OPTICAL FIBER ASSEMBLY FOR MITIGATING STIMULATED BRILLOUIN SCATTERING

An optical fiber assembly for mitigating stimulated Brillouin scattering (SBS) is disclosed that includes an optical fiber and a winding support configured to hold the fiber in a winding arrangement. The fiber includes a core and one or more claddings surrounding the core. The one or more claddings...

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Bibliographic Details
Main Author BOIVIN, MATHIEU
Format Patent
LanguageEnglish
French
Published 10.12.2023
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:An optical fiber assembly for mitigating stimulated Brillouin scattering (SBS) is disclosed that includes an optical fiber and a winding support configured to hold the fiber in a winding arrangement. The fiber includes a core and one or more claddings surrounding the core. The one or more claddings includes an inner doped region contiguous to the core and having a composition including a glass material doped with an acoustic-velocity-lowering and refractive-index-raising dopant and an acoustic-velocity-lowering and refractive-index-lowering dopant. The composition is selected to provide the fiber with an acoustic velocity profile in which the velocity within the inner doped region is equal to or less by at most 0.5% than that within the core. The acoustic velocity profile and the winding arrangement provide SBS mitigation by reducing a mode overlap between an optical mode guided in the core and acoustic modes including guided and leaky acoustic modes.
Bibliography:Application Number: CA20223162448