High signal-to-noise ratio sensing with Shack-Hartmann wavefront sensor based on auto gain control of electron multiplying CCD

doi:10.1088/1674-1056/25/9/090702

中国物理B ›› 2016, Vol. 25 ›› Issue (9): 90702-090702.doi: 10.1088/1674-1056/25/9/090702

• SPECIAL TOPIC—Physical research in liquid crystal • 上一篇下一篇

High signal-to-noise ratio sensing with Shack-Hartmann wavefront sensor based on auto gain control of electron multiplying CCD

Zhao-Yi Zhu(朱召义), Da-Yu Li(李大禹), Li-Fa Hu(胡立发), Quan-Quan Mu(穆全全), Cheng-Liang Yang(杨程亮), Zhao-Liang Cao(曹召良), Li Xuan(宣丽)

1. State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China

收稿日期:2016-05-25 出版日期:2016-09-05 发布日期:2016-09-05
通讯作者: Li Xuan E-mail:xuanli@ciomp.ac.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11174274, 61205021, and 61405194) and the State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences.

High signal-to-noise ratio sensing with Shack-Hartmann wavefront sensor based on auto gain control of electron multiplying CCD

Zhao-Yi Zhu(朱召义)^1,2, Da-Yu Li(李大禹)¹, Li-Fa Hu(胡立发)¹, Quan-Quan Mu(穆全全)¹, Cheng-Liang Yang(杨程亮)¹, Zhao-Liang Cao(曹召良)¹, Li Xuan(宣丽)¹

1. State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China

Received:2016-05-25 Online:2016-09-05 Published:2016-09-05
Contact: Li Xuan E-mail:xuanli@ciomp.ac.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11174274, 61205021, and 61405194) and the State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences.

摘要/Abstract

摘要： High signal-to-noise ratio can be achieved with the electron multiplying charge-coupled-device (EMCCD) applied in the Shack-Hartmann wavefront sensor (S-H WFS) in adaptive optics (AO). However, when the brightness of the target changes in a large scale, the fixed electron multiplying (EM) gain will not be suited to the sensing limitation. Therefore an auto-gain-control method based on the brightness of light-spots array in S-H WFS is proposed in this paper. The control value is the average of the maximum signals of every light spot in an array, which has been demonstrated to be kept stable even under the influence of some noise and turbulence, and sensitive enough to the change of target brightness. A goal value is needed in the control process and it is predetermined based on the characters of EMCCD. Simulations and experiments have demonstrated that this auto-gain-control method is valid and robust, the sensing SNR reaches the maximum for the corresponding signal level, and especially is greatly improved for those dim targets from 6 to 4 magnitude in the visual band.

关键词: adaptive optics, Shack-Hartmann wavefront sensor, electron multiplying charge-coupled-device (EMCCD), auto-gain-control method

Abstract: High signal-to-noise ratio can be achieved with the electron multiplying charge-coupled-device (EMCCD) applied in the Shack-Hartmann wavefront sensor (S-H WFS) in adaptive optics (AO). However, when the brightness of the target changes in a large scale, the fixed electron multiplying (EM) gain will not be suited to the sensing limitation. Therefore an auto-gain-control method based on the brightness of light-spots array in S-H WFS is proposed in this paper. The control value is the average of the maximum signals of every light spot in an array, which has been demonstrated to be kept stable even under the influence of some noise and turbulence, and sensitive enough to the change of target brightness. A goal value is needed in the control process and it is predetermined based on the characters of EMCCD. Simulations and experiments have demonstrated that this auto-gain-control method is valid and robust, the sensing SNR reaches the maximum for the corresponding signal level, and especially is greatly improved for those dim targets from 6 to 4 magnitude in the visual band.

Key words: adaptive optics, Shack-Hartmann wavefront sensor, electron multiplying charge-coupled-device (EMCCD), auto-gain-control method

中图分类号: (Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing)

07.07.Df

95.75.Qr (Adaptive and segmented optics) 95.55.Cs (Ground-based ultraviolet, optical and infrared telescopes)

朱召义, 李大禹, 胡立发, 穆全全, 杨程亮, 曹召良, 宣丽. High signal-to-noise ratio sensing with Shack-Hartmann wavefront sensor based on auto gain control of electron multiplying CCD[J]. 中国物理B, 2016, 25(9): 90702-090702.

Zhao-Yi Zhu(朱召义), Da-Yu Li(李大禹), Li-Fa Hu(胡立发), Quan-Quan Mu(穆全全), Cheng-Liang Yang(杨程亮), Zhao-Liang Cao(曹召良), Li Xuan(宣丽). High signal-to-noise ratio sensing with Shack-Hartmann wavefront sensor based on auto gain control of electron multiplying CCD[J]. Chin. Phys. B, 2016, 25(9): 90702-090702.

