Optical Fiber Based Temperature Sensors: A Review
Author:
Gangwar Rahul Kumar1ORCID, Kumari Sneha2ORCID, Pathak Akhilesh Kumar3ORCID, Gutlapalli Sai Dheeraj4, Meena Mahesh Chand1
Affiliation:
1. Department of Physics & Electronics, Rajdhani College, University of Delhi, New Delhi 110015, India 2. Centre for Nanoscience and Engineering (CeNSE), Indian Institute of Science, Bangalore 560012, India 3. Center for Smart Structures and Materials, Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, USA 4. Department of Internal Medicine, Richmond University Medical Center, Staten Island, NY 10310, USA
Abstract
The current generation is witnessing a huge interest in optical waveguides due to their salient features: they are of low cost, immune to electromagnetic interference, easy to multiplex, have a compact size, etc. These features of optical fibers make them a useful tool for various sensing applications including in medicine, automotives, biotechnology, food quality control, aerospace, physical and chemical monitoring. Among all the reported applications, optical waveguides have been widely exploited to measure the physical and chemical variations in the surrounding environment. Optical fiber-based temperature sensors have played a crucial role in this decade to detect high fever and tackle COVID-19-like pandemics. Recognizing the major developments in the field of optical fibers, this article provides recent progress in temperature sensors utilizing several sensing configurations including conventional fiber, photonic crystal fiber, and Bragg grating fibers. Additionally, this article also highlights the advantages, limitations, and future possibilities in this area.
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