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

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.

 Autoría: Roldan-Varona P., Rodriguez-Cobo L., Lopez-Higuera J.M.,

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

Editorial: Institute of Electrical and Electronics Engineers Inc.

 Fecha de publicación: 25/06/2021

Nº de páginas: 8

Tipo de publicación: Artículo de Revista

 DOI: 10.1109/JSTQE.2021.3092438

ISSN: 1077-260X,1558-4542

Proyecto español: PID2019-107270RB-C21

Url de la publicación: https://doi.org/10.1109/JSTQE.2021.3092438