Laser Physics

, Volume 19, Issue 7, pp 1389–1394

12-W red light generation by frequency-doubling Q-switched Nd:YAG laser

  • B. -T. Zhang
  • J. -F. Yang
  • J. -L. He
  • H. -T. Huang
  • X. -L. Dong
  • J. -L. Xu
  • C. -H. Zuo
  • K. -J. Yang
Solid State and Liquid Lasers

Abstract

By using a 15 mm-long type I phase-matching LBO crystal, a maximum quasi-continuous wave red laser output power of 12 W has been obtained by intra-cavity second-harmonic generation (SHG) in a compact acousto-optically Q-switched diode-side-pumped Nd:YAG laser. The corresponding optical-optical conversion efficiency is 6.6%. The power instability at the maximum output power is observed to be less than 4.62% during half an hour. The beam quality factor M2 is measured to be 9.9 ± 1.0 by the knife-edge method. The spectrum of the red radiation is also measured and discussed.

PACS numbers

42.70.Hj 42.65.Yj 42.55.Xi 

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Copyright information

© Pleiades Publishing, Ltd. 2009

Authors and Affiliations

  • B. -T. Zhang
    • 1
  • J. -F. Yang
    • 1
  • J. -L. He
    • 1
  • H. -T. Huang
    • 1
  • X. -L. Dong
    • 1
  • J. -L. Xu
    • 1
  • C. -H. Zuo
    • 1
  • K. -J. Yang
    • 1
  1. 1.State Key Laboratory of Crystal Materials, Institute of Crystal MaterialsShandong UniversityJi’nanChina

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