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Microstructure and properties of novel polarization maintaining fiber

  • Li Mei-cheng 
  • Liu Li-hua 
  • Xue Jian-jun 
  • Xiao Tian-peng 
  • Liang Le-tian 
  • Zhao Lian-cheng 
Article

Abstract

An improved type of elliptical jacket polarization maintaining fiber was developed by using a modified chemical vapor deposition method with special treatment. Different from conventional elliptical jacket, the shape of the stress jacket was transmuted. The cross-section of fiber consists of 5 layers: substrate, outer cladding, stress jacket, inner cladding and core. The cross sectional component distribution was investigated by electron probe microscopy and energy dispersive spectrum. The finite element method was used to calculate the stress birefringence. Based on the analyses of the microstructure, the technological process is improved. The temperature cycling test of the fiber wound into gyroscope coils was performed. The results show that the fiber possesses superior performance at high and low temperatures compared with other fibers. The high homogeneity is achieved by well-controlled modified chemical vapor deposition process. A homogeneous length of 8 km fiber is obtained. With advantages in homogeneity and length, the fiber has great potential in applications such as fiber gyroscopes, fiber hydrophone and other optical fiber sensors.

Key words

microstructure property elliptical jacket polarization maintaining fiber stress applying part 

CLC number

TN304 

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Copyright information

© Central South University 2005

Authors and Affiliations

  • Li Mei-cheng 
    • 1
  • Liu Li-hua 
    • 2
  • Xue Jian-jun 
    • 3
  • Xiao Tian-peng 
    • 3
  • Liang Le-tian 
    • 3
  • Zhao Lian-cheng 
    • 1
  1. 1.School of Materials Science and EngineeringHarbin Institute of TechnologyHarbinChina
  2. 2.Fasten Group, JiangyinJiangsuChina
  3. 3.Jiangsu Fasten Photonics CompanyJiangyinChina

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