中国物理B ›› 2004, Vol. 13 ›› Issue (8): 1263-1268.doi: 10.1088/1009-1963/13/8/014

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Resonator insensitive investigation to thermal lens for end-pumped lasers

龚传波, 陈长水, 宋秋鸣, 朱灵   

  1. Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
  • 收稿日期:2003-11-03 修回日期:2003-12-24 出版日期:2004-06-21 发布日期:2005-06-22

Resonator insensitive investigation to thermal lens for end-pumped lasers

Gong Chuan-Bo (龚传波), Chen Chang-Shui (陈长水), Song Qiu-Ming (宋秋鸣), Zhu Ling (朱灵)   

  1. Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
  • Received:2003-11-03 Revised:2003-12-24 Online:2004-06-21 Published:2005-06-22

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摘要： Optical pumping of solid-state lasers induces a thermal lens effect in the laser crystal; this thermal effect determines the beam properties. In this paper, the focal length of the thermal lens is calculated, and resonator parameter ($g_1 g_2$) is obtained, which is insensitive to thermal distortions when the product of the resonator parameters ($g_1, g_2$) equals 1/2. By using our calculated results, we get the fundamental transverse mode laser output with optic－optic conversion of 48.6%, and slope efficiency of 56.3%.

关键词: all solid-state laser, thermal lens, design of resonator, resonator insensitive to thermal distortions

Abstract: Optical pumping of solid-state lasers induces a thermal lens effect in the laser crystal; this thermal effect determines the beam properties. In this paper, the focal length of the thermal lens is calculated, and resonator parameter ($g_1 g_2$) is obtained, which is insensitive to thermal distortions when the product of the resonator parameters ($g_1, g_2$) equals 1/2. By using our calculated results, we get the fundamental transverse mode laser output with optic－optic conversion of 48.6%, and slope efficiency of 56.3%.

Key words: all solid-state laser, thermal lens, design of resonator, resonator insensitive to thermal distortions

中图分类号:  (Doped-insulator lasers and other solid state lasers)

  • 42.55.Rz
42.60.By (Design of specific laser systems) 42.70.Hj (Laser materials) 42.60.Jf (Beam characteristics: profile, intensity, and power; spatial pattern formation) 42.60.Da (Resonators, cavities, amplifiers, arrays, and rings)