Optimization of noncollinear AOTF design for laser beam shaping
Konstantin B. Yushkov, Alexander I. Chizhikov, O. Makarov, Vladimir Ya. Molchanov
Abstract
Optimization of a wide-angle paratellurite acousto-optic tunable filter (AOTF) is performed for applications in laser beam shaping systems. The AOTF configuration with annular transfer function is analyzed. It is demonstrated that the optimal AOTF design for single-frequency operation as a narrow-band spatial frequency filter is obtained at acoustic propagation angle of 5.6° relative to the [110] axis. The optimal design for maximization of AOTF resolution in multifrequency laser beam shaping operation mode is obtained at acoustic propagation angle of 13.8°.
Topics & Concepts
OpticsLaserMaterials scienceFilter (signal processing)Beam (structure)Spatial filterAcceptance angleSpatial frequencyPhysicsComputer scienceComputer visionOptical and Acousto-Optic TechnologiesPhotonic and Optical DevicesPhotorefractive and Nonlinear Optics