Yushkov Konstantin B, Chizhikov Alexander I, Makarov Oleg Yu, Molchanov Vladimir Ya
Appl Opt. 2020 Oct 1;59(28):8575-8581. doi: 10.1364/AO.398626.
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°.
针对激光束整形系统中的应用，对广角偏亚碲酸盐声光可调滤波器（AOTF）进行了优化。分析了具有环形传递函数的AOTF配置。结果表明，作为窄带空间频率滤波器的单频操作的最佳AOTF设计是在相对于[110]轴的5.6°声传播角下获得的。在13.8°的声传播角下获得了多频激光束整形操作模式下AOTF分辨率最大化的最佳设计。
