Numerical Modelling of QCW-Pumped Passively Q-Switched Nd:YAG Lasers with Cr<SUP>4+</SUP>:YAG as Saturable Absorber

Chin. Phys. Lett.

2008, Vol. 25

Issue (8): 2880-2883 DOI:

Original Articles

Numerical Modelling of QCW-Pumped Passively Q-Switched Nd:YAG Lasers with Cr⁴⁺:YAG as Saturable Absorber

WANG Yu-Ye^1,2, XU De-Gang^1,2, XIONG Jing-Ping^1,2, WANG Zhuo^1,2, WANG Peng^1,2, YAO Jian-Quan ^1,2

¹Institute of Laser and Optoelectronics, College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072²Key Laboratory of Optoelectric Information Science and Technology (Ministry of Education), Tianjin University, Tianjin 300072

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WANG Yu-Ye, XU De-Gang, XIONG Jing-Ping et al 2008 Chin. Phys. Lett. 25 2880-2883

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Abstract Passively Q-switched quasi-continuous-wave (QCW) diode-pumped Nd:YAG laser with Cr⁴⁺:YAG as saturable absorber is numerically investigated by solving the coupled rate equations. The threshold pump rate for passively Q-switched QCW-pumped laser is derived. The effects of the pump rate and pump-pulse duration on the laser operation characteristics are studied theoretically. The pump power range can be estimated according to the number of output pulses. The numerical simulation results are in good agreement with the experimental results.

Keywords: 42.60.Gd 42.55.Xi 42.70.Mp 02.60.Cb

Received: 16 April 2008 Published: 25 July 2008

PACS:	42.60.Gd	(Q-switching)
	42.55.Xi	(Diode-pumped lasers)
	42.70.Mp	(Nonlinear optical crystals)
	02.60.Cb	(Numerical simulation; solution of equations)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2008/V25/I8/02880

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	WANG Yu-Ye
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