This paper demonstrates optical gain at 1.5 µm in Si-nanocrystal-sensitized, Er-doped silica waveguide using a commercial, low-cost 470 nm LED in top-pumping configuration. Experimental evidence of full inversion with maximum possible gain of 3 dB/cm is presented. Possible application of Si-nanocrystal-sensitized, Er-doped silica for silicon-based microphotonics is also presented.
© 2005 IEEE
Jinku Lee, Jung H. Shin, and Namkyoo Park, "Optical Gain at 1.5 µm in Nanocrystal Si-Sensitized Er-Doped Silica Waveguide Using Top-Pumping 470 nm LEDs," J. Lightwave Technol. 23, 19- (2005)