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椭圆芯保偏光纤模传输特性和模间干涉拍长的研究 被引量：3

Research on the Modular Interference Beat Length of an Elliptical Core PMF
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摘要 保偏光纤模传输特性和模间干涉拍长是模间干涉式光纤传感器设计中的关键参数,对于确定光纤传感器的工作波长、动态范围和线性度具有重要作用.本文从理论上对椭圆芯保偏光纤的模传输特性和模间间干涉拍长进行了分析计算,首先计算得到椭圆芯保偏光纤中几个线性偏振模的传输特性,并据此得到两个低阶线性偏振模LP01和LP1e1的模间干涉拍长.通过试验对计算得到的模间干涉拍长进行了研究,理论和试验结果表明模间干涉具有数百微米的拍长,可以用于设计稳定的光纤传感器. The modes propagation characteristics and modular interference beat length in Elliptical-core Polarization Maintenance Fiber（E-core PMF） are very important parameters for designing optic-fiber sensors based on modular interference. They play an important role in deciding the work wavelength, dynamic range and linearity of optic-fiber sensors. This paper calculates the modes propagation characteristics and modular interference beat length theoretically. The propagation characteristics of several low order modes in E-core PMF are calculated, and as a result,the modular interference beat length of LP01 and LP11 is obtained.An experiment is designed to investigate the modular interference beat length in an E-core PMF, and the experiment result shows that the beat length is about several hundreds micron, which is very suitable for designing applicable and reliable optic-fiber sensors.
作者 陈卫东 刘丰
机构地区 燕山大学信息科学与工程学院
出处 《电子学报》 EI CAS CSCD 北大核心 2009年第7期1624-1627,共4页 Acta Electronica Sinica
基金 国家自然科学基金(No.50477001)
关键词 保偏光纤 模间干涉拍长 光纤传感器 马卡梯里法 polaxization maintenance fiber modular interference beat length optic-fiber sendsor Marcatili method
分类号 TN818 [电子电信—信息与通信工程]
  • 相关文献

参考文献10

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共引文献14

同被引文献25

  • 1Wenxin Zheng. Auto-aligning and splicing PM-fibers of different types with a passive method [J]. Proe. of SPIE (S0277-786X), 1996, 2837: 356-367.
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引证文献3

二级引证文献7

电子学报
2009年 第7期

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