Modeling of actively Q-switched quasi-three-level lasers

Chen Zhang; Xingyu Zhang; Qingpu Wang; Zhenhua Cong; Huihua Xu

doi:10.1109/JQE.2010.2089603

Modeling of actively Q-switched quasi-three-level lasers

Chen Zhang^*
, Xingyu Zhang
, Qingpu Wang
, Zhenhua Cong
, Huihua Xu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

The rate equations for the quasi-three-level actively Q-switched lasers are obtained by considering the reabsorption of the lower laser level and the spatial distributions of the intracavity photon density and the population inversion density. These rate equations are normalized by introducing three new parameters. By solving the normalized rate equation numerically, a group of general curves is generated. These curves can give a good understanding of the dependences of the laser pulse characteristics on the new parameters. The curves and the related formulae can also be used to estimate the laser pulse characteristics of any quasi-three-level actively Q-switched laser. A sample calculation for a 946-nm actively Q-switched Nd:YAG ceramic laser is presented to demonstrate the use of the related formulae.

Original language	English
Article number	5730178
Pages (from-to)	455-461
Number of pages	7
Journal	IEEE Journal of Quantum Electronics
Volume	47
Issue number	4
DOIs	https://doi.org/10.1109/JQE.2010.2089603
State	Published - 2011
Externally published	Yes

Keywords

Active Q-switching
quasi-three-level lasers
rate equations
reabsorption of the lower level

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10.1109/JQE.2010.2089603

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title = "Modeling of actively Q-switched quasi-three-level lasers",

abstract = "The rate equations for the quasi-three-level actively Q-switched lasers are obtained by considering the reabsorption of the lower laser level and the spatial distributions of the intracavity photon density and the population inversion density. These rate equations are normalized by introducing three new parameters. By solving the normalized rate equation numerically, a group of general curves is generated. These curves can give a good understanding of the dependences of the laser pulse characteristics on the new parameters. The curves and the related formulae can also be used to estimate the laser pulse characteristics of any quasi-three-level actively Q-switched laser. A sample calculation for a 946-nm actively Q-switched Nd:YAG ceramic laser is presented to demonstrate the use of the related formulae.",

keywords = "Active Q-switching, quasi-three-level lasers, rate equations, reabsorption of the lower level",

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publisher = "Institute of Electrical and Electronics Engineers Inc.",

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TY - JOUR

T1 - Modeling of actively Q-switched quasi-three-level lasers

AU - Zhang, Chen

AU - Zhang, Xingyu

AU - Wang, Qingpu

AU - Cong, Zhenhua

AU - Xu, Huihua

PY - 2011

Y1 - 2011

N2 - The rate equations for the quasi-three-level actively Q-switched lasers are obtained by considering the reabsorption of the lower laser level and the spatial distributions of the intracavity photon density and the population inversion density. These rate equations are normalized by introducing three new parameters. By solving the normalized rate equation numerically, a group of general curves is generated. These curves can give a good understanding of the dependences of the laser pulse characteristics on the new parameters. The curves and the related formulae can also be used to estimate the laser pulse characteristics of any quasi-three-level actively Q-switched laser. A sample calculation for a 946-nm actively Q-switched Nd:YAG ceramic laser is presented to demonstrate the use of the related formulae.

AB - The rate equations for the quasi-three-level actively Q-switched lasers are obtained by considering the reabsorption of the lower laser level and the spatial distributions of the intracavity photon density and the population inversion density. These rate equations are normalized by introducing three new parameters. By solving the normalized rate equation numerically, a group of general curves is generated. These curves can give a good understanding of the dependences of the laser pulse characteristics on the new parameters. The curves and the related formulae can also be used to estimate the laser pulse characteristics of any quasi-three-level actively Q-switched laser. A sample calculation for a 946-nm actively Q-switched Nd:YAG ceramic laser is presented to demonstrate the use of the related formulae.

KW - Active Q-switching

KW - quasi-three-level lasers

KW - rate equations

KW - reabsorption of the lower level

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DO - 10.1109/JQE.2010.2089603

M3 - 文章

AN - SCOPUS:79952843322

SN - 0018-9197

VL - 47

SP - 455

EP - 461

JO - IEEE Journal of Quantum Electronics

JF - IEEE Journal of Quantum Electronics

IS - 4

M1 - 5730178

ER -

Modeling of actively Q-switched quasi-three-level lasers

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Keywords

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