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Proceedings Paper

Gain-switching of a LD end-pumped Nd:YVO4 microchip laser
Author(s): Fang Sheng; Jun Chen; Jianhong Ge
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Paper Abstract

A study of the gain-switching process and output characteristics in a Nd:YVO4 microchip laser end-pumped by a fiber-coupled laser diode (LD) is reported here. The gain-switched laser pulses with controllable repetition-rate from 1Hz to 4kHz and pulse width of 16 ns are obtained. To analyze the gain-switching dynamics of the LD end-pumped Nd:YVO4 microchip laser, a theoretical model has been developed. The model is based on the rate equations of four-level systems and some practical physics conditions. Numerical simulations using the model illustrate the dependence of buildup time, pulse width and peak power of the gain-switched laser pulse on the pumping parameters. The experimental results coincide well with the theoretical analysis.

Paper Details

Date Published: 20 January 2005
PDF: 6 pages
Proc. SPIE 5628, Semiconductor Lasers and Applications II, (20 January 2005); doi: 10.1117/12.575543
Show Author Affiliations
Fang Sheng, China Jiliang Univ. (China)
Zhejiang University (China)
Jun Chen, Zhejiang Univ. (China)
Jianhong Ge, Zhejiang Univ. (China)

Published in SPIE Proceedings Vol. 5628:
Semiconductor Lasers and Applications II
Jian-quan Yao; Yung Jui Chen; Seok Lee, Editor(s)

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