Abstract
ABSTRACTSi-rich SiOX strip-loaded waveguide with silicon (Si) nanocrystals contributed amplified spontaneous emission at 750-850 nm with associated spectral linewidth of 140 nm is characterized. By using variable stripe length (VSL) method we demonstrate the optical gain and loss coefficients of 65 and 5 cm−1, respectively, for such a waveguide amplifier. The optical gain and loss coefficients are observed by fitting the one dimensional amplifier equation. The small-signal power gain of 18.4 dB at wavelength of 805 nm under He-Cd laser pumping of 40 mW at 325 nm is obtained from the SiO2/SiOX/SiO2 waveguide amplifier with length of 1 cm.
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