Open Access
Original Article

Numerical Investigation of Fiber Bragg Grating Sensors for Temperature Measurement

Radius: Journal of Science and Technology

View PDF

Volume 3, Issue 2, Article Number: 262006 (2026)

Coverpage Radius Journal

👁 Views: 18 | ⬇ Downloads: 2

Home >> Radius >> Volume 3, Issue 2

Shashi Kant Vij1,* | Alok Kumar Singh1 ORCID logo

1School of Engineering and Technology, Nirwan University, Jaipur – 303305, Rajasthan (India)

*Corresponding Author: shashikantvij1975@gmail.com

Received: 11 September 2026 | Revised: 01 October 2026

Accepted: 08 October 2026 | Published Online: 30 October 2026

DOI: https://doi.org/10.5281/zenodo.23647790

© 2026 The Authors, under a Creative Commons license, Published by Scholarly Publication

Abstract

The present study deals with the temperature sensing capabilities of single mode silica optical fibers by Fiber Bragg Grating (FBG) approach via theoretical analysis and computer simulation in MATLAB. The underlying principle is that due to temperature variations, the grating period and the effective refractive index change causing a wavelength shift called Bragg wavelength shift. In the process, the connection between temperature change and wavelength shifts due to both thermal expansion and thermo-optical effect is analyzed. The results show the capabilities of FBG sensors to be applied for accurate temperature measurements over wide range of values. Due to their resistance to electromagnetic interference, remote sensing and multipoint measurement capability, the sensors can be used in industries, power transmission systems and structural health monitoring. At the same time, there are several restrictions connected with the high cost of sensors, difficulties in installation and cross-sensitivity to temperature and strain.

Keywords

Temperature measurement, Fiber Bragg Grating Technique, Bragg wavelength shift, Thermo-optic effect, Optical fibre sensor

References

  1. Yassin, M. H., Farhat, M. H., Soleimanpour, R., & Nahas, M. (2024). Fiber Bragg grating (FBG)-based sensors: a review of technology and recent applications in structural health monitoring (SHM) of civil engineering structures. Discover Civil Engineering, 1, 151.

[View Article]        [Google Scholar]

  1. Kumar, J., Kumar, S., Mahakud, R., Kumar, K. V. A. N. P. S., Sindal, B., Yadav, D. P., Agrawal, P. K., Saxena, M. K. & Prakash, O. (2025). Studies and development of FBG based multi-point temperature sensor for vacuum chambers of synchrotron radiation source Indus-2. Results in Optics, 19, 100805.

[View Article]        [Google Scholar]

  1. You, J., Shan, M., Sugita, Y., Cheng, Z., Abe, I., & Iiyama, K. (2025). Multipoint FBG Sensing System for Long Range and Long Term Structural Health Monitoring by Incoherent FMCW Optical Ranging System. IEEE Sensors Journal, 25, 21608-21616.

[View Article]        [Google Scholar]

  1. Dhanalakshmi, S., Nandini, P., Rakshit, S., Rawat, P., Narayanamoorthi, R., Kumar, R., & Senthil, R. (2022). Fiber Bragg grating sensor-based temperature monitoring of solar photovoltaic panels using machine learning algorithms. Optical fiber technology, 69, 102831.

[View Article]        [Google Scholar]

  1. Sengupta, D., Shankar, M. S., Reddy, P. S., Prasad, R. S., Narayana, K. S., & Kishore, P. (2011, November). An improved low temperature sensing using PMMA coated FBG. In Asia Communications and Photonics Conference and Exhibition (p. 831103). Optica Publishing Group.

[View Chapter]        [Google Scholar]

  1. Yu, K., Chen, W., Deng, D., Wu, Q., & Hao, J. (2024). Advancements in battery monitoring: Harnessing fiber grating sensors for enhanced performance and reliability. Sensors, 24, 2057.

