Chinese Optics Letters, 2013, 11 (7): 071401, Published Online: Jul. 4, 2013
Q-switched pulse generation from an all-f iber distributed Bragg reflector laser using graphene as saturable absorber Download: 755次
Abstract
A Q-switched distributed Bragg reflector fiber laser using a graphene passive saturable absorber is proposed in a cavity consisting of a fiber Bragg grating and Faraday rotator mirror as end mirrors, together with a highly doped erbium-doped fiber as a gain source. The laser has a Q-switched threshold of about 28 mW and a tunable repetition rate of 10.4–18.0 kHz with varying pump power. The shortest pulse width obtained from the system is 3.7 μs, with a maximum pulse energy and peak power of 22.2 nJ and 3.4 mW, respectively.
H. Ahmad, F. D., M. Z., S. W.. Q-switched pulse generation from an all-f iber distributed Bragg reflector laser using graphene as saturable absorber[J]. Chinese Optics Letters, 2013, 11(7): 071401.