优化像散焦传感器的性能及其使用计算机生成全息图的实现
Optimizing the performance of an Astigmatic Defocus Sensor and its implementation using Computer Generated Hologram
摘要：
像散散传感器是一种非常简单和容易的技术，用于测量光束中存在的散焦量（偏离焦平面）。该方法使用柱面透镜来聚焦光束，并且使用焦平面处的强度的测量来找出光束中存在的散焦量。本文对基于傅立叶光学的像散传感器进行了理论分析。仿真结果验证了理论分析的正确性。提出了两种优化光学散焦传感器性能的方法。最后给出了利用计算全息图实现像散散传感器的过程。
英文摘要：
Astigmatic Defocus Sensor is a very simple and easy technique for measuring the amount of defocus (deviation from the focal plane) present in an optical beam. The approach uses a cylindrical lens to focus the beam and the measure of the intensity at the focal plane is used to find out the amount of defocus present in the beam. In this paper, we provide a theoretical discussion, on the Astigmatic Defocus Sensor, based on Fourier optics. The theoretical discussion is validated through simulation results. Two ways to optimize the performance of the astigmatic defocus sensor were also established. Further, the process of implementing the Astigmatic Defocus Sensor using computer-generated hologram is presented.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
