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Design of high birefringence stress-induced polarization-maintaining fiber based on utilizing geometrical birefringence

机译:利用几何双折射设计高双折射应力诱导保偏光纤

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摘要

Considering the utilizing of geometrical birefringence, we propose a new type of stress-induced polarization-maintaining fiber (PMF) with a 'leaf-shaped' core -a structure found by combining the merits of elliptical and rhombic core shapes. The finite element method (FEM) is used to compare and analyze the contribution of the elliptical, rhombic, 'star-line shaped' and 'leaf-shaped' core on geometrical birefringence. The results show that this kind of PMF improves the polarization-maintaining performance of the fiber significantly, and its birefringence value can reach 7.692 x 10(-4) in Panda-Type PMF and 7.732 x 10(-4) in Bow-Tie PMF which are doubled compare with the traditional Panda-Type PMF. Analysis of the mode field performance also indicates that the designed fiber is suitable for the sensing field. At the same time, this fine-diameter PMF conforms to the trend of miniaturization of current used fiber-optic sensors and can be applied to fiber optic gyroscopes.
机译:考虑到利用几何双折射,我们提出了一种新型的应力诱导偏振保持光纤(PMF),其具有“叶形”纤芯-一种通过结合椭圆形和菱形纤芯形状的优点而发现的结构。有限元方法(FEM)用于比较和分析椭圆形,菱形,“星形线”形和“叶形”形芯对几何双折射的贡献。结果表明,这种PMF可显着提高光纤的偏振保持性能,其双折射值在熊猫型PMF中可达到7.692 x 10(-4),在Bow-Tie PMF中可达到7.732 x 10(-4)。与传统的熊猫型PMF相比,翻了一番。对模式场性能的分析还表明,所设计的光纤适合于传感场。同时,这种细直径的PMF符合当前使用的光纤传感器小型化的趋势,并且可以应用于光纤陀螺仪。

著录项

  • 来源
    《Optical fiber technology》 |2019年第12期|102065.1-102065.8|共8页
  • 作者

  • 作者单位

    Harbin Engn Univ Coll Automat Harbin 150001 Heilongjiang Peoples R China;

    Beijing Inst Control & Elect Technol Beijing 100032 Peoples R China;

    Northeast Elect Power Univ Sch Automat Engn Jilin 132012 Jilin Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Polarization-maintaining fiber; Geometrical birefringence; Fiber design; Structural optimization;

    机译:保偏光纤;几何双折射;纤维设计;结构优化;

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