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An adaptive wavefront control system using a high-resolution liquid crystal spatial light modulator

机译:使用高分辨率液晶空间光调制器的自适应波前控制系统

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We have developed a tabletop adaptive optics wavefront control system used to correct dynamic distortions. The system uses a Shack-Hartmann sensor constructed by using a lenslet array and a high-speed CMOS camera to measure distortion, a high-resolution liquid crystal spatial light modulator to correct distortion, and a personal computer to execute feedback control. A correction refresh rate of 50 cycles per second was achieved as the result of the high-speed vision system. The temporal characteristic measurement was based on the response to periodic signals of patterns, and the measured bandwidth was about 7Hz. We also describe the optical configuration and experimental results of a performance evaluation.
机译:我们已经开发出了用于校正动态失真的台式自适应光学波阵面控制系统。该系统使用通过使用小透镜阵列和高速CMOS相机测量失真的Shack-Hartmann传感器,用于校正失真的高分辨率液晶空间光调制器以及用于执行反馈控制的个人计算机。高速视觉系统的结果是每秒获得50个循环的校正刷新率。时间特性测量基于对模式的周期性信号的响应,并且测量的带宽约为7Hz。我们还描述了光学配置和性能评估的实验结果。

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