Transition excitation at 09 μm by multiphoton pumping of Nd^3+-doped fibers
- 1 April 1990
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 15 (18) , 1008-1010
- https://doi.org/10.1364/ol.15.001008
Abstract
Multiwavelength oscillations near 0.9 μm (i.e., 0.88–0.98 μm) have been obtained in a Nd3+-doped silica-based single-mode optical fiber. The laser pump wavelength is 1.064 μm, with an average pump power of approximately 1.8 GW/m2. The observed emission rate has reached a few percent. We discuss the possibility that this fluorescence or perhaps superfluorescence arises by multiphoton absorption.Keywords
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