Chinese Optics Letters, Volume. 13, Issue 9, 090603(2015)

Three-dimensional model of thermal-induced optical phase shifts in rotation sensing

Xuyou Li, Weiwei Ling, Yanhui Wei*, and Zhenlong Xu
Author Affiliations
  • Harbin Engineering University, College of Automation, Harbin, Heilongjiang 150001, China
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    Figures & Tables(8)
    Typical thermal-induced pressure of the fiber core.
    Setting (red solid line) and testing (blue dashed line) temperature: (a) first temperature load scheme and (b) second temperature load scheme.
    Fiber coil and housing: (a) simulation profile and (b) experimental environment diagram.
    Calculation of rate error ΩE1 (red dash–dot line), ΩE2 (black dotted line), and ΩE (blue solid line): (a) first simulation and (b) second simulation.
    Rate errors of IFOG in simulation (blue solid line) and experiment (black dash–dot line): (a) first experiment and (b) second experiment.
    • Table 1. Parameters of the Fiber Coil

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      Table 1. Parameters of the Fiber Coil

      ParametersValues
      Length of the Fiber Coil L (m)998
      Outer Radius Rout of the Fiber Coil (cm)6.05
      Inner Radius Rin of the Fiber Coil (cm)5.5
      Coil Height H (cm)1.3
      Number of Winding Layers M40
      Number of Loops per Layer N68
      Effective Index of Fiber Core n1.44
      Thermo-optic Coefficient n/T1.0×105
      Photoelastic Coefficients P11 and P120.121 and 0.270
    • Table 2. Parameters for Calculation

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      Table 2. Parameters for Calculation

      ParametersAl AlloyCoreCoatingGlue
      Density ρ(kg/m3)274022031190970
      Specific heat c(J/(kg·K))89670314001600
      Thermal conductivity λ(W/(m·K))2211.380.210.21
      Poisson’s ratio ν0.350.1860.40.499
      Young’s modulus (GPa)7076
      Coefficient α(K1)2.3×1055.5×107
    • Table 3. Parameters of the Coating Material and Glue Material for our Optical Fiber at Different Temperatures

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      Table 3. Parameters of the Coating Material and Glue Material for our Optical Fiber at Different Temperatures

      T (°C)Young’s Modulus Ecoating (GPa)Thermal Expansion Coefficient αcoating (1/K)Young’s Modulus Eglue (MPa)Thermal Expansion Coefficient αglue (1/K)
      −401.8205×105851.5×104
      −201.665×105222×104
      01.6225×10562.3×104
      201.5857×10512.3×104
      401.2591.2×10412.3×104
      600.7941.5×10412.3×104
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    Xuyou Li, Weiwei Ling, Yanhui Wei, Zhenlong Xu, "Three-dimensional model of thermal-induced optical phase shifts in rotation sensing," Chin. Opt. Lett. 13, 090603 (2015)

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    Paper Information

    Category: Fiber Optics and Optical Communications

    Received: May. 7, 2015

    Accepted: Jun. 19, 2015

    Published Online: Sep. 14, 2018

    The Author Email: Yanhui Wei (wyhhit@163.com)

    DOI:10.3788/COL201513.090603

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