Zhou Songqing, Huang Ke, Shen Yanlong, Yi Aiping, Qu Pubo. Design and experimental investigation of unstable resonator for discharge initiated repetitive-pulsed HF laser[J]. Infrared and Laser Engineering, 2019, 48(10): 1005002-1005002(6). doi: 10.3788/IRLA201948.1005002
Citation:
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Zhou Songqing, Huang Ke, Shen Yanlong, Yi Aiping, Qu Pubo. Design and experimental investigation of unstable resonator for discharge initiated repetitive-pulsed HF laser[J]. Infrared and Laser Engineering, 2019, 48(10): 1005002-1005002(6). doi: 10.3788/IRLA201948.1005002
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Design and experimental investigation of unstable resonator for discharge initiated repetitive-pulsed HF laser
- 1.
State Key Laboratory of Laser Interaction with Matter,Northwest Institute of Nuclear Technology,Xi'an 710024,China
- Received Date: 2019-06-11
- Rev Recd Date:
2019-07-21
- Publish Date:
2019-10-25
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Abstract
In order to realize the long distance transmission of discharge initiated repetitive-pulsed HF laser, and produce a high quality laser of large volume in the shorter resonant cavity, the structural design, simulation calculation and experimental study of the passive branch confocal unstable resonant cavity were carried out. The simulation results show that with the increase of the magnification M, the energy of far-field light focal spot was gradually increased with the increase of magnification, and the energy transferred to the light spot center. In addition, the light spot size and the divergence angle of far-field were gradually decreased as well. The experimental results show that with the increase of the magnification M, the variation of the far-field intensity distribution, the light spot size and the divergence angle were consistent with the simulation results. But the output laser energy actually increases first and then decreases. Considering the requirements of high beam quality and high energy, in the case of normal flow field, the far-field divergence angle of repetitive-pulsed HF laser was 2.37 times diffraction limit magnification when M was 3, and the laser energy was slightly lower than the stable resonant cavity(about 94.6% of stable resonant cavity), which satisfies the requirements of long distance transmission.
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References
[1]
|
Liu Zunyang, Ye Qing, Li Xiuhe, et al. Choice and detectability of See-To-Ground waveband of infrared warning satellite[J]. Infrared and Laser Engineering, 2018, 47(2):0204003. (in Chinese) |
[2]
|
Yi Aiping, Liu Jingru, Tang Ying, et al. Electrically initiated repetitive-pulsed non-chain HF laser[J]. Optics and Precision Engineering, 2011, 19(2):360-366. (in Chinese) |
[3]
|
Ye Weilin, Zhou Bo, Yu Hongzhi, et al. In-motion monitoring of atmospheric methane and ethane using a mid-infrared dual-gas simultaneous detection sensor[J]. Optics and Precision Engineering, 2018, 26(8):1938-1944.(in Chinese) |
[4]
|
Ouyang Aiguo, Tang Tianyi, Wang Haiyang, et al. Detection of key performance indicators of ethanol diesel by the infrared spectroscopy method[J]. Chinese Optics, 2017, 10(3):363-369. (in Chinese) |
[5]
|
Brunet H, Mabru M, Voignier F. High energy-high average power pulsed HF/DF chemical laser[C]//SPIE, 1995, 2502:388-392. |
[6]
|
Apollonov V V, Belevtsev A A, Firsov K N, et al. Advanced studies on powerful wide-aperture non-chain HF(DF) lasers with a self-sustained volume discharge to initiate chemical reaction[C]//SPIE, 2003, 5120:529-541. |
[7]
|
Tan Gaijuan, Xie Jijiang, Pan Qikun, et al. Design and experimental investigation on unstable resonator for non-chain pulsed DF laser[J]. Chinese Journal of Lasers, 2014, 41(1):0102004. (in Chinese) |
[8]
|
Ruan Peng, Pan Qikun, Xie Jijiang, et al. Numerical simulation and experiments on unstable resonator for non-chain DF laser[J]. Infrared and Laser Engineering, 2017, 46(2):0205004. (in Chinese) |
[9]
|
Zhang Xiao, Liu Wengguang. A fast calculation method for optical field in unstable laser resonators[J]. Chinese Journal of Computational Physics, 2012, 29(4):557-565. (in Chinese) |
[10]
|
Huang Ke, Huang Chao, Zhao Liu, et al. Effects of flow field uniformity on energy stability of discharge initiated repetitively pulsed HF laser[J]. Infrared and Laser Engineering, 2016, 45(1):0106007. (in Chinese) |
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