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Absorption bleaching by stimulated emission in erbium-doped silicon-rich silicon nitride waveguides

Olaosebikan, Debo
Yerci, Selcuk
Yerci, Selçuk
Preston, Kyle
Li, Rui
Dal Negro, Luca
Lipson, Michal
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. (C) 2010 Optical Society of America