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Thermal stress on fiber coils with different winding patterns
Optical Fiber Technology ( IF 2.6 ) Pub Date : 2020-09-01 , DOI: 10.1016/j.yofte.2020.102307
Shuangchao Ge , Chenxia Guo , Ruifeng Yang

Abstract In this study, we analyzed the optical fiber coil performance of different quadrupole winding patterns per the differences in birefringent and elastic optical effects of optical fibers. We established both physical and mechanical models of the fiber coil for this purpose. We calculated the distribution of temperature changes and stress points inside the fiber coil with the proposed models under uniform temperature conditions, then calculated the changes in refraction index and phase differences in the fiber based on the results. A possible Brillouin shift caused by the stress in the fiber coils were anaylized for the proposed model and the ideal model. We found that a staggered line pattern reduces the number of stress points, exerts even force in every fiber, and reduces the extinction ratio of the optical fiber; to this effect, it is easier to compensate for temperature and enhance fiber coil quality under constant tension and temperature conditions using a staggered line pattern.

中文翻译:

具有不同缠绕方式的光纤线圈上的热应力

摘要 在本研究中,我们根据光纤的双折射和弹性光学效应的差异,分析了不同四极缠绕模式的光纤线圈性能。为此,我们建立了光纤线圈的物理和机械模型。我们在均匀温度条件下用所提出的模型计算了光纤线圈内部的温度变化和应力点的分布,然后根据结果计算了光纤中折射率和相位差的变化。针对所提出的模型和理想模型,分析了由光纤线圈中的应力引起的可能的布里渊位移。我们发现交错的线条图案减少了应力点的数量,在每根光纤上施加了均匀的力,并降低了光纤的消光比;为此,
更新日期:2020-09-01
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