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Interferometric noise suppression in fiber Bragg grating sensors by using wavelet filter

C.C. CHAN1, N. NI1,* , J. SUN1, Y.C. CHU2, Y. TANG2, C. L. POH1

Affiliation

  1. N1.3-B3-14, Division of Bioengineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Avenue, Singapore 637457
  2. School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, 639798

Abstract

Wavelet digital filter is designed and demonstrated to reduce the wavelength detection error caused by interferometric noise in a fiber Bragg grating (FBG) strain sensor. Simulation and experimental results show that the wavelet filtering technique is a promising approach to enhance the detection accuracy of the FBG strain sensor..

Keywords

Fiber Bragg grating, wavelet filter, Strain sensor, Interferometric noise.

Submitted at: May 31, 2010
Accepted at: June 16, 2010

Citation

C.C. CHAN, N. NI, J. SUN, Y.C. CHU, Y. TANG, C. L. POH, Interferometric noise suppression in fiber Bragg grating sensors by using wavelet filter, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 6, pp. 1241-1246 (2010)