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Proceedings Paper

12-KW high-power diode–pumped laser module
Author(s): Zhen Cai; Wen Qiang Lu; De-yong Wu; Song Xing Gao; Chun Tang; Kai Zhang
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Paper Abstract

For the advantage of long-life, high efficiency, low heat load and compact structure, diode pumped Laser (DPL) is used widely in different field such as military, communication and medicine etc. Diode-pumped Nd:YAG laser module is the integration of diodes (pumping source), coupling structure, cooling structure and laser medium through optimization. Being the core component of diode-pumped MOPA laser, the gain distribution of diode-pumped amplifier module influences the beam quality greatly. So it is very important to improve the uniformity of the module with high pumping power. This paper investigates, theoretically and experimentally, the elements which influence the gain distribute of laser medium. A high energy storage laser module have been manufactured. In this module a 8mm diameter Nd:YAG rod which is 120mm long is pumped by twelve diodes-arrays (the peak pump-power is 12kw). Each array is consisted of twelve diodes. Numerical calculation has been done to optimize the coupling structure. The experiment result approved that the gain coefficient of this module is 0.186/cm, from it we can infer that the storage power is about 700mJ per pulse.

Paper Details

Date Published: 26 January 2005
PDF: 4 pages
Proc. SPIE 5627, High-Power Lasers and Applications III, (26 January 2005); doi: 10.1117/12.573396
Show Author Affiliations
Zhen Cai, Chinese Academy of Engineering Physics (China)
Wen Qiang Lu, Chinese Academy of Engineering Physics (China)
De-yong Wu, Chinese Academy of Engineering Physics (China)
Song Xing Gao, Chinese Academy of Engineering Physics (China)
Chun Tang, Chinese Academy of Engineering Physics (China)
Kai Zhang, Chinese Academy of Engineering Physics (China)

Published in SPIE Proceedings Vol. 5627:
High-Power Lasers and Applications III
Dianyuan Fan; Ken-ichi Ueda; Jongmin Lee, Editor(s)

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