The laser performance of highly neodymium-doped yttrium aluminum garnet (YAG) crystals is reported. In cw laser-diode pumping, a slope efficiency of 54% was achieved for a 2-at. %-doped sample, which was comparable with the slope efficiency of 55% of YVO<sub>4</sub> . The crystal also exhibited a slope efficiency of 64% under pulsed Ti:sapphire pumping. Such a high efficiency suggests a total cavity loss of ~1% , which is as low as that of commercially available 1-at. % YAG crystal. The excellent performance of the neodymium-doped YAG crystals indicates their high optical quality.
© 2001 Optical Society of America
Y. Urata, S. Wada, H. Tashiro, and P. Deng, "Laser performance of highly neodymium-doped yttrium aluminum garnet crystals," Opt. Lett. 26, 801-803 (2001)