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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 11, Iss. 6 — Mar. 24, 2003
  • pp: 552–559

Modeling of beam width in passively Q-switched end-pumped lasers

Jan K. Jabczyński, Jacek Kwiatkowski, and Waldemar Zendzian  »View Author Affiliations

Optics Express, Vol. 11, Issue 6, pp. 552-559 (2003)

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An iterative model based on the LambertW function was developed for estimating the fundamental mode parameters of resonators with saturable gain guiding. The process of pulse buildup in passively Q-switched, end-pumped lasers was analyzed. The effective ABCD cavity matrix for consecutive round-trips was calculated, taking into account spatially variable saturated gain in an active medium and absorption bleaching in a saturable absorber. The twofold decrease in beam width, as compared with the fundamental mode of the bare cavity, was demonstrated. The application of such a model for resonators with other nonlinear elements is feasible.

© 2002 Optical Society of America

OCIS Codes
(140.3410) Lasers and laser optics : Laser resonators
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3540) Lasers and laser optics : Lasers, Q-switched

ToC Category:
Research Papers

Original Manuscript: November 11, 2002
Revised Manuscript: March 13, 2003
Published: March 24, 2003

Jan Jabczynski, Jacek Kwiatkowski, and Waldemar Zendzian, "Modeling of beam width in passively Q-switched end-pumped lasers," Opt. Express 11, 552-559 (2003)

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