Picosecond passively mode-locked laser of 532 nm by reflective carbon nanotube

By using reflective single-walled carbon nanotube as the saturable absorber, passively continuous-wave mode-locked of Nd:YVO4/KTP green laser was realized for the first time. The 532 nm mode-locked pulse width was estimated to be approximately 7.1 ps. The maximum average output power of 456 mW at 532 nm was obtained at a pump power of 7.35 W, corresponding to the repetition rate of 87.14 MHz. The single pulse energy and peak power were 5.23 nJ and 0.74 kW, respectively. (C) 2013 Elsevier Ltd. All rights reserved