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Absorption bleaching by stimulated emission in erbium-doped silicon-rich silicon nitride waveguides
Debo Olaosebikan1, Selçuk Yerci, Alexander Gondarenko
1School of Electrical and Computer Engineering, Cornell University, Ithaca, New York 14853, USA.
Optics Letters
|January 7, 2011
Abstract:
Stimulated emission from sensitized erbium ions in silicon-rich silicon nitride is demonstrated by pump-probe measurements carried out in waveguides. A decrease in the photoinduced absorption of the probe at the wavelength of erbium emission is observed and is attributed to stimulated emission from erbium excited indirectly via localized states in the silicon nitride matrix.
