Suppression of avoided resonance crossing in microresonators

Kerr frequency comb generation in microresonators is enabled by notable developments fabrication technology and novel nonlinear material platforms. However, even a low loss highly microresonator, the avoided resonance crossing may hamper reliable generation. We present method to suppress induced polarization mode coupling. Our approach employs filter waveguide coupled microring resonator for selective filtering of T mathvariant="normal">M 00 while keeping operational mathvariant="normal">E with loss. experimentally demonstrate an avoided-crossing-suppressed microresonator AlGaAs-on-insulator platform.