An efficient, 459-nm, resonantly pumped Nd:YAG sum-frequency upconversion laser is described. The pump beam from a single-frequency 805-nm laser diode was resonantly enhanced inside the laser cavity and summed with the 1064-nm circulating field. A blue output of 1.2 mW was obtained at an input power of 50 mW.
© 1992 Optical Society of America
Original Manuscript: August 30, 1991
Published: January 15, 1992
P. N. Kean and G. J. Dixon, "Efficient sum-frequency upconversion in a resonantly pumped Nd:YAG laser," Opt. Lett. 17, 127-129 (1992)