標題: | Power scale-up of high-pulse-energy passively Q-switched Nd:YLF laser: influence of negative thermal lens enhanced by upconversion |
作者: | Huang, Y. J. Tang, C. Y. Huang, Y. P. Huang, S. C. Su, K. W. Chen, Y. F. 電子物理學系 Department of Electrophysics |
關鍵字: | passive Q-switching;thermal lens;energy-transfer upconversion;Nd:YLF |
公開日期: | 2012 |
摘要: | "We develop a practical method to extend the power scale-up for a laser in a concave-plano cavity to be influenced by a large negative thermal lens. With the developed method, we successfully scale up the output power of a compact high-pulse-energy passively Q-switched Nd:YLF laser at 1053 nm with the Cr4+:YAG crystal as a saturable absorber. At an incident pump power of 12.6 W, the maximum output power under the optimum operation at 1053 nm reaches 2.61 W with a pulse width of 6 ns and a pulse repetition rate of 4.6 kHz. More importantly, we experimentally verify that the energy-transfer upconversion significantly enhances the negative focal length of thermal lens in the passively Q-switched Nd:YLF laser. (C) 2012 by Astro, Ltd." |
URI: | http://hdl.handle.net/11536/16768 |
ISSN: | 1612-2011 |
期刊: | LASER PHYSICS LETTERS |
Volume: | 9 |
Issue: | 9 |
結束頁: | 625 |
顯示於類別: | 期刊論文 |