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	High-speed SPGD wavefront controller for an adaptive optics system without wavefront sensor
	Caixia Wang; Xinyang Li; Mei Li; Jongwei Ye; Bo Chen
	2010
会议名称	Proceedings of the SPIE - The International Society for Optical Engineering
会议日期	2010
卷号	7658
页码	76585T (6 pp.)
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
内容类型	会议论文
源URL	[http://ir.ioe.ac.cn/handle/181551/7746]
专题	光电技术研究所_自适应光学技术研究室（八室）
作者单位	中国科学院光电技术研究所
推荐引用方式 GB/T 7714	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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