Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/82170
PIRA download icon_1.1View/Download Full Text
Title: Impact of high UV fluences on the mechanical and sensing properties of polymer optical fibers for high strain measurements
Authors: Bonefacino, J 
Cheng, X 
Pun, CFJ 
Boles, ST 
Tam, HY 
Issue Date: 2020
Source: Optics express, 2020, v. 28, no. 2, p. 1158-1167
Abstract: PMMA-based fibers are widely studied for strain measurements and show repeatable results for Fiber Bragg Gratings (FBGs) inscribed using 325 nm laser and 248 nm laser. However, there is no available material mechanical behavior characterization of the UV source impact on the fiber properties. In this manuscript, fibers are irradiated with high fluence of 325 nm and 248 nm lasers and the fibers properties are investigated using dynamic mechanical analysis and tensile strain for potential use of these fibers past the yield point. It is demonstrated that the UV sources shifted the ultimate tensile strength and changed the strain hardening behavior. Tensile strain measurements show excellent repeatability for gratings inscribed with these two sources with similar sensitivity of 1.305 nm/m epsilon for FBG inscribe with 325 nm laser, and 1.345 nm/m epsilon for grating written with 248 nm laser in the range 0 to 1.5% elongation. Furthermore, tests far beyond the yield point (up to 2.8% elongation) show that grating inscribed with lower UV wavelength exhibit hysteresis. Finally, we demonstrate that 248 nm laser fluence shall be chosen carefully whereas even high 325 nm laser fluence do not critically impact the sensor properties.
Publisher: Optical Society of America
Journal: Optics express 
EISSN: 1094-4087
DOI: 10.1364/OE.378634
Rights: © 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement (https://www.osapublishing.org/library/license_v1.cfm#VOR-OA)
© 2020 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.
Journal © 2020
The following publication Julien Bonefacino, Xin Cheng, Chi-Fung Jeff Pun, Steven T. Boles, and Hwa-Yaw Tam, "Impact of high UV fluences on the mechanical and sensing properties of polymer optical fibers for high strain measurements," Opt. Express 28, 1158-1167 (2020) is available at https://dx.doi.org/10.1364/OE.378634
Appears in Collections:Journal/Magazine Article

Files in This Item:
File Description SizeFormat 
Bonefacino_UV_Fluences_Mechanical.pdf2.38 MBAdobe PDFView/Open
Open Access Information
Status open access
File Version Version of Record
Access
View full-text via PolyU eLinks SFX Query
Show full item record

Page views

34
Citations as of May 22, 2022

Downloads

45
Citations as of May 22, 2022

SCOPUSTM   
Citations

4
Citations as of May 12, 2022

WEB OF SCIENCETM
Citations

4
Citations as of May 19, 2022

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.