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使用自参考干涉波前传感器(SRIWFS)进行波前的绝对测量时,为了获得近似平面波前的参考波,针孔直径应该不大于无畸变光学系统艾里斑直径(dA)的一半,然而这必将导致光能利用率的严重下降.为了最大程度地提高光能利用率并改善干涉条纹的对比度,研究了SRIWFS应用于闭环校正中时所允许的最大针孔直径,这将在闭环开始阶段尤为重要.数值模拟和实验表明,直径不大于1.5dA的针孔可以获得满意的校正结果,校正后远场斯特列尔比高于80％;同时光能
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关键词:
- 自适应光学 /
- 自参考干涉波前传感器 /
- 针孔直径 /
- 闭环校正
When the self-referencing interferometer wavefront sensor (SRIWFS) is applied to the absolute measurement of wavefront phase, the pinhole diameter should be less than half the Airy-disk diameter (dA) produced by an unaberrated optic so as to obtain a good approximation to a reference plane wave. In this way, however, the intensity transmission is also greatly reduced. To increase the intensity transmission as much as possible and improve the fringe contrast especially in the beginning of closed-loop correction, the maximal pinhole diameter allowed in the closed-loop correction with using SRIWFS is studied. Computer simulation and experiment demonstrate that a pinhole with not greater than 1.5dA can obtain a satisfied correction result and the Strehl ratio after correction is greater than 80%. Additionally, for a plane wavefront the intensity transmission will be increased from 63% to 90% as the pinhole diameter increases from 0.5dA to 1.5dA.-
Keywords:
- adaptive optics /
- self-referencing interferometer wavefront sensor /
- pinhole diameter /
- closed-loop correction
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[2] Smartt R N, Steel W H 1975 Jpn. J. Appl. Phys. 14 351
[3] Ning Y, Yu H, Zhou H, Rao C H, Jiang W H 2009 Acta Phys. Sin. 58 4717 (in Chinese)[宁 禹、余 浩、周 虹、饶长辉、 姜文汉 2009 58 4717]
[4] Li C H, Xian H, Jiang W H, Rao C H 2007 Acta Phys. Sin. 56 4289 (in Chinese) [李超宏、鲜 浩、姜文汉、饶长辉 2007 56 4289]
[5] Fried D L 1998 J. Opt. Soc. Am. A 15 2759
[6] Feldman M, Mockler D J 1991 Proc. SPIE 1542 490
[7] Lin H 2007 M.S. Thesis (Beijing: Graduate University of the Chinese Academy of Sciences) (in Chinese) [林衡2007 硕士学位论文 (北京:中国科学院研究生院)]
[8] Bai F Z, Rao C H 2010 Acta Phys. Sin. 59 4056 (in Chinese)[白福忠、饶长辉 2010 59 4056]
[9] Bai F Z, Rao C H 2009 Opt. Express 17 16861
[10] Schmit J, Creath K 1995 Appl. Opt. 34 3610
[11] Noraras J, Paterson C 2007 Opt. Express 15 13745.
[12] Kwon O Y 1984 Opt. Lett. 9 59
[13] Mercer C R, Creath K 1994 Opt. Lett. 19 916
[14] Medecki H, Tejnil E, Goldberg K A, Bokor J 1996 Opt. Lett. 21 1526
[15] Corley M S, Rhoadarmer T A 2005 Proc. SPIE 5894 1
[16] Cai D M, Yao J, Jiang W H 2009 Acta Opt. Sin. 29 285 (in Chinese) [蔡冬梅、姚 军、姜文汉 2009 光学学报 29 285]
[17] Bai F Z, Rao C H 2010 Acta Opt. Sin. 30 1487 (in Chinese) [白福忠、饶长辉 2010 光学学报 30 1487]
[18] Cai D M, Ling N, Jiang W H 2008 Acta Phys. Sin. 57 897 (in Chinese) [蔡冬梅、凌 宁、姜文汉 2008 57 897]
[19] Ge A M, Sui Z, Xu K S 2003 Acta Phys. Sin. 52 2481 (in Chinese) [葛爱明、隋 展、徐克寿 2003 52 2481]
[20] Muller R A, Baffington A 1974 J. Opt. Am. 64 9
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[1] Rhoadarmer T A 2004 Proc. SPIE 5553 112
[2] Smartt R N, Steel W H 1975 Jpn. J. Appl. Phys. 14 351
[3] Ning Y, Yu H, Zhou H, Rao C H, Jiang W H 2009 Acta Phys. Sin. 58 4717 (in Chinese)[宁 禹、余 浩、周 虹、饶长辉、 姜文汉 2009 58 4717]
[4] Li C H, Xian H, Jiang W H, Rao C H 2007 Acta Phys. Sin. 56 4289 (in Chinese) [李超宏、鲜 浩、姜文汉、饶长辉 2007 56 4289]
[5] Fried D L 1998 J. Opt. Soc. Am. A 15 2759
[6] Feldman M, Mockler D J 1991 Proc. SPIE 1542 490
[7] Lin H 2007 M.S. Thesis (Beijing: Graduate University of the Chinese Academy of Sciences) (in Chinese) [林衡2007 硕士学位论文 (北京:中国科学院研究生院)]
[8] Bai F Z, Rao C H 2010 Acta Phys. Sin. 59 4056 (in Chinese)[白福忠、饶长辉 2010 59 4056]
[9] Bai F Z, Rao C H 2009 Opt. Express 17 16861
[10] Schmit J, Creath K 1995 Appl. Opt. 34 3610
[11] Noraras J, Paterson C 2007 Opt. Express 15 13745.
[12] Kwon O Y 1984 Opt. Lett. 9 59
[13] Mercer C R, Creath K 1994 Opt. Lett. 19 916
[14] Medecki H, Tejnil E, Goldberg K A, Bokor J 1996 Opt. Lett. 21 1526
[15] Corley M S, Rhoadarmer T A 2005 Proc. SPIE 5894 1
[16] Cai D M, Yao J, Jiang W H 2009 Acta Opt. Sin. 29 285 (in Chinese) [蔡冬梅、姚 军、姜文汉 2009 光学学报 29 285]
[17] Bai F Z, Rao C H 2010 Acta Opt. Sin. 30 1487 (in Chinese) [白福忠、饶长辉 2010 光学学报 30 1487]
[18] Cai D M, Ling N, Jiang W H 2008 Acta Phys. Sin. 57 897 (in Chinese) [蔡冬梅、凌 宁、姜文汉 2008 57 897]
[19] Ge A M, Sui Z, Xu K S 2003 Acta Phys. Sin. 52 2481 (in Chinese) [葛爱明、隋 展、徐克寿 2003 52 2481]
[20] Muller R A, Baffington A 1974 J. Opt. Am. 64 9
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