Direct-laser-writing of arbitrary long waveguides in optical fibers

Matthieu Bellec; Léo Colliard; Guillaume Bilodeau; Tommy Boilard; Réal Vallée; Martin Bernier

doi:10.1117/12.2621654

30 May 2022 Direct-laser-writing of arbitrary long waveguides in optical fibers

Matthieu Bellec, Léo Colliard, Guillaume Bilodeau, Tommy Boilard, Réal Vallée, Martin Bernier

Proceedings Volume PC12142, Fiber Lasers and Glass Photonics: Materials through Applications III; PC121420G (2022) https://doi.org/10.1117/12.2621654
Event: SPIE Photonics Europe, 2022, Strasbourg, France

Abstract

We propose a novel femtosecond laser writing approach allowing the fabrication of arbitrary long optical waveguides in coreless optical fibers, directly through the coating. In a silica fiber, we demonstrate a 4m-long single-mode waveguide operating at 1 µm. The refractive index distribution and the spatial mode are characterized. Using a cutback method, the propagation losses of the laser-inscribed waveguides are properly measured. This approach paves the way toward the fabrication of complex arrangement of cores in various optical fibers.

Conference Presentation

Citation Download Citation

Matthieu Bellec, Léo Colliard, Guillaume Bilodeau, Tommy Boilard, Réal Vallée, and Martin Bernier "Direct-laser-writing of arbitrary long waveguides in optical fibers", Proc. SPIE PC12142, Fiber Lasers and Glass Photonics: Materials through Applications III, PC121420G (30 May 2022); https://doi.org/10.1117/12.2621654

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