Correcting spectral baseline fluctuations in dual-comb interferometry

Autor:	Khaoula Fdil, Alex Tourigny-Plante, Mathieu Walsh, Jérôme Genest, Philippe Guay
Rok vydání:	2022
Předmět:	Physics Interferometry Optics business.industry DUAL (cognitive architecture) business Baseline (configuration management) Atomic and Molecular Physics and Optics
Zdroj:	Optics Letters. 47:206
ISSN:	1539-4794 0146-9592
Popis:	A method to measure and correct for spectral baseline fluctuations in dual-comb interferometry is presented. Fluctuations can be measured from the amplitude of beat notes between combs and a continuous wave laser or from a separate measurement of the combs’ repetition rates, filtered around the spectral region of interest. Amplitude-dependent spectral variations are characterized using low-resolution Fourier transforms around the centerburst of several interferograms, and a nonstationary filter is applied to properly account for the combs’ variations during the measurement. This allows removal of this source of statistical, as well as systematic, errors.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a699c57fcd4d1e44d633a55c10aae545 https://doi.org/10.1364/ol.442748 Zobrazit plný text záznamu