Curvature sensor based on structure of Mach-Zehnder interferometer coated with aluminum-doped zinc oxide

Mario A. Rico-Mendez; Romeo Selvas; Sheila Bazavilvazo; Leonardo Arévalo; Manuel García; Ricardo Chapa; Norma P. Puente-Ramirez; Juan M. Sierra-Hernandez; Eloisa Gallegos-Arellano

doi:10.1117/12.3027150

30 September 2024 Curvature sensor based on structure of Mach-Zehnder interferometer coated with aluminum-doped zinc oxide

Mario A. Rico-Mendez, Romeo Selvas, Sheila Bazavilvazo, Leonardo Arévalo, Manuel García, Ricardo Chapa, Norma P. Puente-Ramirez, Juan M. Sierra-Hernandez, Eloisa Gallegos-Arellano

Author Affiliations +

Proceedings Volume 13136, Optics and Photonics for Information Processing XVIII; 131360R (2024) https://doi.org/10.1117/12.3027150
Event: Optical Engineering + Applications, 2024, San Diego, California, United States

Conference Poster

Abstract

This work presents a novel fiber optic Mach-Zehnder interferometer (MZI) sensor that can measure curvature due to its structure. This structure employs a 2-section MZI filter constructed from SMF-28 fiber using the core offset technique. The source in the 1480-1600 nm range shows intermodal energy interference between the core and the cladding and exhibits six spacing notches for sensing applications. The sensibility obtained was of 0.00018 nm/uW when curvature is applied. However, by including a thin film based on Zinc Oxide (ZnO) and another with Aluminum-doped zinc oxide (AZO) in the sensing arrangement, an increase in the sensitivity was detected with a value of 0.00015 nm/uW and 0.00016 nm/uW, respectively. This sensor can be used for applications in various fields, such as environmental monitoring, engineering, and process control.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Mario A. Rico-Mendez, Romeo Selvas, Sheila Bazavilvazo, Leonardo Arévalo, Manuel García, Ricardo Chapa, Norma P. Puente-Ramirez, Juan M. Sierra-Hernandez, and Eloisa Gallegos-Arellano "Curvature sensor based on structure of Mach-Zehnder interferometer coated with aluminum-doped zinc oxide", Proc. SPIE 13136, Optics and Photonics for Information Processing XVIII, 131360R (30 September 2024); https://doi.org/10.1117/12.3027150

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