|
|
Optoelectronics 2020
准三能级Tm:YAP自调Q固体激光器理论探讨
|
Abstract:
在考虑基态重吸收的前提下，建立了准三能级Tm:YAP自调Q激光器的速率方程理论模型。通过数值模拟，确定了Tm:YAP的晶体掺杂浓度为5.0at.%，长度为5 mm，输出透过率为6%的耦合镜，为实现稳定的自调Q脉冲输出可行性提供了理论依据。讨论了泵浦功率在7~18 W时，脉冲宽度、重复频率、峰值功率、脉冲能量等随泵浦功率的变化关系。在泵浦功率为18 W时，脉冲宽度为5.1 μs，重复频率为22.7 kHz，峰值功率为12.1 W，脉冲能量为61.9 μJ。
Under considering the reabsorption of ground state, the quasi-three-level rate equation theoretical model of Tm:YAP self-Q-switching solid-state laser was established, and the crystal doping concentration of 5.0 at.%, the length of 5 mm and the coupling mirror with transmission rate of 6% was determined by numerical simulation, which provided a theoretical basis for the realization of stable self-Q-switching pulse output. The pulse width, repetition frequency, peak power and pulse energy as functions of pump power at 7 - 18 W were discussed. The pulse width is 5.1 μs, the repetition frequency is 22.7 kHz, the peak power is 12.1 W and the pulse energy is 61.9 μJ.
| [1] | 李玉峰. 二极管泵浦单掺Tm3+固体激光器研究[D]: [博士学位论文]. 哈尔滨: 哈尔滨工业大学, 2008. |
| [2] | 公爽. Yb:GYSO固体调Q激光器研究[D]: [硕士学位论文]. 北京: 北京工业大学, 2018. |
| [3] | Cai, W., Liu, J., Li, C., Zhu, H., Ge, P., Zheng, L., Su, L. and Xu, J. (2015) Compact Self-Q-Switched Laser near 2 μm. Optics Communications, 334, 287-289. https://doi.org/10.1016/j.optcom.2014.08.049 |
| [4] | Zhang, G., Fu, X., Shen, Y. and Gong, M. (2018) High Power Self-Q-Switching in Nd:LuAG Lase. IEEE Photonics Journal, 6, 1505009. https://doi.org/10.1109/JPHOT.2018.2883994 |
| [5] | Li, S., Zhou, S., Wang, P. and Chen, Y.C. (1993) Self-Q-Switched Diode-End-Pumped Cr, Nd:YAG Laser with Polarized Output. Optics Letters, 18, 203-204. http://doi.org/10.1364/OL.18.000203 |
| [6] | Su, L., Xu, J., Xue, Y., Wang, C., Chai, L., Xu, X. and Zhao, G. (2005) Low-Threshold Diode-Pumped Yb3+, Na+:CaF2 Self-Q-Switched Laser. Optics Express, 13, 5635-5640. http://doi.org/10.1364/OPEX.13.005635 |
| [7] | Gupta, P.K., Singh, A., Sharma, S.K., Mukhopadhyay, P.K., Bindra, K.S. and Oak, S.M. (2012) Note: Self Q-Switched Nd:YVO4 Laser at 914 nm. The Review of Scientific Instruments, 83, 046110. http://doi.org/10.1063/1.4705996 |
| [8] | Xu, J., Ji, Y., Wang, Y., Zhen, Y., Wang, H. and Tu, C. (2014) Self-Q-Switched, Orthogonally Polarized, Dual-Wavelength Laser Using Long-Lifetime Yb3+ Crystal as Both Gain Medium and Saturable Absorber. Optics Express, 22, 6577-6585.
http://doi.org/10.1364/OE.22.006577 |
| [9] | Song, Q., Wang, G., Zhang, B., Zhang, Q., Wang, W., Wang, M., Sun, G., Bo, Y. and Peng, Q. (2015) Dual-Wavelength Self-Q-Switched Nd:GYSGG Laser. Journal of Modern Optics, 62, 1655-1659.
http://doi.org/10.1080/09500340.2015.1061063 |
| [10] | Zhang, B., Li, L., He, C., Tian, F., Yang, X., Cui, J., Zhang, J. and Sun, W. (2018). Compact Self-Q-Switched Tm:YLF Laser at 1.91 μm. Optics Laser Technology, 100, 103-108. https://doi.org/10.1016/j.optlastec.2017.10.001 |
| [11] | 丁艳. 二极管泵浦Tm:YAP/YVO4拉曼激光器输出特性研究[D]: [硕士学位论文]. 哈尔滨: 哈尔滨工程大学, 2018. |
| [12] | Li, Q., Feng, B., Zhang, Z. and Zhang, T. (2011) Direct Numerical Simulation of Quasi-Three-Level Passive Q-Switched Laser. Optics Communications, 284, 3391-3398. https://doi.org/10.1016/j.optcom.2011.03.061 |
