Hybrid-Integrated Dual-Wavelength Laser Frequency Locked to an Integrated Coil-Resonator for Optical Fiber Sensing

We demonstrate dual-frequency stabilization of a hybrid-integrated multi-channel laser to an integrated high Q-factor silicon nitride (SiN) coil resonator with more than 40 dB frequency noise suppression. The frequency locked channels are utilized for a proof-of-concept fiber sensing experiment.