Acousto-Optic Control of the Energy Profile of Laser Radiation

Journal Article · Sun Jan 14 23:00:00 EST 2018 · Technical Physics

DOI:https://doi.org/10.1134/S1063784218010048· OSTI ID:22783941

Filatov, A. L. ^[1]

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1. Russian Academy of Sciences, Kotel’nikov Institute of Radio Engineering and Electronics (Fryazino Branch) (Russian Federation)

An acousto-optic shaper is developed for transformation of the Gaussian beam profile into almost rectangular profile. As distinct from lens devices, an acousto-optic device allows modification of the shape of the output beam in a fixed optical configuration using changes in radio control with relatively short response times of about 10 μs. The method is based on multibeam high-efficiency Bragg diffraction when the diffraction orders are overlapped with respect to angle. It is shown that the beam profile can be transformed into rectangular and more complicated profiles with an efficiency of no less than 80%. The experiments are performed using the TeO{sub 2} crystal.

• OSTI ID: 22783941
• Journal Information: Technical Physics, Journal Name: Technical Physics Journal Issue: 1 Vol. 63; ISSN 1063-7842
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACOUSTICS
BEAM PROFILES
BRAGG REFLECTION
CONTROL
CRYSTALS
DIFFRACTION
EFFICIENCY
LASER RADIATION
TELLURIUM OXIDES