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Proceedings Paper

Efficient Nd:KGd(WO4)2 laser at 1.538-um wavelength
Author(s): Eugene V. Raevsky; Alexander V. Gulin; Nikolai S. Ustimenko; Vladimir L. Pavlovitch
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Paper Abstract

The radiation at around 1.5 micrometers has been extensively investigated over the last few years for eye-safe applications. This paper describes the development and performance of a pulsed solid-state laser based on nonlinear frequency conversion of the Nd:KGd(WO4)2 fundamental radiation into the near-infrared region of the spectrum. Neodymium-doped potassium gadolinium tungstate Nd:KGd(WO4)2 (Nd:KGW) possesses a combination of spectral and lasing characteristics uniquely favorable for laser operation. The explanation for the high efficiency which can be achieved with this material follows from high effective stimulated-emission cross section of laser transition. Also, in contrast to Nd:YAG, Nd:KGW is an efficient Raman medium. In the present paper most attention has been concentrated on the self-conversion of the laser wavelength at 1.351 micrometers to the first Stokes line at 1.538 micrometers . In conclusion, we have demonstrated a compact low-threshold source for the near-IR in a configuration of an intra-cavity solid-state Raman laser based on a flashlamp-pumped Nd:KGW laser crystal. The small size and high efficiency of this laser makes it an attractive source for a large number of applications such as communications and optical atmospheric studies.

Paper Details

Date Published: 14 April 2000
PDF: 5 pages
Proc. SPIE 3929, Solid State Lasers IX, (14 April 2000); doi: 10.1117/12.382756
Show Author Affiliations
Eugene V. Raevsky, Polyus Research and Development Institute (Russia)
Alexander V. Gulin, Polyus Research and Development Institute (Russia)
Nikolai S. Ustimenko, Polyus Research and Development Institute (Russia)
Vladimir L. Pavlovitch, Polyus Research and Development Institute (Russia)

Published in SPIE Proceedings Vol. 3929:
Solid State Lasers IX
Richard Scheps, Editor(s)

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