Optical and Quantum Electronics

, Volume 44, Issue 10–11, pp 483–491 | Cite as

Diametric load sensor using a fiber Bragg grating and its differential group delay analysis

Article
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Abstract

Different from the basic sensing theory of the fiber Bragg grating (FBG) sensors based on spectral analysis, a new method exploiting the polarization properties of FBG for diametric load sensing is proposed. In this paper, the evolution of the differential group delay (DGD) response of FBG with respect to the diametric load is completely studied. The centroid information of the DGD evolution of FBG is subsequently proposed for diametric load sensing. Experiments were carried out to verify the reasonability and feasibility of the sensing method. Good agreements between experimental results and numerical simulations had been obtained.

Keywords

Fiber Bragg grating Diametric load Differential group delay Height of centroid 
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Copyright information

© Springer Science+Business Media, LLC. 2012

Authors and Affiliations

  1. 1.School of Physics Science and TechnologyNanjing Normal UniversityNanjingPeople’s Republic of China

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