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High-efficiency off-axis coupling of rotating optical signals based on internal conical reflection

机译：基于内部锥形反射的旋转光信号的高效离轴耦合

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摘要

We propose an off-axis coupling method for rotating optical signals based on the internal conical reflection. An analytic model of off-axis coupling is developed and verified via simulation and experiment. According to theoretical analysis, the coupling efficiency depends on both the reflectivity of, and the number of reflections between, the conical and the circular plane mirrors. When the reflectivity of the conical and the circular plane mirrors are both constant, i.e. n = 0.973, the coupling efficiency is decreased with an increase in number of reflections. Experimental results show good agreement with theoretical predictions. In addition, our experiment demonstrates that the proposed method can achieve a multi-channel signal coupling with a maximum insertion loss of 1.62 dB in channel T1 and 0.98 dB in channel T2.
机译：我们提出了一种基于内部锥形反射的旋转光信号的离轴耦合方法。建立了离轴耦合分析模型，并通过仿真和实验验证。根据理论分析，耦合效率取决于圆锥形和圆形平面镜的反射率以及它们之间的反射次数。当锥形和圆形平面镜的反射率都恒定时，即n ＝ 0.973，耦合效率随反射次数的增加而降低。实验结果与理论预测吻合良好。此外，我们的实验表明，该方法可以实现多通道信号耦合，在通道T1中最大插入损耗为1.62 dB，在通道T2中最大插入损耗为0.98 dB。

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  • 来源
    《Optical fiber technology》 |2019年第7期|76-81|共6页
  • 作者

    Jia Dagong; Yun Fenjiao; Wang Ruihang; Zhang Hongxia; Xu Tianhua; Liu Tiegen;

  • 作者单位

    Tianjin Univ, Coll Precis Instrument & Optoelect Engn, Tianjin 300072, Peoples R China;

    Tianjin Univ, Coll Precis Instrument & Optoelect Engn, Tianjin 300072, Peoples R China;

    Tianjin Univ, Coll Precis Instrument & Optoelect Engn, Tianjin 300072, Peoples R China;

    Tianjin Univ, Coll Precis Instrument & Optoelect Engn, Tianjin 300072, Peoples R China;

    Univ Warwick, Sch Engn, Coventry CV4 7AL, W Midlands, England;

    Tianjin Univ, Coll Precis Instrument & Optoelect Engn, Tianjin 300072, 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

    Optical fiber component; Off-axis coupling; Rotating optical signal; Internal conical reflection;

    机译：光纤组件;轴外耦合;旋转光信号;内部锥形反射;

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