We demonstrate that intracavity frequency doubling of Nd:YVO4 pumped by a laser diode can be stabilized by use of a wavelength-locking system of the laser diode with a transmission-type optical filter in a confocal optical configuration. The wavelength locking of the laser diode to the peak wavelength of the absorption spectrum of Nd:YVO4 yielded stable green light of 10-mW power for an incident pumping power of 55 mW.
© 1994 Optical Society of America
Original Manuscript: December 14, 1993
Published: June 1, 1994
Y. Kitaoka, K. Yamamoto, and M. Kato, "Intracavity frequency doubling of a Nd:YVO4 laser pumped by a wavelength-locked laser diode using a transmission-type optical filter," Opt. Lett. 19, 810-812 (1994)