Analytic solution of cut-off wavelength of bend-insensitive fibers based on frustrated total reflection.
Analytic solution of cut-off wavelength of bend-insensitive fibers based on frustrated total reflection.
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DOI：
10.1364/ao.53.001110
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发表时间：
2014-02
期刊：
影响因子：
1.9
通讯作者：
Zhen Lin;G. Ren;Siwen Zheng;Wei Jian;S. Jian
中科院分区：
文献类型：
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作者：
Zhen Lin;G. Ren;Siwen Zheng;Wei Jian;S. Jian
提出了一种求解单槽辅助弯曲不敏感光纤(BIF)截止波长的解析方法。结合受阻全反射和数值孔径的概念，推导了BIF的截止波长公式。实验结果表明，与传统的解析方法和数值方法相比，该方法对内包层凹陷比例较大的BIF的截止波长计算具有更高的精度，大大扩展了准确预测截止波长的范围。
An analytic method for solving the cut-off wavelength of single groove-assisted bend-insensitive fiber (BIF) was proposed. Combined with the concepts of frustrated total reflection and numerical aperture, the cut-off wavelength formula for the BIF was deduced. Experimental results showed that, compared to the traditional analytic and numeric methods, this method had higher accuracy in the calculation of cut-off wavelength for BIFs that had a large proportion of depressed inner-cladding layer, which significantly expanded the range of accurately predicting the cut-off wavelength.