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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 17, Iss. 7 — Jul. 1, 2000
  • pp: 1166–1175

Modeling of passively Q-switched lasers

Xingyu Zhang, Shengzhi Zhao, Qingpu Wang, B. Ozygus, and H. Weber  »View Author Affiliations


JOSA B, Vol. 17, Issue 7, pp. 1166-1175 (2000)
http://dx.doi.org/10.1364/JOSAB.17.001166


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Abstract

The intracavity photon density and the initial population-inversion density in the diode-pumped passively Q-switched laser rate equations are assumed to be Gaussian spatial distributions. These space-dependent rate equations are solved numerically, and a group of general curves are generated. These curves clearly show the dependence of the pulse characteristics on the pump- to laser-mode size ratio and the parameters of the gain medium, the saturable absorber, and the resonator. They can also be used to estimate the pulse parameters of an arbitrary diode-pumped passively Q-switched laser and to determine the optimal pump- to laser-mode size ratio. In addition, these curves are not limited to diode-pumped lasers. Sample calculations for a diode-pumped Nd3+:YVO4 laser and a flash-lamp pumped Nd3+:YAG laser are presented to demonstrate the use of the curves and the related formulas.

© 2000 Optical Society of America

OCIS Codes
(140.3430) Lasers and laser optics : Laser theory
(140.3460) Lasers and laser optics : Lasers
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3540) Lasers and laser optics : Lasers, Q-switched
(140.3580) Lasers and laser optics : Lasers, solid-state

Citation
Xingyu Zhang, Shengzhi Zhao, Qingpu Wang, B. Ozygus, and H. Weber, "Modeling of passively Q-switched lasers," J. Opt. Soc. Am. B 17, 1166-1175 (2000)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-17-7-1166

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