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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.
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Keywords:
- adaptive optics /
- self-referencing interferometer wavefront sensor /
- pinhole diameter /
- closed-loop correction
[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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[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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