High efficiency passive mode-locked Nd:YVO4 laser based on SESAM under direct pumping at 880 nm |
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| Authors: | L. Sun H. J. Yu L. Zhang L. Guo J. Zhang Z. Y. Dong B. Xiong W. Hou X. C. Lin J. M. Li |
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| Affiliation: | 1.Laboratory of All-Solid-State Laser Sources, Institute of Semiconductors,Chinese Academy of Sciences,Beijing,China;2.Department of Mechanical Engineering,Tsinghua University,Beijing,China |
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| Abstract: | We report on an 880 nm LD pumped passive mode-locked TEM00 Nd:YVO4 laser based on a semiconductor saturable absorber mirror (SESAM), with a high optical-to-optical conversion efficiency of 67.3%, and a slope efficiency of 71%. When the absorbed pump power was 11 W, 7.4 W average output power of 1064 nm continuous-wave mode-locked laser was achieved. To our knowledge, this is the highest optical-to-optical conversion efficiency among all the published reports of 880 nm LD pumped SESAM passive mode-locked lasers. The repetition rate of mode-locked pulse was 80 MHz with 26 ps pulse width. The maximum pulse energy and peak power were 92.5 nJ and 3.6 kW, respectively. |
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