Current Optics and Photonics

Optical Society of Korea (한국광학회)
권호 표지
DOI QR코드

DOI QR Code

Pulsed-laser-diode Intermittently Pumped 2-㎛ Acousto-optic Q-switched Tm:LuAG Laser

  • Wen, Ya (Jilin Key Laboratory of Solid Laser Technology and Application, College of Science, Changchun University of Science and Technology) ;
  • Jiang, Yan (Sichuan Aerospace Fenghuo Servo Control Technology Corporation) ;
  • Zheng, Hao (Jilin Key Laboratory of Solid Laser Technology and Application, College of Science, Changchun University of Science and Technology) ;
  • Zhang, Hongliang (Jilin Key Laboratory of Solid Laser Technology and Application, College of Science, Changchun University of Science and Technology) ;
  • Wang, Chao (Jilin Key Laboratory of Solid Laser Technology and Application, College of Science, Changchun University of Science and Technology) ;
  • Wu, Chunting (Jilin Key Laboratory of Solid Laser Technology and Application, College of Science, Changchun University of Science and Technology) ;
  • Jin, Guangyong (Jilin Key Laboratory of Solid Laser Technology and Application, College of Science, Changchun University of Science and Technology)
  • Received : 2019.10.17
  • Accepted : 2020.04.10
  • Published : 2020.06.25
Download PDF
⟨ Previous Next ⟩

Abstract

The heat distribution in crystals in a 2-㎛ acousto-optic Q-switched Tm:LuAG laser pumped by pulsed-laser-diode (pulsed-LD) intermittent-pumping technology was analyzed using COMSOL software. The thermal lensing effect of the Tm:LuAG crystal can be mitigated by pulsed-LD intermittent-pumping techniques. An experimental setup using this kind of approach achieved maximum output energy of 8.31 mJ, minimum pulse width of 101.9 ns, and highest peak power of 81.55 kW, reached at a Q-switched repetition rate of 200 Hz. It offers significant improvement of performance of the output laser beam, compared to pulsed-LD double-ended pumping technology at the same repetition rate.

Keywords

References

  1. Q. L. Ma, N. Zong, S. Y. Xie, F. Yang, Y. D. Guo, J. L. Xu, Y. Bo, Q. J. Peng, D. F. Cui, and Z. Y. Xu, "Q-switched Tm:YAG laser intracavity-pumped by a 1064 nm laser," Chin. Phys. Lett. 26, 124211 (2009). https://doi.org/10.1088/0256-307X/26/12/124211
  2. Y.-W. Zou, Y.-D. Zhang, X. Zhong, and Z.-Y. Wei, "Efficient Tm:YAG ceramic laser at 2 ${\mu}m$," Chin. Phys. Lett. 27, 074213 (2010). https://doi.org/10.1088/0256-307X/27/7/074213
  3. S. Zhang, M. Wang, L. Xu, Y. Wang, Y. Tang, X. Cheng, W. Chen, J. Xu, B. Jiang, and Y. Pan, "Efficient Q-switched Tm:YAG ceramic slab laser," Opt. Express 19, 727-732 (2011). https://doi.org/10.1364/OE.19.000727
  4. H. Zhang, Y. Wen, L. Zhang, Z. Fan, J. Liu, and C. Wu, "Influences of pump spot radius and depth of focus on the thermal effect of Tm:YAP crystal," Curr. Opt. Photon. 3, 458-465 (2019). https://doi.org/10.3807/copp.2019.3.5.458
  5. C. T. Wu, Y. L. Ju, R. L. Zhou, X. M. Duan, and Y. Z. Wang, "Achieving single-longitudinal-mode output about Tm:YAG laser at room temperature," Laser Phys. 21, 372-375 (2011). https://doi.org/10.1134/S1054660X11030212
  6. Y. Zhang, C. Gao, M. Gao, Y. Zheng, L. Wang, and R. Wang, "Frequency stabilization of a single-frequency Q-switched Tm:YAG laser by using injection seeding technique," Appl. Opt 50, 4232-4236 (2011). https://doi.org/10.1364/AO.50.004232
  7. J. Park, S. Ryu, and D.-I. Yeom, "All-fiber Tm-Ho codoped laser operating at 1700 nm," Curr. Opt. Photon. 2, 356-360 (2018). https://doi.org/10.3807/COPP.2018.2.4.356
  8. I.-H. Bae, S. D. Lim, J.-K. Yoo, D.-H. Lee, and S. K. Kim, "Development of a mid-infrared CW optical parametric oscillator based on fan-out grating MgO:PPLN pumped at 1064 nm," Curr. Opt. Photon. 3, 33-39 (2019). https://doi.org/10.3807/COPP.2019.3.1.033
  9. N. P. Barnes, M. G. Jani, and R. L. Hutcheson, "Diode-pumped, room-temperature Tm:LuAG laser," Appl. Opt. 34, 4290-4294 (1995). https://doi.org/10.1364/AO.34.004290
  10. V. Sudesh and J. A. Piper, "Spectroscopy, modeling, and laser operation of thulium-doped crystals at 2.3 ${\mu}m$," IEEE J. Quantum Electron. 36, 879-884 (2000). https://doi.org/10.1109/3.848362
  11. F. Chen, C. T. Wu, Y. L. Ju, B. Q. Yao, and Y. Z. Wang, "Diode-pumped Q-switched Tm:LuAG ring laser operation at room temperature," Laser Phys. 22, 371-374 (2012). https://doi.org/10.1134/S1054660X12020053
  12. C. Wu, F. Chen, R. Wang, and Y. Ju, "Thermal lensing and laser performance of Tm:LuAG crystal at room temperature," Opt. Commun. 333, 115-119 (2014). https://doi.org/10.1016/j.optcom.2014.07.027
  13. T. Feng, K. Yang, S. Zhao, J. Zhao, W. Qiao, T. Li , L. Zheng, J. Xu, Q. Wang, X. Xu, L. Su, and Y. Wang, "Efficient CW dual-wavelength and passively Q-switched Tm:LuAG lasers," IEEE Photon. Technol. Lett. 27, 7-10 (2015). https://doi.org/10.1109/LPT.2014.2357800
  14. Y. Zhang, B. Yao, T. Dai, H. Shi, L. Han, Y. Shen, and Y. Ju, "Electro-optically cavity-dumped 3 ns Tm:LuAG laser," Appl. Opt. 55, 2848-2851 (2016). https://doi.org/10.1364/AO.55.002848
  15. Z. Zhou, X. Huang, X. Guan, J. Lan, B. Xu, H. Xu, Z. Cai, P. Liu, D. Yan, X. Xu, J. Zhang, M. Lei, and J. Xu, "Continuous-wave and passively Q-switched $Tm^{3+}$-doped LuAG ceramic lasers," Opt. Mater. Express 7, 3441-3447 (2017). https://doi.org/10.1364/OME.7.003441
  16. Q. Song, X. Xu, Z. Zhou, Z. Xu, B. Xu, D. Li, P. Liu, J. Xu, and K. Lebbou, "Laser operation in a Tm:LuAG crystal grown by the micro-pulling-down technique," IEEE Photonic Technol. Lett. 30, 1913-1916 (2018). https://doi.org/10.1109/LPT.2018.2872008
  17. C. Wu, Y. Jian, C. Wan, X. Chen, Y. Yu, G. Jin, "Pulse-diode-intermittent-pumped 2-${\mu}m$ acousto-optically Q-switched Tm:YAG laser," Infrared Phys. Technol. 96, 151-154. (2019). https://doi.org/10.1016/j.infrared.2018.11.012