Transition excitation at 0.9 μm by multiphoton pumping of Nd 3+ -doped fibers
作者： B. Poumellec , H. Fevrier , J.-M. Gabriagues
DOI: 10.1364/OL.15.001008
关键词: Spontaneous emission 、 Stimulated emission 、 Materials science 、 Optical pumping 、 Optics 、 Laser pumping 、 Second-harmonic generation 、 Optical fiber 、 Absorption spectroscopy 、 Laser
摘要: 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 power of approximately 1.8 GW/m2. observed emission rate has reached few percent. We discuss the possibility that this fluorescence or perhaps superfluorescence arises by multiphoton absorption.
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