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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 22, Iss. 2 — Feb. 1, 2005
  • pp: 378–384

2.27-W Q-switched self-doubling Yb:YAB laser with controllable pulse length

Peter Dekker, Judith M. Dawes, and James A. Piper  »View Author Affiliations

JOSA B, Vol. 22, Issue 2, pp. 378-384 (2005)

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We report 95% conversion from the optimized Q-switched fundamental output to green output in the self-frequency doubling material Yb:YAB. Maximum average green powers of 2.27 W were obtained at 520-522 nm. The diode-to-green conversion efficiency was 26%. Operating at 10 kHz we obtained pulse widths ranging from 100 ns to 2 µs. The pulse duration was critically dependent on the strength of the nonlinear coupling and on the time that the acousto-optic Q switch was open. Numerical modeling of the system is found to predict the observed pulse-lengthening effect as well as high-average-power second-harmonic generation over a broad wavelength range.

© 2005 Optical Society of America

OCIS Codes
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3540) Lasers and laser optics : Lasers, Q-switched
(140.3600) Lasers and laser optics : Lasers, tunable
(190.2620) Nonlinear optics : Harmonic generation and mixing

Peter Dekker, Judith M. Dawes, and James A. Piper, "2.27-W Q-switched self-doubling Yb:YAB laser with controllable pulse length," J. Opt. Soc. Am. B 22, 378-384 (2005)

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