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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 6 — Feb. 20, 2002
  • pp: 1075–1081

Passively Q-Switched Quasi-Three-Level Laser and Its Intracavity Frequency Doubling

Chun-Wei Wang, Yi-Lung Weng, Pi-Ling Huang, Huy-Zu Cheng, and Sheng-Lung Huang  »View Author Affiliations


Applied Optics, Vol. 41, Issue 6, pp. 1075-1081 (2002)
http://dx.doi.org/10.1364/AO.41.001075


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Abstract

A passively Q-switched quasi-three-level Nd:YAG laser is intracavity frequency doubled to generate a blue laser. The 473-nm blue laser has a peak power of 37 W and a pulse width of 23 ns at a pumping power of 1.6 W. To model this laser numerically, we developed rate equations by taking into consideration both the quasi-three-level nature of the gain medium and the four-level nature of the saturable absorber. Good agreement was achieved between experimental and simulated results for both the fundamental and the second-harmonic output. The reabsorption loss of the gain medium is estimated under pulsed operation.

© 2002 Optical Society of America

OCIS Codes
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3540) Lasers and laser optics : Lasers, Q-switched
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.5940) Nonlinear optics : Self-action effects

Citation
Chun-Wei Wang, Yi-Lung Weng, Pi-Ling Huang, Huy-Zu Cheng, and Sheng-Lung Huang, "Passively Q-Switched Quasi-Three-Level Laser and Its Intracavity Frequency Doubling," Appl. Opt. 41, 1075-1081 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-6-1075

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