A diode-pumped Nd:YAG laser is passively Q switched by using F2− color centers in lithium fluoride as a saturable absorber. When cw pumped with a laser diode, the laser produces pulses of 20–30-nsec duration at 1064 nm, with an energy of as much as 20 μJ and a peak power of more than 1 kW. Data are presented on pulse width, energy, and repetition rate as a function of pump power. When the laser is operated at high pulse energy levels, a gradual bleaching of the saturable absorber is observed.
© 1990 Optical Society of America
Original Manuscript: January 22, 1990
Manuscript Accepted: February 14, 1990
Published: April 15, 1990
Jeffrey A. Morris and Clifford R. Pollock, "Passive Q switching of a diode-pumped Nd:YAG laser with a saturable absorber," Opt. Lett. 15, 440-442 (1990)