Analysis of thermal effect in LDA side pumping Nd:YAG solid state lasers

dai qin; li xin-zhong; wang xi-jun

Volume 19 Issue 02

Feb. 2007

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Article Navigation > High Power Laser and Particle Beams > 2007 > 19(02): 0-

han dao-wen, liu wen-qing, zhang yu-jun, et al. Memorable glide window integral algorithm for retrieving cloud height[J]. High Power Laser and Particle Beams, 2008, 20.

Citation:

dai qin, li xin-zhong, wang xi-jun, et al. Analysis of thermal effect in LDA side pumping Nd:YAG solid state lasers[J]. High Power Laser and Particle Beams, 2007, 19.

han dao-wen, liu wen-qing, zhang yu-jun, et al. Memorable glide window integral algorithm for retrieving cloud height[J]. High Power Laser and Particle Beams, 2008, 20.

Citation:

dai qin, li xin-zhong, wang xi-jun, et al. Analysis of thermal effect in LDA side pumping Nd:YAG solid state lasers[J]. High Power Laser and Particle Beams, 2007, 19.

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Analysis of thermal effect in LDA side pumping Nd:YAG solid state lasers

1.
State Key Laboratory Of Applied Optics,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130031,China;
2.
Graduate School,Chinese Academy of Sciences,Beijing 100039,China

Publish Date: 2007-02-15

Abstract

Abstract

The pump LD intensity distribution model under the Gaussian intensity approximate condition was revised, and the numerical model of the temperature field was established in the crystal cylinder of diode side-pumping solid state laser. The temperature field and warming process of the transient and steady state in the laser rod by symmetrical trigonal side-pumping were simulated using the finite element analysis method. The temperature field distributions in the laser crystal of the Gaussian intensity and uniform intensity hypothesis were presented and compared, and the thermal lens focus of the crystal cylinder was measured experimentally. It is concluded that the LDA pumping structure and the non-uniformity of the cooling field make the experiment results divergent from those of the simula
- diode pumping solid state lasers,
- temperature field,
- thermal effect,
- numerical model,
- finite element analysis

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