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Differential phase reconstruction of microcombs
Chalmers University of Technology, Sweden.
Chalmers University of Technology, Sweden.
Chalmers University of Technology, Sweden.
RISE Research Institutes of Sweden, Safety and Transport, Measurement Technology. Chalmers University of Technology, Sweden.ORCID iD: 0000-0001-8269-1033
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2022 (English)In: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 47, no 13, p. 3351-3354Article in journal (Refereed) Published
Abstract [en]

Measuring microcombs in amplitude and phase provides unique insight into the nonlinear cavity dynamics, but spectral phase measurements are experimentally challenging. Here, we report a linear heterodyne technique assisted by electro-optic downconversion that enables differential phase measurement of such spectra with unprecedented sensitivity (−50 dBm) and bandwidth coverage (>110 nm in the telecommunications range). We validate the technique with a series of measurements, including single-cavity and photonic molecule microcombs. © 2022 Optica Publishing Group

Place, publisher, year, edition, pages
Optica Publishing Group (formerly OSA) , 2022. Vol. 47, no 13, p. 3351-3354
Keywords [en]
Cavity dynamics, Differential phase, Differential phase measurements, Downconversion, Electro-optics, Heterodyne technique, Microcombs, Nonlinear cavities, Phase reconstruction, Spectral phasis, Phase measurement, article, bandwidth, telecommunication
National Category
Nano Technology
Identifiers
URN: urn:nbn:se:ri:diva-59831DOI: 10.1364/OL.460913Scopus ID: 2-s2.0-85133360113OAI: oai:DiVA.org:ri-59831DiVA, id: diva2:1685518
Available from: 2022-08-03 Created: 2022-08-03 Last updated: 2023-04-28Bibliographically approved

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Rebolledo-Salgado, Israel

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