LD-end-pumped passively Q-switched Nd:YAG ceramic laser with single wall carbon nanotube saturable absorber |
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| Authors: | C.Y. Li Y. Bo N. Zong Y.G. Wang B.X. Jiang Y.B. Pan G. Niu Z.W. Fan Q.J. Peng D.F. Cui Z.Y. Xu |
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| Affiliation: | 1. Beijing GK Laser Technology Co., Ltd., Chinese Academy of Sciences, Beijing 100192, China;2. RCLPT, Key Lab of Functional Crystal and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China;3. Department of Applied Physics and Materials Research Center, Hong Kong Polytechnic University, Hong Kong, China;4. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800, China |
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| Abstract: | We report on a LD-end-pumped passively Q-switched Nd:YAG ceramic laser by using a novel single wall carbon nanotube saturable absorber (SWCNT-SA). The SWCNT wafer was fabricated by electric Arc discharge method on quartz substrate with absorption wavelength of 1064 nm. We firstly investigated the continuous wave (CW) laser performance and scattering properties of Nd:YAG ceramic sample. For the case of passively Q-switched operation, a maximum output power of 376 mW was obtained at an incident pump power of 8.68 W at 808 nm, corresponding to an optical–optical conversion efficiency of 4.3%. The repetition rate as the increase of pump power varied from 14 to 95 kHz. The minimum pulse duration of 1.2 μs and maximum pulse energy of 4.5 μJ was generated at a repetition rate of 31.8 kHz. |
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