Abstract

We studied second harmonic generation using 9-ppm cerium-doped KTiOPO₄. A conversion efficiency of 65 % was achieved using a flashlamp-pumped Nd:YAG laser. Optical damage was fully suppressed using a heated cerium-doped KTiOPO₄ at 145^oC. The crystal also brought an efficient quasi-continuous-wave 532-nm-light-source pumped with a mode-locked Nd:YAG laser. When the mode-locked laser was pumped with 24-W laser-diode, an output power of 3.2 W at 532 nm was obtained and the power was 15% higher than that using a commercial KTiOPO₄.

© 2005 Optical Society of America