Highly efficient higher-order modes filtering into aperiodic very large mode area fibers for single-mode propagation

We report here on the first experimental demonstration, to the best of our knowledge, of a new generation of very large mode area (VLMA) fibers intended to strengthen single-mode propagation. The originality of this work relies on an aperiodicity of the inner cladding microstructuration exacerbating...

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Bibliographic Details
Published in:Optics letters 2014-08, Vol.39 (15), p.4561-4564
Main Authors: Benoît, Aurélien, Dauliat, Romain, Jamier, Raphaël, Humbert, Georges, Grimm, Stephan, Schuster, Kay, Salin, François, Roy, Philippe
Format: Article
Language:English
Subjects:
Cladding
Confinement
Dispersions
Fibers
Filtering
Filtration
Optics
Physics
Rejection
Spectra
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Summary:We report here on the first experimental demonstration, to the best of our knowledge, of a new generation of very large mode area (VLMA) fibers intended to strengthen single-mode propagation. The originality of this work relies on an aperiodicity of the inner cladding microstructuration exacerbating the spatial rejection of higher-order-modes (HOMs) while preserving a significant confinement of the fundamental mode. The single-mode behavior was demonstrated using an optical low-coherence interferometry measurement based on the group-velocity dispersion. As suggested through a preliminary numerical approach, this outstanding characteristic/behavior is evidenced over a large spectral range spanning from 1 to 2 μm for a core diameter of 60 μm. Core scalability was also investigated.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.39.004561