Applied Physics B

, Volume 99, Issue 1–2, pp 115–119 | Cite as

Highly efficient continuous-wave intracavity frequency-doubled Nd:YVO4-LBO laser at 457 nm under diode pumping into the emitting level 4F3/2

  • Y. F. Lü
  • X. H. Zhang
  • X. D. Yin
  • J. Xia
  • A. F. Zhang
  • J. Q. Lin
Article

Abstract

The continuous-wave high efficiency laser emission of Nd:YVO4 at the fundamental wavelength of 914 nm and its 457 nm second harmonic obtained by intracavity frequency doubling with an LBO nonlinear crystal is investigated under pumping by diode laser at 880 nm into emitting level 4F3/2. 6.5 W at 457 nm with M 2=1.8 was obtained from a 5-mm-thick 0.4 at.% Nd:YVO4 laser medium and a 15-mm-long LBO nonlinear crystal in a Z-type cavity for 18.6 W absorbed pump power. An optical-to-optical efficiency with respect to the absorbed pump power was 0.35. Comparative results obtained for the pump with diode laser at 808 nm, into the highly-absorbing level 4F5/2, are given in order to prove the advantages of the 880 nm wavelength pumping.

PACS

42.55.Rz 42.70.Hj 78.55.Kz 

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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • Y. F. Lü
    • 1
  • X. H. Zhang
    • 1
  • X. D. Yin
    • 2
  • J. Xia
    • 1
  • A. F. Zhang
    • 3
  • J. Q. Lin
    • 1
  1. 1.School of SciencesChangchun University of Sciences and TechnologyChangchunChina
  2. 2.Jilin Junkun Optoelectronics Company LimitedChangchunChina
  3. 3.Laboratory of Info-integration TechnologyXi’an Institute of Applied OpticsXi’anChina

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