Graphene Based Passively Q-Switched Nd:YAG Eye-Safe Laser
ZHANG Hua-Nian1, LI Ming3, CHEN Xiao-Han1, WANG Qing-Pu1, LI Ping1,2**
1School of Information Science and Engineering, and Shandong Provincial Key Laboratory of Laser Technology and Application, Shandong University, Jinan 250100 2State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100 3State Food and Drug Administration, Jinan Quality Supervision and Inspection Center for Medical Device, Jinan 250100
Abstract：A passively Q-switched Nd YAG eye-safe laser operating at 1444 nm with graphene as a saturable absorber is reported. Under a pump power of 23.7 W, the maximum average output power, minimum pulse width, pulse repetition rate and single pulse energy are 411 mW, 560 ns, 85 kHz, and 4.83 μJ, respectively. This is the first demonstration of a Nd:YAG eye-safe laser passively Q-switched by graphene.
2014, Vol. 31 
