High-efficiency 17 W, 80 MHz repetition rate,passively mode-locked TEM00 Nd:YAG oscillator pumped at 885 nm |
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| Authors: | X. -F. Zhang F. -Q. Li N. Zong X. -Y. Le D. -F. Cui Z. -Y. Xu |
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| Affiliation: | 1.School of Physics and Nuclear Energy Engineering,Beijing University of Aeronautics and Astronautics,Beijing,China;2.Key Laboratory of Optical Physics, Institute of Physics,Chinese Academy of Science,Beijing,China;3.Graduate School of the Chinese Academy of Science,Beijing,China;4.Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing,China |
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| Abstract: | We report on a passively mode-locked TEM00 Nd:YAG oscillator with the beam quality at M 2 = 1.1 by a semiconductor saturable absorber mirror under 885 nm laser diode direct pumping for the first time. A maximum average output power of 17 W at a repetition rate of 80 MHz with 39 ps pulse width was obtained under the absorbed pump power of 38 W, corresponding to an optical-optical efficiency of 44% and the slope efficiency of 69%, respectively. |
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