Recent Advances in Silicon Microphotonic Devices
Various microphotonic silicon-on-insulator (SOI) waveguide devices developed at the National Research Council of Canada are reviewed. These include a high-resolution arrayed waveguide grating (AWG) spectrometer, a Fourier-transform interleaved AWG spectrometer with a large light gathering capability, and an AWG with the dispersion enhancement using the photonic bandgap effect. Sub-wavelength grating (SWG) structures are introduced, including input couplers and antireflective waveguide facets.
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