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arXiv · 1810.08721

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

Ziyun Kong·Chengying Bao·Oscar E. Sandoval·Bohao Liu·Cong Wang·Jose A. Jaramillo-Villegas·Minghao Qi·Andrew M. Weiner
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Abstract

We experimentally demonstrate 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 a reference electro-optical 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. Our all-linear approach enables rapid measurements (3.2 $μ$s) with low input power (20 $μ$W).

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Ziyun Kong, Chengying Bao, Oscar E. Sandoval, Bohao Liu, Cong Wang, Jose A. Jaramillo-Villegas, Minghao Qi, Andrew M. Weiner. 2018-10-20. Characterizing pump line phase offset of a single-soliton Kerr comb by dual comb interferometry. https://doi.org/10.1364/ol.44.001460

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