Advancing Kerr Microresonator Optical Parametric Oscillators for Chip-based Laser Systems Across the Visible and Near-infrared

We report chip-integrated Kerr optical parametric oscillators with emission wavelengths between 590 nm and 1150 nm and conversion efficiencies reaching 15%. We further demonstrate photonic-crystal-mediated devices with >99.7% as-fabricated output wavelength accuracy.