Enhancing Temperature Sensitivity Using Cyclic Polybutylene Terephthalate- (c-PBT-) Coated Fiber Bragg Grating
Document Type
Article
Publication Date
1-1-2018
Abstract
A polybutylene terephthalate (c-PBT) coating for enhancing the temperature sensitivity of a fiber Bragg grating- (FBG-) based sensor is proposed and demonstrated. The coating is seen to increase the sensitivity of the proposed sensor by a factor of approximately 11 times as compared to a bare FBG, giving a Bragg wavelength shift of 0.11 nm/°C with an operating temperature ranging from 30°C to 87°C. The proposed sensor is also easy to fabricate as compared to other similarly coated FBG sensors, giving it a significant advantage for field applications with the added advantage of being easily reformed to fit various housings, making it highly desirable for multiple real-world applications.
Keywords
Bragg wavelength shift, FBG sensor, Field application, Operating temperature, Polybutylene terephthalates, Real-world, Temperature sensitivity
Divisions
photonics
Funders
Grant RU 001-2017 from the University of Malaya,HiCoE Funding,Grant GA 010-ULUNG (2014) from the Ministry of Higher Education, Malaysia
Publication Title
Journal of Sensors
Volume
2018
Publisher
Hindawi Publishing Corporation