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Article Dans Une Revue Nature Communications Année : 2023

All-fiber frequency agile triple-frequency comb light source

Rosa Santagata

Résumé

Abstract Tricomb spectroscopy unveils a new dimension to standard linear and nonlinear spectroscopic analysis, offering the possibility to reveal the almost real-time evolution of complex systems with unprecedented accuracy. Current triple comb configurations are based on the use of mode-locked lasers, which impose constraints on the comb parameters, and require complex electronic synchronization, thus limiting potential applications. In this paper, we present the experimental demonstration of a new type of all-fiber, self-phase-locked, frequency-agile tri-comb light source. It is based on the nonlinear spectral broadening of three electro-optic modulator-based frequency combs in a three-core fiber. The exploitation of spatial multiplexing of light in optical fibers offers new possibilities to generate broadband-frequency combs that are highly coherent with each other. After characterizing the stability of the source and performing several dual-comb test measurements, we revealed the high mutual coherence between the three combs through the demonstration of a 2-D pump-probe four-wave mixing spectroscopy experiment.
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Dates et versions

hal-04411319 , version 1 (16-03-2024)

Identifiants

Citer

Eve-Line Bancel, Etienne Genier, Rosa Santagata, Matteo Conforti, Alexandre Kudlinski, et al.. All-fiber frequency agile triple-frequency comb light source. Nature Communications, 2023, 14 (1), pp.7953. ⟨10.1038/s41467-023-43734-w⟩. ⟨hal-04411319⟩
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