• Chinese Journal of Lasers
  • Vol. 50, Issue 11, 1101015 (2023)
Li Li1, Jiarong Zheng1,2, and Xiuquan Ma1,3,4,*
Author Affiliations
  • 1School of Mechanical Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
  • 2GZ Photonics Technology Co., Ltd., Dongguan 523835, Guangdong, China
  • 3Hubei Optics Valley Laboratory, Wuhan 430074, Hubei, China
  • 4State Key Laboratory of Digital Manufacturing Equipment and Technology, Wuhan 430074, Hubei, China
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    DOI: 10.3788/CJL230502 Cite this Article Set citation alerts
    Li Li, Jiarong Zheng, Xiuquan Ma. Prediction of Optical Fiber Tapering Diameter Based on Nonisothermal Flow Model and Neural Network[J]. Chinese Journal of Lasers, 2023, 50(11): 1101015 Copy Citation Text show less
    Nonisothermal flow model of fiber tapering and its boundary condition
    Fig. 1. Nonisothermal flow model of fiber tapering and its boundary condition
    Distribution of temperature field and velocity field during tapering under fixed heat source. (a) Temperature field; (b) velocity field
    Fig. 2. Distribution of temperature field and velocity field during tapering under fixed heat source. (a) Temperature field; (b) velocity field
    Experimental verification of tapering profile simulation. (a) Tapering experiment; (b) comparison of simulation results and experimental results of tapered profiles
    Fig. 3. Experimental verification of tapering profile simulation. (a) Tapering experiment; (b) comparison of simulation results and experimental results of tapered profiles
    Structure of BP neural network
    Fig. 4. Structure of BP neural network
    Comparison of neural network predicted diameters and simulated diameters
    Fig. 5. Comparison of neural network predicted diameters and simulated diameters
    ParameterValueRef.
    Density /(kg/m32200
    Surface tension /(N/m)0.316
    Viscosity /(Pa·s)3.8×10-14exp85640T ,  T<1670 K5.8×10-8exp61990T ,  T>1670 K17
    Heat conductivity /[W/(m·K)]0.9786+1.12×10-3T  ,  300 KT1100 K2.0504+1.177×10-4T ,  1100 K<T2200 K  18
    Specific heat capacity /[J/(kg·K)]35.936+3.3668T-0.0041T2+2.5803×10-6T3-8.0867×10-10T4+9.9048×10-14T5 ,  273 KT1973 K1273                      ,  1973 K<T2200 K  18
    Table 1. Parameters of glass used in simulation
    Li Li, Jiarong Zheng, Xiuquan Ma. Prediction of Optical Fiber Tapering Diameter Based on Nonisothermal Flow Model and Neural Network[J]. Chinese Journal of Lasers, 2023, 50(11): 1101015
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