14 April 2000 Efficient Nd:KGd(WO4)2laser at 1.538-μm wavelength
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Proceedings Volume 3929, Solid State Lasers IX; (2000) https://doi.org/10.1117/12.382756
Event: Symposium on High-Power Lasers and Applications, 2000, San Jose, CA, United States
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.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Eugene V. Raevsky, Alexander V. Gulin, Nikolai S. Ustimenko, Vladimir L. Pavlovitch, "Efficient Nd:KGd(WO4)2laser at 1.538-μm wavelength", Proc. SPIE 3929, Solid State Lasers IX, (14 April 2000); doi: 10.1117/12.382756; https://doi.org/10.1117/12.382756
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