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17 March 2023 Comparison of wavefront sensorless optimization system for high power lasers
Tommaso Furieri, Stefano Bonora, Ondra Denk, Jan Pilar
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Proceedings Volume PC12407, Laser Resonators, Microresonators, and Beam Control XXV; PC124070F (2023) https://doi.org/10.1117/12.2649850
Event: SPIE LASE, 2023, San Francisco, California, United States
Abstract
Laser beam distribution system (LBDS) is an important component at any high-power laser facility. Being a system of mirrors, lenses, and windows, the LBDS can significantly contribute to the laser beam quality degradation at target location. Phase correcting methods are among the few instruments allowing efficient control over the laser spot quality at the application site. We present a simpler solution utilizing only a PSF camera at every site. The PSF optimization is a sensorless modal correction algorithm, where each Legendre polynomial is scanned by the deformable mirror to find the best shape that maximize the PSF sharpness metric.
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Tommaso Furieri, Stefano Bonora, Ondra Denk, and Jan Pilar "Comparison of wavefront sensorless optimization system for high power lasers", Proc. SPIE PC12407, Laser Resonators, Microresonators, and Beam Control XXV, PC124070F (17 March 2023); https://doi.org/10.1117/12.2649850
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KEYWORDS
Wavefronts
High power lasers
Sensors
Point spread functions
Beam controllers
Beam shaping
Cameras
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