We present an angled multimode interferometer (AMMI) wavelength division (de)multiplexer on a 220 nm silicon-on-insulator platform, which is designed and operated for C-band wavelengths. The length of the AMMI is 855 µm, and can provide a channel spacing of 15 nm and a crosstalk suppression of 7 dB. Through inverse design, the length of the AMMI is reduced to 300 µm with a channel spacing at 8 nm; also to be operated at C band wavelengths. In addition, using shape optimization on a 2x2 multimode interferometer, the length of the device is reduced from 158 µm to 40 µm with improved performance in terms of transmission variation across the C-band.
In this talk we present on recent advancements in hybrid-glass waveguides on silicon photonic platforms. We describe novel monolithic hybrid integration approaches and waveguide designs for functional glass claddings on silicon-on-insulator (SOI). We describe our results on low-loss hybrid tellurite-silicon waveguides, high-Q resonators, and amplifiers and lasers and our recent efforts to optimize their performance and utility in silicon photonic systems. Such devices are promising for new functionalities in sensing, metrology, computing, and communications applications.
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