We report cw single-mode output at 1.34 μm in a Nd:YVO4 microchip laser pumped separately with a Ti:sapphire laser and a diode laser in the region of 809 nm. The 0.5 mm × 1.0 mm × 1.0 mm Nd3+-doped YVO4 crystal produced output powers as high as 60 mW with slope efficiencies as high as 40% and laser thresholds between 155 and 275 mW by use of a pumped volume of approximately 150-μm diameter and 0.5-mm length. Data are also presented for the laser’s performance as a function of pump wavelength and for the spectral variation of the output with crystal temperature.
© 1994 Optical Society of America
Original Manuscript: January 31, 1994
Published: July 1, 1994
G. C. Bowkett, T. Taira, H. Teranishi, G. W. Baxter, D. J. Booth, and T. Kobayashi, "Single-mode 1.34-μm Nd:YVO4 microchip laser with cw Ti:sapphire and diode-laser pumping," Opt. Lett. 19, 957-959 (1994)