Photonic Flywheel in a Monolithic Fiber Resonator
Kunpeng Jia, Xiaohan Wang, Dohyeon Kwon, Jiarong Wang, Eugene Tsao, Huaying Liu, Xin Ni, Jian Guo, Mufan Yang, Xiaoshun Jiang, Jungwon Kim, Shining Zhu, Zhenda Xie, Shu‐Wei Huang
Abstract
We demonstrate the first compact photonic flywheel with sub-fs time jitter (averaging times up to 10 μs) 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 generation. Controllable interaction between stimulated Brillouin lasing and Kerr nonlinearity enhances the DKS coherence and mitigates 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.