security + Defence, 2019, Strasbourg, France

Abstract

Optical countermeasures are widely used nowadays and quite often a laser is used as the optical source. Unfortunately such a laser beam can become severely distorted by optical turbulence when propagating through the atmosphere, resulting in effects such as beam spreading, beam wander, irradiance fluctuations, and loss of spatial coherence. These effects can be (partially) overcome using knowledge of the atmospheric conditions, as well as techniques to correct for amplitude and phase distortions. Our research focuses on the characterization of the atmospheric conditions, using adaptive optics, an in-house developed multi-aperture transmissometer, as well as a plenoptic sensor using phase distortion algorithms to compensate for effects caused by (strong) turbulence conditions.

Citation Download Citation

Miranda van Iersel, Daniel A. Paulson, Nathaniel A. Ferlic, Jonathan Ko, Chensheng Wu, John R. Rzasa, and Christopher C. Davis "Characterization and compensation of atmospheric effects on laser beams", Proc. SPIE 11161, Technologies for Optical Countermeasures XVI, 1116107 (7 October 2019); https://doi.org/10.1117/12.2534755

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