8.2 kW high beam quality quasi-continuous-wave face-pumped Nd:YAG slab amplifier
An 8 kW level quasi-continuous-wave (QCW) face-pumped 1064 nm slab laser with high beam quality was developed by a master oscillator power amplifier (MOPA) system. A single-mode fiber seed laser was amplified by two-stage single-pass Nd:YAG rod preamplifiers and four face-pumped Nd:YAG slab amplifie...
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| Veröffentlicht in: | Applied Optics 2015-06, Vol.54 (16), p.5011-5015 |
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| container_title | Applied Optics |
| container_volume | 54 |
| creator | Chen, Zhong-Zheng Xu, Yi-Ting Guo, Ya-Ding Wang, Bao-Shan Xu, Jian Xu, Jia-Lin Gao, Hong-Wei Yuan, Lei Yuan, Hong-Tao Lin, Yan-Yong Xiao, Yun-Sheng Bo, Yong Peng, Qin-Jun Lei, Wen-Qiang Cui, Da-Fu Xu, Zu-Yan |
| description | An 8 kW level quasi-continuous-wave (QCW) face-pumped 1064 nm slab laser with high beam quality was developed by a master oscillator power amplifier (MOPA) system. A single-mode fiber seed laser was amplified by two-stage single-pass Nd:YAG rod preamplifiers and four face-pumped Nd:YAG slab amplifiers. The slab amplifiers were well designed with uniform pumping and uniform cooling for well-distributed thermal and stress. A dynamically feedbacked optical aberration compensation device was employed to correct low-order optical aberration, and the residue high-order optical aberration was corrected by an adaptive optics system. The QCW MOPA delivered up to an average power of 8.2 kW with a pulse duration of 200 μs at a repetition rate of 400 Hz. The beam quality factor was measured to be β=3.5. |
| doi_str_mv | 10.1364/AO.54.005011 |
| format | Article |
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| title | 8.2 kW high beam quality quasi-continuous-wave face-pumped Nd:YAG slab amplifier |
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