We report on a new approach to integrated microresonator optical parametric oscillation that utilizes optical modes from multiple transverse spatial mode families. This 'hybrid mode' approach overcomes many challenges associated with other modal configurations, include improved robustness to dimensional variation and suppression of potential competing nonlinear optical processes.
Zhou, F., X. Lu, A. Rao, J. Stone, G. Moille, E. Perez, D. Westly, and K. Srinivasan, "Hybrid‐Mode‐Family Kerr Optical Parametric Oscillation for Robust Coherent Light Generation on Chip", Laser & Photonics Reviews, vol. 16, pp. 2100582, 2022.