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Proceedings Paper

Output characteristics of a passively Q-switched diode-laser pumped ceramic Nd:YAG laser
Author(s): Duck-Lae Kim; Beom-Seok Lee; Hee-Sang Yoo; Jae-Yong Jeong; Yeong-Sik Kim
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Paper Abstract

A passively Q-switched diode-laser pumped ceramic Nd:YAG laser has been constructed and the output characteristics has been investigated. The output efficiency of 36.1 % has been obtained with 1.1 at.% of neodymium concentration in the ceramic YAG. For the case of neodymium concentration of 2.0 at.%, the output power decreases as the pump power increases over 6 W. The output power has rapidly decreased more than 10 W of pumping, and the laser output has finally disappeared at pumping power of 13 W. This phenomenon can be explained by the thermal lens effect in the laser material. Passive Q-switching has been carried out using a Cr:YAG crystal in the resonator. The pulse width is 61.2 ns and the repetition rate is 10.1 kHz at the pump power of 1 W. The beam propagation factor M2 has been measured to be 1.2, which shows good beam quality of the Q-switched pulse.

Paper Details

Date Published: 14 February 2008
PDF: 8 pages
Proc. SPIE 6871, Solid State Lasers XVII: Technology and Devices, 68712I (14 February 2008);
Show Author Affiliations
Duck-Lae Kim, Dankook Univ. (South Korea)
Beom-Seok Lee, Dankook Univ. (South Korea)
Hee-Sang Yoo, Dankook Univ. (South Korea)
Jae-Yong Jeong, Dankook Univ. (South Korea)
Yeong-Sik Kim, Dankook Univ. (South Korea)

Published in SPIE Proceedings Vol. 6871:
Solid State Lasers XVII: Technology and Devices
W. Andrew Clarkson; Norman Hodgson; Ramesh K. Shori, Editor(s)

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