We report a singly resonant pulsed intracavity KTiOPO>4 optical parametric oscillator that uses a semi-monolithic microchip laser design. The compact (50-mm-long), low-threshold (1.3-W) cavity uses a novel quadrupole deflector Q switch to give 4-µJ pulses at 1.064 µm and 0.4-µJ signal pulses of 5.6-ns duration at 1.53 µm with a repetition frequency of 5 kHz when it is pumped with a 2-W laser diode. The signal pulses are diffraction limited and single frequency.
© 1998 Optical Society of America
(140.3530) Lasers and laser optics : Lasers, neodymium
R. S. Conroy, C. F. Rae, G. J. Friel, M. H. Dunn, B. D. Sinclair, and J. M. Ley, "Compact low-threshold Q-switched intracavity optical parametric oscillator," Opt. Lett. 23, 1348-1350 (1998)