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2 October 2018 Characteristics of the USLP based beacon for laser beam control
Vladimir Markov, Joshua Isaacs, Phillip Sprangle, Anatoliy Khizhnyak, Michael Helle, Joseph Penano
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Proceedings Volume 10770, Laser Communication and Propagation through the Atmosphere and Oceans VII; 107700A (2018) https://doi.org/10.1117/12.2320357
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States
Abstract
Effective performance of laser systems intended for power delivery on a distant object requires an adaptive optics system to correct the laser beam distortions caused by atmospheric perturbations along the propagation path. The turbulence-induced effects are responsible for beam wobbling, wandering, and intensity scintillation, resulting in degradation of the beam quality and decline of the power density on the target. Adaptive optics methods are used to compensate these negative effects. In its turn, operation of the Adaptive Optics System (AOS) requires a reference wave that can be generated by the beacon on the target. This report discusses the requirements to the beacon that can support optimal correction of the wavefront. Post-processing of the beacon-generated light field enables retrieval and detailed characterization of the turbulence-perturbed wavefront — data essential to control the adaptive optics module of a high-power laser system.
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Vladimir Markov, Joshua Isaacs, Phillip Sprangle, Anatoliy Khizhnyak, Michael Helle, and Joseph Penano "Characteristics of the USLP based beacon for laser beam control", Proc. SPIE 10770, Laser Communication and Propagation through the Atmosphere and Oceans VII, 107700A (2 October 2018); https://doi.org/10.1117/12.2320357
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KEYWORDS
Atmospheric propagation
Turbulence
Adaptive optics
Light wave propagation
Wavefronts
Laser beam propagation
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