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题名:
High-speed SPGD wavefront controller for an adaptive optics system without wavefront sensor
作者: Caixia Wang; Xinyang Li; Mei Li; Jongwei Ye; Bo Chen
出版日期: 2010
会议名称: Proceedings of the SPIE - The International Society for Optical Engineering
会议日期: 2010
通讯作者: Caixia Wang
中文摘要: A non-conventional adaptive optics system based on direct system performance metric optimization is illustrated. The system does not require wave-front sensor which is difficult to work under the poor condition such as beam cleanup for the anomalous light beam. The system comprises a high speed wavefront controller based on Stochastic Parallel Gradient Descent (SPGD) Algorithm, a deformable mirror, a tip/tilt mirror and a far-field system performance metric sensor. The architecture of the wave-front controller is based on a combination of Field Programmable Gate Array (FPGA) and floating-point Digital Signal Processor (DSP). The Zernike coefficient information is applied to improve the iteration speed. The experimental results show that the beam cleanup system based on SPGD keep a high iteration speed. The controller can compensate the wavefront aberration and tilt excursion effectively.
英文摘要: A non-conventional adaptive optics system based on direct system performance metric optimization is illustrated. The system does not require wave-front sensor which is difficult to work under the poor condition such as beam cleanup for the anomalous light beam. The system comprises a high speed wavefront controller based on Stochastic Parallel Gradient Descent (SPGD) Algorithm, a deformable mirror, a tip/tilt mirror and a far-field system performance metric sensor. The architecture of the wave-front controller is based on a combination of Field Programmable Gate Array (FPGA) and floating-point Digital Signal Processor (DSP). The Zernike coefficient information is applied to improve the iteration speed. The experimental results show that the beam cleanup system based on SPGD keep a high iteration speed. The controller can compensate the wavefront aberration and tilt excursion effectively.
收录类别: Ei ; ISTP
语种: 英语
卷号: 7658
文章类型: 会议论文
页码: 76585T (6 pp.)
内容类型: 会议论文
URI标识: http://ir.ioe.ac.cn/handle/181551/7746
Appears in Collections:自适应光学技术研究室(八室)_会议论文

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作者单位: 中国科学院光电技术研究所

Recommended Citation:
Caixia Wang,Xinyang Li,Mei Li,et al. High-speed SPGD wavefront controller for an adaptive optics system without wavefront sensor[C]. 见:Proceedings of the SPIE - The International Society for Optical Engineering. 2010.
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