参考文献 21

[1]	Martin J B 2014 Light: Science & Applications 3 1
[2]	Chen H, Xuan L, Hu L F, Cao Z L and Mu Q Q 2010 Chinese Journal of Liquid Crystals and Displays 25 379
[3]	Xuan L, Li D Y and Liu Y G 2015 Chinese Journal of Liquid Crystals and Displays 30 1
[4]	Jiang Z, Gong S and Dai Y 2005 Optics & Laser Technology 38 614
[5]	Primot J 2003 Opt. Comm. 222 81
[6]	Li J, Gong Y, Chen H F and Hu X R 2015 Opt. Comm. 336 127
[7]	Lane R G and Tallon M 1992 Appl. Opt. 31 6902
[8]	HuangS Y, Ning Y, Xi F J and Jiang Z F 2013 Opt. Comm. 288 7
[9]	Nicolle M, Fusco T, Rousset G and Michau V 2004 Opt. Lett. 29 2743
[10]	Denvir D J and Conroy E 2002 Proc. SPIE 4877 55
[11]	Downing M, Finger G, Baade D, Hubin N, Iwert O and Kolb J 2008 Proc. SPIE 7015 70151R
[12]	Feautrier P, Gach J L, Balard P, Guillaume C, Downing M, Stadler E and Magnard Y 2008 Proc. SPIE 7021 70210C
[13]	Feautrier P, Gach J L, Balard P, Guillaume C, Downing M, Hubin N, Stadler E and Magnard Y 2010 Proc. SPIE 7736 77360Z
[14]	Feautrier P, Gach J L, Balard P, Guillaume C, Downing M, Hubin N, Stadler E and Magnard Y 2011 Publications of the Astronomical Society of the Pacific 123 263
[15]	Foppiani I, Baffa C, Biliotti V, Bregoli G, Cosentino G, Giani E, Esposito S and Marano B 2003 Proc. SPIE 4839 312
[16]	Qian Y, Zhang W, Liu J, Chen Q and Gu G 2014 Proc. SPIE 9273 92732J
[17]	Fowler K R 2004 Proc. IEEE Transactions on Instrumentation and Measurement 53 1057
[18]	Dayton D, Pierson B and Spielbusch B 1992 Opt. Lett. 17 1737
[19]	SamPat N, Venkataraman S, Yeh T and Kremens R 1999 Proc. SPIE 3650 100
[20]	Denvir D J and Conroy E 2003 Proc. SPIE 4796 164
[21]	Mantravadi S V, Rhoadarmer T A and Glas R S 2004 Proc. SPIE 5553 290

High signal-to-noise ratio sensing with Shack-Hartmann wavefront sensor based on auto gain control of electron multiplying CCD

High signal-to-noise ratio sensing with Shack-Hartmann wavefront sensor based on auto gain control of electron multiplying CCD

RichHTML

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献 21

相关文章 12

Metrics

本文评价

推荐阅读 0

[1]	程涛, 刘文劲, 庞博清, 杨平, 许冰. A slope-based decoupling algorithm to simultaneously control dual deformable mirrors in a woofer-tweeter adaptive optics system[J]. 中国物理B, 2018, 27(7): 70704-070704.
[2]	李斌, 于文豪, 陈莫, 唐金龙, 鲜浩. Co-focus experiment of segmented mirror[J]. 中国物理B, 2017, 26(6): 60706-060706.
[3]	尤俊成, 官春林, 周虹. Influence of low temperature on the surface deformation of deformable mirrors[J]. 中国物理B, 2017, 26(5): 54215-054215.
[4]	何斌, 胡立发, 李大禹, 徐焕宇, 张杏云, 王少鑫, 王玉坤, 杨程亮, 曹召良, 穆全全, 鲁兴海, 宣丽. A high precision phase reconstruction algorithm for multi-laser guide stars adaptive optics[J]. 中国物理B, 2016, 25(9): 94214-094214.
[5]	宣丽, 何斌, 胡立发, 李大禹, 徐焕宇, 张杏云, 王少鑫, 王玉坤, 杨程亮, 曹召良, 穆全全, 鲁兴海. Configuration optimization of laser guide stars and wavefront correctors for multi-conjugation adaptive optics[J]. 中国物理B, 2016, 25(9): 94216-094216.
[6]	杨乐宝, 胡立发, 李大禹, 曹召良, 穆全全, 马骥, 宣丽. Determining the imaging plane of a retinal capillary layer in adaptive optical imaging[J]. 中国物理B, 2016, 25(9): 94219-094219.
[7]	程生毅, 刘文劲, 陈善球, 董理治, 杨平, 许冰. Comparison between iterative wavefront control algorithm and direct gradient wavefront control algorithm for adaptive optics system[J]. 中国物理B, 2015, 24(8): 84214-084214.
[8]	刘瑞雪, 郑贤良, 李大禹, 夏明亮, 胡立发, 曹召良, 穆全全, 宣丽. Retinal axial focusing and multi-layer imaging with a liquid crystal adaptive optics camera[J]. , 2014, 23(9): 94211-094211.
[9]	罗文, 耿超, 武云云, 谭毅, 罗奇, 刘红梅, 李新阳. Experimental demonstration of single-mode fiber coupling using adaptive fiber coupler[J]. Chin. Phys. B, 2014, 23(1): 14207-014207.
[10]	於亮红, 梁晓燕, 任志君, 王利, 许毅, 陆效明, 于国浩. Wavefront correction of Ti:sapphire terawatt laser with varying precision of phase conjugation between deformable mirror and wavefront sensor[J]. 中国物理B, 2012, 21(1): 14201-014201.
[11]	刘超, 穆全全, 胡立发, 曹召良, 宣丽. High precision Zernike modal gray map reconstruction for liquid crystal corrector[J]. 中国物理B, 2010, 19(6): 64214-064214.
[12]	宁禹, 周虹, 余浩, 饶长辉, 姜文汉. Thermal stability test and analysis of a 20-actuator bimorph deformable mirror[J]. 中国物理B, 2009, 18(3): 1089-1095.