Dual-comb spectroscopy with a phase-modulated probe comb for sub-MHz spectral sampling

Authors: Bourbeau Hébert, NicolasMichaud-Belleau, VincentMagnan-Saucier, SébastienDeschênes, Jean-DanielGenest, Jérôme
Abstract: We present a straightforward and efficient method to reduce the mode spacing of a frequency comb based on binary pseudo-random phase modulation of its pulse train. As a proof of concept, we use such a densified comb to perform dual-comb spectroscopy of a long-delay Mach–Zehnder interferometer and a high-quality-factor microresonator with sub-MHz spectral sampling. Since this approach is based on binary phase modulation, it combines all the advantages of other densification techniques: simplicity, single-step implementation, and conservation of the initial comb’s power.
Document Type: Article de recherche
Issue Date: 15 May 2016
Open Access Date: 15 May 2017
Document version: AM
Permalink: http://hdl.handle.net/20.500.11794/8788
This document was published in: Optics letters, Vol. 41 (10), 2282-2285 (2016)
Optical Society
Alternative version: 10.1364/OL.41.002282
Collection:Articles publiés dans des revues avec comité de lecture

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