Photonic flywheel in a monolithic fiber resonator

TL;DR

This paper introduces a compact photonic flywheel using a monolithic fiber resonator that achieves quantum-limited performance with ultra-low jitter and phase noise, advancing precision metrology.

Contribution

It presents the first implementation of a photonic flywheel with sub-fs jitter at the quantum noise limit in a monolithic fiber resonator, utilizing a novel two-step pumping scheme for DKS generation.

Findings

Achieved 22-Hz intrinsic comb linewidth.

Attained phase noise of -180 dBc/Hz at 945 MHz.

Demonstrated quantum-limited performance with sub-fs jitter.

Abstract

We demonstrate the first compact photonic flywheel with sub-fs time jitter (averaging times up to 10 {\mu}s) at the quantum-noise limit of a monolithic fiber resonator. Such quantum-limited performance is accessed through novel two-step pumping scheme for dissipative Kerr soliton (DKS) generation. Controllable interaction between stimulated Brillouin lasing and Kerr nonlinearity enhances the DKS coherence and mitigate the thermal instability challenge, achieving a remarkable 22-Hz intrinsic comb linewidth and an unprecedented phase noise of -180 dBc/Hz at 945 MHz carrier at free running. The scheme can be generalized to various device platforms for field-deployable precision metrology.