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

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 s...

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Published inChinese physics B Vol. 21; no. 1; pp. 192 - 198
Main Author 於亮红 梁晓燕 任志君 王利 许毅 陆效明 于国浩
Format Journal Article
LanguageEnglish
Published 2012
Subjects
Conjugation
Deformable mirrors
Laser beams
Lasers
Modulation
Phase conjugation
Sensors
Spots
Wave fronts
共轭精度
变形镜
太瓦激光
掺钛蓝宝石
波前传感器
波前校正
激光实验
相位共轭
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Summary: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.
Bibliography:adaptive optics, wave front correction, phase conjugation, deformable mirror
Yu Liang-Hong, Liang Xiao-Yan, Ren Zhi-Jun, Wang Li, Xu Yi, Lu Xiao-Ming, and Yu Guo-Hao（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
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.
11-5639/O4
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/21/1/014201