Efficient single-mode operation in a 10 dB/m absorption very-large-mode-area ytterbium-doped optical fiber via curvature-induced mode filtering - Archive ouverte HAL
Article Dans Une Revue Optics Communications Année : 2025

Efficient single-mode operation in a 10 dB/m absorption very-large-mode-area ytterbium-doped optical fiber via curvature-induced mode filtering

Résumé

In this paper we report our findings on the design, manufacturing and testing of low numerical aperture active step-index optical fibers with very large mode area, operating in a truly single-mode regime. Our approach to efficiently filter higher-order modes in the core relies on applying curvature in a specific direction at a given diameter on a specially designed fiber containing boron-doped silica rods on both sides of the core. The fabricated ytterbium-doped fibers exhibit a mode field diameter of 32 µm , a cladding pump absorption of 10 dB/m and were designed for use in a compact monolithic configuration due to its all-solid nature and its 14 cm targeted bend diameter.
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Dates et versions

hal-04722928 , version 1 (06-10-2024)

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Tristan Guezennec, Laurent Provino, David Landais, Achille Monteville, Olivier Le Goffic, et al.. Efficient single-mode operation in a 10 dB/m absorption very-large-mode-area ytterbium-doped optical fiber via curvature-induced mode filtering. Optics Communications, 2025, 574, pp.131150. ⟨10.1016/j.optcom.2024.131150⟩. ⟨hal-04722928⟩
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