Slit beam shaping technique for femtosecond laser inscription of symmetric cladding waveguides

Roldán Varona, Pablo; Rodríguez Cobo, Luis; López Higuera, José Miguel

doi:10.1109/JSTQE.2021.3092438

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SlitBeamShaping.pdf (54.55Mb)

Identificadores

URI: http://hdl.handle.net/10902/22707

DOI: 10.1109/JSTQE.2021.3092438

ISSN: 1077-260X

ISSN: 1558-4542

Fecha

2021-06-25

Derechos

© 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Publicado en

IEEE Journal of Selected Topics in Quantum Electronics, 2021, 27(6), 4400208

Editorial

Institute of Electrical and Electronics Engineers Inc.

Enlace a la publicación

https://doi.org/10.1109/JSTQE.2021.3092438

Palabras clave

Femtosecond laser

Waveguide

Optical fiber sensor

Slit beam technique

Multicore fiber

Industry 4.0

Resumen/Abstract

In recent years, the Industry 4.0 paradigm has gained special relevance, focused on the integration of smart structures to increase the efficiency of processes. Photonics, with laser advanced manufacture and light-based sensors, can offer great possibilities in this field. Within advanced manufacturing, femtosecond lasers allow inscribing different optical structures. Waveguides are one of the most widely used structures in photonic sensors. This work proposes the design, simulation and manufacture of symmetric cladding waveguides in optical fibers using the slit beam shaping technique. Cladding waveguides characterized by their low losses (0.21 dB/cm), quasi?step-index refractive index profile, and circular cross-section are used to couple evanescent light from the core of a single-mode fiber to each of the four cores of a multicore fiber.