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Title: Characterization of a new polymer optical fiber with enhanced sensing capabilities using a Bragg grating
Authors: Leal-Junior, Arnaldo 
Theodosiou, Antreas 
Frizera-Neto, Anselmo 
José Pontes, Maria 
Shafir, Ehud 
Palchik, Oleg 
Tal, Nadav 
Zilberman, Shlomi 
Berkovic, Garry E. 
Antunes, Paulo 
André, Paulo 
Kalli, Kyriacos 
Marques, Carlos 
Keywords: Laser excitation;Optical fibers;Plastic optical fibers;Spinning (fibers)
Category: Electrical Engineering - Electronic Engineering - Information Engineering
Field: Engineering and Technology
Issue Date: 1-Oct-2018
Publisher: OSA - The Optical Society
Source: Optics Letters, 2018, vol. 43, no. 19, pp. 4799-4802
Journal: Optics letters 
Abstract: We present results for the mechanical characterization of a bisphenol-A acrylate-based polymer optical fiber (POF) manufactured using a novel light polymerization spinning (LPS) process. The particular manufacturing process allows the development of POFs having unique mechanical characteristics, which result from an exceptionally low Young's modulus. The lower Young's modulus enables optical sensors for measuring stress or pressure with improved sensitivity and potentially a higher tunable mechanical range than conventional POFs. Moreover, properties such as the storage modulus variations with respect to the temperature and humidity were studied. Fiber Bragg gratings (FBGs), were inscribed in the POF using the plane-by-plane femtosecond laser, direct-write method for selective FBG mode excitation, and were characterized for changes to temperature, pressure, and relative humidity. The response of FBGs in this LPS-POF for all the three aforementioned measurands was several times higher than that measured for conventional POFs.
ISSN: 0146-9592
DOI: 10.1364/OL.43.004799
Rights: © 2018 Optical Society of America
Type: Article
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