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تسجيل مستخدم جديدCharacterizing pump line phase offset of a single-soliton Kerr comb by dual comb interferometry
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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 $mu$s) with low input power (20 $mu$W).
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Philippe Guay
, Alex Tourigny-Plante
, Vincent Michaud-Belleau andn Nicolas Bourbeau Hebert
2021
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S, causes optical aliasing of the nonlinear spectral artifacts. Measured linear and nonlinear interferograms are presented to validate the model. Absorption lines of H$^{13}$CN are provided to understand the impact of nonlinearity on spectroscopic measurements.
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