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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 22 — Oct. 31, 2005
  • pp: 8725–8729

Nd:YAG ceramic laser obtained high slope-efficiency of 62% in high power applications

Yunfeng Qi, Xiaolei Zhu, Qihong Lou, Jianghua Ji, Jingxing Dong, and Yunrong Wei  »View Author Affiliations

Optics Express, Vol. 13, Issue 22, pp. 8725-8729 (2005)

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By using quite uniformly nine-stacks side-around arranged compact pumping system, a high power Nd:YAG ceramic quasi-CW laser with high slope efficiency of 62% has been demonstrated. With 450 W quasi-CW stacked laser diode bars pumping at 808 nm, performance of the Nd:YAG ceramic laser with different output coupling mirrors has been investigated. Optimum output power of 236 W at 1064 nm was obtained and corresponding optical-to-optical conversion efficiency was as high as 52.5%. The laser system operated quite stably and no saturation phenomena have been observed, which means higher output laser power could be obtained if injecting higher pumping power. The still-evolving Nd:YAG ceramics are potential super excellent media for high power practical laser applications.

© 2005 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3460) Lasers and laser optics : Lasers
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3580) Lasers and laser optics : Lasers, solid-state

ToC Category:
Research Papers

Original Manuscript: September 15, 2005
Revised Manuscript: October 12, 2005
Published: October 31, 2005

Yunfeng Qi, Xiaolei Zhu, Qihong Lou, Jianghua Ji, Jingxing Dong, and Yunrong Wei, "Nd:YAG ceramic laser obtained high slope-efficiency of 62% in high power applications," Opt. Express 13, 8725-8729 (2005)

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