Pressure Sensitivity Analysis of Fiber Bragg Grating Sensors


  1. Mrad, N.
  2. Sridharan, V.
  3. Kazemi, A.
Corporate Authors
Defence Research and Development Canada, Centre for Security Science, Ottawa ON (CAN);Waterloo Univ, Waterloo ONT (CAN)
Recent development in fiber optic sensing technology has mainly focused on discrete sensing, particularly, sensing systems with potential multiplexing and multi-parameter capabilities. Bragg grating fiber optic sensors have emerged as the non-disputed champion for multiplexing and simultaneous multi-parameter sensing for emerging high value structural components, advanced processing and manufacturing capabilities and increased critical infrastructure resilience applications. Although the number of potential applications for this sensing technology is large and spans the domains of medicine, manufacturing, aerospace, and public safety; critical issues such as fatigue life, sensitivity, accuracy, embeddability, material/sensor interface integrity, and universal demodulation systems still need to be addressed. The purpose of this paper is to primarily evaluate Commercial-Of-The-Shelf (COTS) Fiber Bragg Grating (FBG) sensors’ sensitivity to pressure, often neglected in several applications. The COTS fiber sensitivity to pressure is further evaluated for two types of coatings (Polyimide and Acrylate), and different arrangements (arrayed and single).
fiber optic sensors;fiber Bragg Gratings;strain;pressure;pressure sensitivity
Report Number
DRDC-RDDC-2018-N018 — External Literature
Date of publication
01 Apr 2018
Number of Pages
Reprinted from
Photonics Applications for Aviation, Aerospace, Commercial, and Harsh Environments V, edited by Alex A. Kazemi, et al., Proc of SPIE Vol. 92
Electronic Document(PDF)

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