Adaptive aberration correction of a 5 J/6.6 ns/200 Hz solid-state Nd:YAG laser
| Autor: | Guomao Tang, Ping Yang, Shanqiu Chen, Lizhi Dong, Zhijun Kang, Wenjin Liu, Xin Yu, Jisi Qiu, Shuai Wang, Zhongwei Fan, Boheng Lai, Bing Xu, Yong Liu, Hao Liu, Liu Yueliang |
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| Rok vydání: | 2017 |
| Předmět: |
Diffraction
Physics Wavefront business.industry 02 engineering and technology Wavefront sensor Laser 01 natural sciences Atomic and Molecular Physics and Optics Deformable mirror law.invention 010309 optics 020210 optoelectronics & photonics Optics law Nd:YAG laser 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Laser beam quality business Adaptive optics |
| Zdroj: | Optics letters. 42(14) |
| ISSN: | 1539-4794 |
| Popis: | In this Letter, we present an adaptive aberration correction system to simultaneously compensate for aberrations and reshaping the beams. A low-order aberration corrector is adapted. In this corrector, four lenses are mounted on a motorized rail, whose positions can be obtained using a ray tracing method based on the beam parameters detected by a wavefront sensor. After automatic correction, the PV value of the wavefront is reduced from 26.47 to 1.91 μm, and the beam quality β is improved from 18.42 to 2.86 times that of the diffraction limit. After further correction with a deformable mirror, the PV value of the wavefront is less than 0.45 μm, and the beam quality is 1.64 times that of the diffraction limit. To the best of our knowledge, this is the highest performance from such a high-power, high-pulse repetition rate Nd:YAG solid-state laser ever built. |
| Databáze: | OpenAIRE |
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