A comparative study of the laser performance of diode-laser pumped Nd:GdVO₄ and Nd:YVO4 crystals

Wang, C.Q., Chow, Y.T., Reekie, L., Gambling, W.A., Zhang, H.J., Zhu, L. and Meng, X.L. (2000) A comparative study of the laser performance of diode-laser pumped Nd:GdVO₄ and Nd:YVO4 crystals. Applied Physics B: Lasers and Optics, 70 (6), 769-772. (doi:10.1007/PL00021132).

Abstract

A comparative study of Nd:GdVO₄ and Nd:YVO₄ crystal lasers pumped by a cw diode laser has been conducted at the fundamental wavelengths of 1.06 µm and 1.34 µm, as well as when intracavity frequency-doubled to 532 nm and 670 nm, respectively. At these four wavelengths, maximum output powers from the Nd:GdVO₄ crystal laser were 1.27 W, 800 mW, 610 mW, and 82 mW at a diode-launched pump power of 2.9 W. The threshold pump powers were 64 mW, 159 mW, 5 mW, and 12 mW, respectively. All the results obtained from Nd:GdVO₄ were superior to those of Nd:YVO₄, indicating that Nd:GdVO₄ is a more efficient laser crystal than Nd:YVO₄ for diode-pumped solid-state lasers.

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