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(a) The cross-section view HRTEM image, (b) the size distribution of Si-QDs, (c) the reflectance spectrum, and (d) the annealing temperature-dependent refractive indices of film.
Upper left: the geometry of waveguide. Upper right: the simulated optical mode field. Lower: the ASE spectra of waveguide with different pumping length. Inset: the normalized ASE spectra revealing a blueshifted PL wavelength.
The ASE intensity at wavelength of 805 nm vs the pumping length. Inset: The photograph of the /quartz strip-loaded waveguide.
Left: Gain vs power of laser signal. Upper right: small-signal amplification response on oscilloscope. Lower right: power spectra of laser signal.
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