Phase-only correction of scintillated laser beams: downrange experimental results

Lenore J. McMackin; John D. Gonglewski; Boris P. Venet; Mark P. Jelonek; James M. Spinhirne; Raymond C. Dymale; Kenneth P. Bishop; Michael D. Oliker

doi:10.1117/12.154894

15 September 1993 Phase-only correction of scintillated laser beams: downrange experimental results

Lenore J. McMackin, John D. Gonglewski, Boris P. Venet, Mark P. Jelonek, James M. Spinhirne, Raymond C. Dymale, Kenneth P. Bishop, Michael D. Oliker

Author Affiliations +

Proceedings Volume 1968, Atmospheric Propagation and Remote Sensing II; (1993) https://doi.org/10.1117/12.154894
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

Abstract

We present the results of a Horizontal Propagation Experiment (HoPE) that was performed at the Phillips Laboratory Starfire Optical Range. In this experiment a laser beam was phase corrected using an adaptive optics system located at the transmitting site and focused toward a target located two miles away. Irradiance patterns of the corrected and uncorrected beam were recorded at the target site. Weather and atmospheric turbulence characteristics along the optical path were recorded at the same time. Strehl ratios calculated from the recorded images show that phase-only correction of a horizontally propagated laser beam can significantly improve the energy collected on-axis even under strongly scintillated conditions. Time- averaged strehl ratios were improved by as much as a factor of 5. Improvements in strehl for varying turbulence conditions and the effect of hardware limitations on the results are discussed.

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Lenore J. McMackin, John D. Gonglewski, Boris P. Venet, Mark P. Jelonek, James M. Spinhirne, Raymond C. Dymale, Kenneth P. Bishop, and Michael D. Oliker "Phase-only correction of scintillated laser beams: downrange experimental results", Proc. SPIE 1968, Atmospheric Propagation and Remote Sensing II, (15 September 1993); https://doi.org/10.1117/12.154894

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