Wavefront correction of Ti:sapphire terawatt laser with varying precision of phase conjugation between deformable mirror and wavefront sensor

doi:10.1088/1674-1056/21/1/014201

中国物理B ›› 2012, Vol. 21 ›› Issue (1): 14201-014201.doi: 10.1088/1674-1056/21/1/014201

Wavefront correction of Ti:sapphire terawatt laser with varying precision of phase conjugation between deformable mirror and wavefront sensor

王利¹, 于国浩¹, 於亮红², 梁晓燕², 任志君², 许毅², 陆效明²

(1)Joint Laboratory of High Power Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China; (2)State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

收稿日期:2011-01-18 修回日期:2011-06-06 出版日期:2012-01-15 发布日期:2012-01-20
基金资助:
Project supported by the National Basic Research Program of China (Grant No. 2011CB808101) and the National Natural Science Foundation of China (Grant No. 60921004).

Wavefront correction of Ti:sapphire terawatt laser with varying precision of phase conjugation between deformable mirror and wavefront sensor

Yu Liang-Hong(於亮红)^a), Liang Xiao-Yan(梁晓燕)^a)†, Ren Zhi-Jun(任志君)^a), Wang Li(王利)^b), Xu Yi(许毅)^a), Lu Xiao-Ming(陆效明)^a), and Yu Guo-Hao(于国浩)^b)

^a State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China; ^b Joint Laboratory of High Power Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

Received:2011-01-18 Revised:2011-06-06 Online:2012-01-15 Published:2012-01-20
Supported by:
Project supported by the National Basic Research Program of China (Grant No. 2011CB808101) and the National Natural Science Foundation of China (Grant No. 60921004).

摘要/Abstract

摘要： The phase conjugation between the deformable mirror and the wavefront sensor in the aberration correction of a terawatt Ti:sapphire laser is studied experimentally and theoretically in this paper. At varying values of phase-conjugation precision, we focus the corresponding beams into spots of the same size of 5.1 μm×5.3 μm with a f/4 parabola in the 32 TW/36 fs Ti:sapphire laser system. The results show that the precision of conjugation can induce an intensity modulation but does not significantly affect the wavefront correction.

关键词: adaptive optics, wave front correction, phase conjugation, deformable mirror

Abstract: The phase conjugation between the deformable mirror and the wavefront sensor in the aberration correction of a terawatt Ti:sapphire laser is studied experimentally and theoretically in this paper. At varying values of phase-conjugation precision, we focus the corresponding beams into spots of the same size of 5.1 μm×5.3 μm with a f/4 parabola in the 32 TW/36 fs Ti:sapphire laser system. The results show that the precision of conjugation can induce an intensity modulation but does not significantly affect the wavefront correction.

Key words: adaptive optics, wave front correction, phase conjugation, deformable mirror

中图分类号: (Wave fronts and ray tracing)

42.15.Dp

42.60.-v (Laser optical systems: design and operation) 42.60.Jf (Beam characteristics: profile, intensity, and power; spatial pattern formation)

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.

Yu Liang-Hong(於亮红), Liang Xiao-Yan(梁晓燕), Ren Zhi-Jun(任志君), Wang Li(王利), Xu Yi(许毅), Lu Xiao-Ming(陆效明), and Yu Guo-Hao(于国浩) . Wavefront correction of Ti:sapphire terawatt laser with varying precision of phase conjugation between deformable mirror and wavefront sensor[J]. Chin. Phys. B, 2012, 21(1): 14201-014201.

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Wavefront correction of Ti:sapphire terawatt laser with varying precision of phase conjugation between deformable mirror and wavefront sensor

Wavefront correction of Ti:sapphire terawatt laser with varying precision of phase conjugation between deformable mirror and wavefront sensor

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