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Your search keyword '"Ren, Zhi-Jun"' showing total 8 results
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8 results on '"Ren, Zhi-Jun"'

6. Wavefront Correction of Pettawat Laser System by a Deformable Mirror with 50 mm Active Aperture

Author

Liu Mei-Biao, Lu Xiaoming, Ren Zhi-Jun, Xia Chang-Quan, XU Zhi-Zhan, Li Ru-Xin, and Liang Xiao-Yan

Subjects
Wavefront, Physics, business.industry, Aperture, Astrophysics::Instrumentation and Methods for Astrophysics, Physics::Optics, General Physics and Astronomy, Laser, Deformable mirror, law.invention, Optics, law, Sapphire, Focal Spot Size, Point (geometry), business, Adaptive optics
Abstract

We firstly propose and demonstrate a new economical approach that can correct the wavefront of the petwatt Ti:sapphire laser system with a beam size of 150mm. By using a deformable mirror with 50mm active aperture in the end of the laser, the focal spot size is reduced effectively. The experimental results show that the new approach is simple, less-expensive and valid from a technical and economical point. This technique could be applied to correct the wavefront of a large optical beam with a smaller aperture deformable mirror.

Published
2009

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

Author

Yu Liang-Hong, Liang Xiao-Yan, Ren Zhi-Jun, Wang Li, Xu Yi, Lu Xiao-Ming, and Yu Guo-Hao

Subjects
SAPPHIRES, OPTICAL phase conjugation, FOCUSING of deformable mirrors, ADAPTIVE optics, LASER beams, NONLINEAR optics
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 phaseconjugation 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. [ABSTRACT FROM AUTHOR]

Published
2012
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8. Wavefront correction of Ti : sapphire terawatt laser with varying precision of phase conjugation between deformable mirror and wavefront sensor*.

Author

Yu Liang-Hong, Liang Xiao-Yan, Ren Zhi-Jun, Wang Li, Xu Yi, Lu Xiao-Ming, and Yu Guo-Hao

Subjects
*SAPPHIRES, *OPTICAL phase conjugation, *FOCUSING of deformable mirrors, *ADAPTIVE optics, *LASER beams, *NONLINEAR optics
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 phaseconjugation 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. [ABSTRACT FROM AUTHOR]

Published
2012
Full Text
View/download PDF

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