Applied Physics B

, Volume 108, Issue 2, pp 313–317

Efficient passively Q-switched Nd:YLF TEM00-mode laser at 1053 nm: selection of polarization with birefringence

  • Y. J. Huang
  • C. Y. Tang
  • W. L. Lee
  • Y. P. Huang
  • S. C. Huang
  • Y. F. Chen
Article

DOI: 10.1007/s00340-012-4933-9

Cite this article as:
Huang, Y.J., Tang, C.Y., Lee, W.L. et al. Appl. Phys. B (2012) 108: 313. doi:10.1007/s00340-012-4933-9

Abstract

The natural birefringence of the Nd:YLF crystal is utilized to achieve a reliable TEM00-mode linearly polarized laser at 1053 nm in a compact concave-plano resonator. The efficient selection of the polarization relies on the combined effect of the difference in diffraction angle for σ- and π-polarization of a wedged laser crystal and the alignment sensitivity of an optical resonator. We further employ a Cr4+:YAG saturable absorber to perform the passively Q-switched operation. At an incident pump power of 12 W, the maximum average output power is up to 2.3 W with a pulse repetition rate of 8 kHz and a pulse width of 9 ns. The pulse energy and peak power are found to be 288 μJ and 32 kW, respectively.

Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  • Y. J. Huang
    • 1
  • C. Y. Tang
    • 1
  • W. L. Lee
    • 1
  • Y. P. Huang
    • 1
  • S. C. Huang
    • 1
  • Y. F. Chen
    • 1
  1. 1.Department of ElectrophysicsNational Chiao Tung UniversityHsinchuTaiwan