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Proceedings Paper

Characterization of Nd:GdVO4 crystals for high-efficiency diode-pumped lasers
Author(s): Ivan Alexandrov Shcherbakov; Alexander I. Zagumennyi
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Paper Abstract

In this paper we report about the growing and laser operation of Nd:GdVO4. From a technological point of view this material has a number of advantages, which open the possibility for the growth of this large size crystal for mass production. In the last few years a handful of neodymium-doped vanadium-based crystals have been identified as potential successors to Nd:YAG. These crystals include yttrium orthovanadate (YVO4), gadolinium orthovanadate, (GdVO4) and strontium fluorovanadate (SVAP or Sr5(VO4)3F). All are promising substitutes for Nd:YAG in diode-pumped laser products. The laser cross section for the vanadate crystals range from 1.8 to 5.6 times greater than ND:YAG. They also maintain a strong singleline emission with nearly the same peak wavelength as Nd:YAG. The vanadate crystals are uniaxial, producing only polarized laser output, thus undesirable thermally induced birefringence. In addition, the peak pump wavelength for all crystals is 808 nm, the standard wavelength of currently manufactured high power diodes for laser pumping. Broad pump bandwidths of Nd3+ ions in vanadate laser materials mean more efficient pumping operation at a wider range of temperatures and a range of diode specifications, resulting in a less-expensive product. For the first time in work at Moscow General Physics Institute (GPI) and the Institute of Laser Physics (Hamburg, Germany) Nd:GdVO4 was examined in a diode-pumped laser.

Paper Details

Date Published: 1 March 1995
PDF: 9 pages
Proc. SPIE 2498, Laser Methods of Surface Treatment and Modification: ALT '94 International Conference, (1 March 1995); doi: 10.1117/12.203632
Show Author Affiliations
Ivan Alexandrov Shcherbakov, General Physics Institute (Russia)
Alexander I. Zagumennyi, General Physics Institute (Russia)

Published in SPIE Proceedings Vol. 2498:
Laser Methods of Surface Treatment and Modification: ALT '94 International Conference
Alexander M. Prokhorov; Vladimir I. Pustovoy, Editor(s)

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