title: Stabilized chip-scale Kerr frequency comb via a high-Q reference photonic microresonator.
abstract: We stabilize a chip-scale Si3N4phase-locked Kerr frequency comb via locking the pump laser to an independent stable high-Q reference microresonator and locking the comb spacing to an external microwave oscillator. In this comb, the pump laser shift induces negligible impact on the comb spacing change. This scheme is a step toward miniaturization of the stabilized Kerr comb system as the microresonator reference can potentially be integrated on-chip. Fractional instability of the optical harmonics of the stabilized comb is limited by the microwave oscillator used for a comb spacing lock below 1 s averaging time and coincides with the pump laser drift in the long term.
authors: Jinkang
authors: J
authors: Lim
authors: Shu-Wei
authors: SW
authors: Huang
authors: Abhinav K
authors: AK
authors: Vinod
authors: Parastou
authors: P
authors: Mortazavian
authors: Mingbin
authors: M
authors: Yu
authors: Dim-Lee
authors: DL
authors: Kwong
authors: Anatoliy A
authors: AA
authors: Savchenkov
authors: Andrey B
authors: AB
authors: Matsko
authors: Lute
authors: L
authors: Maleki
authors: Chee Wei
authors: CW
authors: Wong