Optoelectronic Technology, Volume. 42, Issue 4, 298(2022)

A Novel Fiber Bragg Grating Sensor for Weak Pressure Measurement Based on the DGD

Hui PENG and Xiaoli FANG
Author Affiliations
  • Hunan Institute of Information Technology, Changsha 410151, CHN
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    A novel sensor based on the Differential Group Delay(DGD) of FBG was proposed in this paper. The evolution of the DGD with respect to pressure was studied theoretically and experimentally. A theoretical model for pressure sensing by use of DGD was built and numerically simulation was also carried out. The experimental pressure sensitivity was 424.2 ps/MPa at 0 MPa to 0.3 MPa. Good agreements between experiment results and numerical simulations could verify the feasibility of the method.

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    Hui PENG, Xiaoli FANG. A Novel Fiber Bragg Grating Sensor for Weak Pressure Measurement Based on the DGD[J]. Optoelectronic Technology, 2022, 42(4): 298

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    Paper Information

    Category: Research and Trial-manufacture

    Received: Jul. 9, 2022

    Accepted: --

    Published Online: Dec. 23, 2022

    The Author Email:

    DOI:10.19453/j.cnki.1005-488x.2022.04.009

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