Abstract

The thermal effect and the light output of a laser crystal under different pumping depths were reported., Based on the thermal model of a single-ended pumped Tm:YAP crystal, the thermal stress coupled model used Comsol to theoretically calculate the effect of changing the pump spot size and pump depth on crystal heat distribution and stress distribution. The experimental results showed that the laser output power first increased and then decreased with increasing pump spot size. As the depth of focus increased, the laser output power first increased and then decreased. The experimental results were consistent with the theoretical simulation results. The theory of pump spot radius and depth of focus in this paper provided an effective simulation method for mitigating thermal effects, and provided theoretical supports for laser crystals to obtain higher laser output power.

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  7. E. Lippert, H. Fonnum, G. Arisholm, and K. StenersenA 22-watt mid-infrared optical parametric oscillator with V-shaped 3-mirror ring resonatorOpt. Express2010182647526483
  8. L. Jingliang, C. Xinyu, Y. Yongji, W. Chunting, B. Fang, and J. GuangyongAnalytical solution of the thermal effects in a high-power slab Tm:YLF laser with dual-end pumpingPhys. Rev. A201693013854
  9. G. ChenAnalytical solutions for temperature and thermal-stress modeling of solid material induced by repetitive pulse laser irradiationOptik20171351626
  10. J. Morris, N. K. Stevenson, H. T. Bookey, A. K. Kar, and A. A. Lagatsky1.9 μm waveguide laser fabricated by ultrafast laser inscription in Tm:Lu2O3 ceramicOpt. Express2017251491014917

Other (10)

J. Li, S. H. Yang, H. Y. Zhang, D. X. Hu, and C. M. ZhaoDiode-pumped room temperature single frequency Tm:YAP laserLaser Phys. Lett.20107203205

Q. Yao, Y. Dong, Q. Wang, and G. JinBeam quality improvement by controlling thermal lens spherical aberration in an end-pumped Nd:YVO4 laserAppl. Opt.20185722452249

Q. Pengfei, W. Shiyu, G. Zhen, C. Defang, and L. BingbinAdaptive adjusting technique of thermal effect to laser beam qualityActa Opt. Sin.2017370514001

K. Yumashev and P. LoikoThermal stress and end-bulging in monoclinic crystals: the case study of double tungstatesAppl. Opt.20175638573866

B. Fang, H. Zhulong, L. Jingliang, C. Xinyu, W. Chunting, and J. GuangyongThermal analysis of double-end-pumped Tm:YLF laserLaser Phys.201525075003

P. J. Hardman, W. A. Clarkson, G. J. Friel, and M. PollnauEnergy-transfer upconversion and thermal lensing in high-power end-pumped Nd:YLF laser crystalsIEEE J. Quantum Electron.201735647655

E. Lippert, H. Fonnum, G. Arisholm, and K. StenersenA 22-watt mid-infrared optical parametric oscillator with V-shaped 3-mirror ring resonatorOpt. Express2010182647526483

L. Jingliang, C. Xinyu, Y. Yongji, W. Chunting, B. Fang, and J. GuangyongAnalytical solution of the thermal effects in a high-power slab Tm:YLF laser with dual-end pumpingPhys. Rev. A201693013854

G. ChenAnalytical solutions for temperature and thermal-stress modeling of solid material induced by repetitive pulse laser irradiationOptik20171351626

J. Morris, N. K. Stevenson, H. T. Bookey, A. K. Kar, and A. A. Lagatsky1.9 μm waveguide laser fabricated by ultrafast laser inscription in Tm:Lu2O3 ceramicOpt. Express2017251491014917

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