Presentation
20 September 2020 Control of laser beam intensity distribution, OAM, and coherence length based on fiber array coherent combining
Author Affiliations +
Abstract
We study how to control the orbital angular momentum, the intensity distribution, and the coherence length of a laser beam based on fiber array coherent combining. The features of the formation of nonzero orbital angular momentum of the beams when the controls the piston phase shift of the fiber array were theoretically and experimentally studied. A new method for controlling the distribution of the intensity of a light field synthesized on the basis of fiber array coherent combining were proposed. The possibilities of controlling the degree of spatial coherence of the synthesized laser beam were studied theoretically and experimentally.
Conference Presentation
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Vadim V. Dudorov, Valerii P. Aksenov, Valeriy V. Kolosov, and Mikhail E. Levitsky "Control of laser beam intensity distribution, OAM, and coherence length based on fiber array coherent combining", Proc. SPIE 11539, Technologies for Optical Countermeasures XVII; and High-Power Lasers: Technology and Systems, Platforms, Effects IV, 115390E (20 September 2020); https://doi.org/10.1117/12.2574257
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KEYWORDS
Beam controllers

Atmospheric propagation

Laser beam propagation

Computer programming

Phase shifts

Spatial coherence

Turbulence

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