[View Article]        [Google Scholar]

  1. Zhao, X., Wei, C., Zeng, L., Sun, L., Li, Z., Chen, H., Liu, G., Qiao, Z., Qu Y., Xu D., Li, L., & Li, L. (2024). Research progress in fiber Bragg grating-based ocean temperature and depth sensors. Sensors, 25, 183.

[View Article]        [Google Scholar]

  1. Zhao, J. (2024). Compact Real-Time Interrogation System for Distributed and Multiplexed Fiber Bragg Grating (FBG) Sensors Demodulation Applied on High Temperature and Vibration Measurements (Doctoral dissertation, University of Pittsburgh).

[Google Scholar]

  1. Yang, N. J., Li, T., Xiao, X., Tse, Z. T. H., Lim, C. M., & Ren, H. (2020). Chapter 14 – Force sensing in compact concentric tube mechanism with optical fibers. In Flexible Robotics in Medicine: A Design Journey of Motion Generation Mechanisms and Biorobotic System Development, 327-347.

[View Chapter]        [Google Scholar]

  1. Wang, F., Liu, S., Du, H., Liu, Z., Hong, X., Qiu, J., Deng, Q., Huang, W., & Tong, W. (2026). Enhanced Temperature Sensitivity of Fiber Bragg Grating Sensors Using PTFE Sleeve Encapsulation with Adhesive-Assisted Packaging. Photonics, 13, 510.

[View Article]        [Google Scholar]

  1. Chen, S., Shen, Y., Li, D., Tian, G., Li, Y., Ma, X., & Shuai, S. (2025). Advances in internal temperature measurement and estimation for lithium-ion batteries. Journal of Energy Storage, 140, 118950.

[View Article]        [Google Scholar]

  1. Mathew, J. (2024). A method of attaining optical fibre pre-compression for strain and temperature monitoring inside metal at extremely high temperatures. Sensors and Actuators A: Physical, 379, 116000.

[View Article]        [Google Scholar]

  1. Yi, L., Zude, Z., Erlong, Z., Jun, Z., Yuegang, T., & Mingyao, L. (2014). Measurement error of surface-mounted fiber Bragg grating temperature sensor. Review of Scientific Instruments, 85, 064905.

[View Article]        [Google Scholar]

  1. Byeong-Yeon, K. I. M., Jewhan, L. E. E., Youngil, C. H. O., Jaehyuk, E. O. H., & Hyungmo, K. I. M. (2022). Performance test and uncertainty analysis of the FBG-based pressure transmitter for liquid metal system. Nuclear Engineering and Technology, 54, 4412-4421.

[View Article]        [Google Scholar]

  1. Gupta, S., & Vij, S. K. (2018, March). Transmission Line Sag Calculation with Ampacities of Different Conductors. In International Conference on Application of Computing and Communication Technologies (pp. 213-224). Singapore: Springer Singapore.

[View Chapter]        [Google Scholar]

  1. Cai, Y., Zhang, B., Wang, J., Teng, Y., Liu, R., & Yu, C. (2023). Research on a bimetallic-sensitized FBG temperature sensor. Review of Scientific Instruments, 94, 035010.

[View Article]        [Google Scholar]

  1. Huang, Q., Tang, Y., Zhang, Y., He, H., Zhu, L., Lou, X., Song, Y., He, J., Yi, H., & Tan, D. (2026). Strain and temperature cross-sensitivity decoupling method via a single glass fiber-reinforced polymer encapsulated chirped fiber Bragg grating. Optics Express, 34, 2901-2914.

[View Article]        [Google Scholar]

Cite This Article

S. K. Vij1 and A. K. Singh, “Numerical Investigation of Fiber Bragg Grating Sensors for Temperature Measurement,” Radius: Journal of Science and Technology 3(2) (2026) 262006. https://doi.org/10.5281/zenodo.23647790

Rights & Permission

This is an open access article published under the Creative Commons Attribution (CC BY) International License, which allows unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. No permission is needed to reuse this content under the terms of the license.
For uses not covered above, please contact the Scholarly Publication Rights Department.