Characterizing pump line phase offset of a single-soliton Kerr comb by dual comb interferometry

作者：Ziyun Kong, Chengying Bao, Oscar E. Sandoval, Bohao Liu, Cong Wang, José A. Jaramillo-Villegas, Minghao Qi, Andrew M. Weiner · 发表于：Optics Letters · 年份：2019 · DOI：10.1364/ol.44.001460 · 被引用次数：5 · 研究领域：Advanced Fiber Laser Technologies、Photonic Crystal and Fiber Optics、Laser-Matter Interactions and Applications

We report phase retrieval of a single-soliton Kerr comb using electric field cross-correlation implemented via dual-comb interferometry. The phase profile of the Kerr comb is acquired through the heterodyne beat between the Kerr comb and an electro-optic comb with a pre-characterized phase profile. The soliton Kerr comb has a nearly flat phase profile, and the pump line is observed to show a phase offset which depends on the pumping parameters. The experimental results are in agreement with numerical simulations.