Efficient laser performance is demonstrated with Nd:GdVO4 crystals grown by the floating zone method. With a 2-at. % Nd-doped crystal a slope efficiency of 67% is achieved with pumping at 808 nm. We also find that pumping at 879 nm with a bandwidth of 1.8 nm is practical for laser diode pumping. With this pumping level the slope efficiency reaches 78%. High-quality Nd:GdVO4 crystals are successfully grown with as much as 15-at. % Nd concentration by the floating zone method without inclusions or macroscopic defects. Homogeneity and high reproducibility of crystal growth are confirmed.
© 2003 Optical Society of America
Takayo Ogawa, Yoshiharu Urata, Satoshi Wada, Koichi Onodera, Hiroshi Machida, Hideaki Sagae, Mikio Higuchi, and Kohei Kodaira, "Efficient laser performance of N:dGdVO4 crystals grown by the floating zone method," Opt. Lett. 28, 2333-2335 (2003)