Rapid and highly integrated FPGA-based Shack-Hartmann wavefront sensor for adaptive optics system

Yi Pin Chen, Chia Yuan Chang, Shean Jen Chen

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

In this study, a field programmable gate array (FPGA)-based Shack-Hartmann wavefront sensor (SHWS) programmed on LabVIEW can be highly integrated into customized applications such as adaptive optics system (AOS) for performing real-time wavefront measurement. Further, a Camera Link frame grabber embedded with FPGA is adopted to enhance the sensor speed reacting to variation considering its advantage of the highest data transmission bandwidth. Instead of waiting for a frame image to be captured by the FPGA, the Shack-Hartmann algorithm are implemented in parallel processing blocks design and let the image data transmission synchronize with the wavefront reconstruction. On the other hand, we design a mechanism to control the deformable mirror in the same FPGA and verify the Shack-Hartmann sensor speed by controlling the frequency of the deformable mirror dynamic surface deformation. Currently, this FPGAbead SHWS design can achieve a 266 Hz cyclic speed limited by the camera frame rate as well as leaves 40% logic slices for additionally flexible design.

原文English
主出版物標題Adaptive Optics and Wavefront Control for Biological Systems IV
編輯Joel Kubby, Sylvain Gigan, Thomas G. Bifano
發行者SPIE
ISBN(電子)9781510614895
DOIs
出版狀態Published - 2018
事件Adaptive Optics and Wavefront Control for Biological Systems IV 2018 - San Francisco, United States
持續時間: 2018 1月 272018 1月 29

出版系列

名字Progress in Biomedical Optics and Imaging - Proceedings of SPIE
10502
ISSN(列印)1605-7422

Conference

ConferenceAdaptive Optics and Wavefront Control for Biological Systems IV 2018
國家/地區United States
城市San Francisco
期間18-01-2718-01-29

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 生物材料
  • 原子與分子物理與光學
  • 放射學、核子醫學和影像學

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