Abstract
We propose a microring resonator with Bragg reflection waveguide (BRW) capable of simultaneously establishing the quasi-phase-matching, Bragg, and resonance conditions to achieve optical second-harmonic generation (SHG). Using numerical simulations, we suggest a comprehensive design procedure for a monolithic AlGaAs BRW microring. Due to the sensitive nature of BRW-based devices to material and fabrication tolerances, precise thermo-optic tuning method is proposed. It is shown that the designed structure can be thermally tuned in such a way that by only 6 °C, it can be switched to adjacent working wavelengths. Furthermore, being able to design microrings with different radii on the same wafer for SHG investigation is another advantage of our proposed device.
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