Slit Beam Shaping Technique for Femtosecond Laser Inscription of Symmetric Cladding Waveguides

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 manufactur...

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Bibliographic Details
Published in:IEEE journal of selected topics in quantum electronics 2021-11, Vol.27 (6), p.1-8
Main Authors: Roldan-Varona, Pablo, Rodriguez-Cobo, Luis, Lopez-Higuera, Jose Miguel
Format: Article
Language:English
Subjects:
Femtosecond laser
Femtosecond pulsed lasers
industry 4.0
Laser beam cladding
Laser beams
multicore fiber
optical fiber sensor
Optical fibers
Optical refraction
Optical sensors
Optical surface waves
Optical variables control
Optical waveguides
Photonics
Refractivity
Sensors
slit beam technique
Smart structures
waveguide
Waveguide lasers
Waveguides
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Summary: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.
ISSN:1077-260X
1558-4542
DOI:10.1109/JSTQE.2021.3092438