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Carbon conductive coated fiber Bragg grating sensor for voltage detection

M. Z. ZULKIFLI1,* , M. K. MOHD YUSOF1, M. R. SHAHRIL1, S. N. F. AZAHAN1, K. S. LIM2, H. AHMAD2, K. THAMBIRATNAM1

Affiliation

  1. IUM Photonics and Quantum Research Centre (iPQC), Department of Physics, Kulliyyah of Science, International Islamic University Malaysia, Bandar Indera Mahkota, 25200 Kuantan, Pahang, Malaysia
  2. Photonics Research Centre, University of Malaya, Lembah Pantai, 50603 Kuala Lumpur, Malaysia

Abstract

A novel temperature stable fiber Bragg grating (FBG) electrical sensor is proposed and demonstrated. The FBG is coated with conductive carbon paint of approximately 3 mm in thickness, with electrode clips were attached approximately 8.0 mm apart within the conductive paint region. The sensor was exposed to increasing and decreasing voltages between 0 V and 4.0 V, and was determined to have sensitivity of 1.8196 nm/V for increasing voltages and a sensitivity of 1.8455 nm/V for decreasing voltages. The response time for increasing voltages is at an average of 150.9s while for decreasing voltages is at an average of 204.7s..

Keywords

Fiber Bragg grating, Tuneable laser, Temperature control, Fiber optic sensor.

Submitted at: Jan. 16, 2024
Accepted at: June 3, 2024

Citation

M. Z. ZULKIFLI, M. K. MOHD YUSOF, M. R. SHAHRIL, S. N. F. AZAHAN, K. S. LIM, H. AHMAD, K. THAMBIRATNAM, Carbon conductive coated fiber Bragg grating sensor for voltage detection, Journal of Optoelectronics and Advanced Materials Vol. 26, Iss. 5-6, pp. 206-212 (2024)