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http://dx.doi.org/10.3807/KJOP.2005.16.2.152

Output Characteristics of a Q-Switched Nd:YAG laser with GRM(Gaussian Reflectivity Mirror) unstable resonator  

Lee, Hee-Chul (Ilsan Technotown)
Kim, Yong-Pyung (College of Electronics and Information / Institute for Laser Engineering Kyunghee University)
Publication Information
Korean Journal of Optics and Photonics / v.16, no.2, 2005 , pp. 152-158 More about this Journal
Abstract
We investigated the operational characteristics of a Q-switched Nd:YAG laser, which has an unstable resonator with a GRM(Gaussian reflectivity mirror). With electrical input energy of 55 J, we obtained the fundamental energy of 470 mJ at 1064 nm and the frequency doubled energy of 280 mJ at 532 nm. The Top-Hat profile of the output beam was obtained at the near field, and beam divergence was 1.7 mard.
Keywords
Unstable resonator; Nd:YAG laser; GRM; Q-switching;
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