1357 nm passively Q-switched crystalline
ceramic laser based on multilayer graphene
Chao Feng1,2, Huanian Zhang3, Qingpu Wang1,2, Shicai Xu4
and Jiaxiong Fang1
1 Advanced Research Center for Optics, Shandong University, Jinan 250100, People’s Republic of China
2 School of Information Science & Engineering, Shandong University, Jinan 250100,
People’s Republic of China
3 School of Physics and Electronics, Shandong Normal University, Jinan 250014, People’s Republic of China
4 College of Physics and Electronic Information, Shandong Provincial Key Laboratory of Functional
Macromolecular Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023,
People’s Republic of China
E-mail: qpwang@sdu.edu.cn
Received 22 December 2015, revised 23 March 2016
Accepted for publication 23 March 2016
Published 13 April 2016
Abstract
1357 nm single wavelength passively Q-switched Nd:YAG ceramic lasers are demonstrated
with a multilayer graphene sheets saturable absorber (SA). During an increase in the incident
pump power, the laser exhibited stable Q-switched oscillation, which showed that our
graphene SA provided Q-switched modulation successfully. The maximum average output
power was 340 mW, and the corresponding pulse width, pulse repetition rate, single pulse
energy and peak power were 380 ns, 209 kHz, 53 μJ and 139 W, respectively. Our results
illustrate that graphene can be used as an SA for 1357 nm passively Q-switched Nd:YAG
ceramic lasers.
Keywords: passively Q-switched, grapheme, Nd:YAG ceramic, 1357 nm laser
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