Analytical evaluation of bending loss oscillations in photonic crystal fibers
Analytical evaluation of bending loss oscillations in photonic crystal fibers
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DOI：
10.1016/j.optcom.2006.08.003
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发表时间：
2007-01
影响因子：
2.4
通讯作者：
J. Olszewski;M. Szpulak;T. Martynkien;W. Urbańczyk;F. Berghmans;T. Nasilowski;H. Thienpont
中科院分区：
文献类型：
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作者：
J. Olszewski;M. Szpulak;T. Martynkien;W. Urbańczyk;F. Berghmans;T. Nasilowski;H. Thienpont
提出了光子晶体光纤弯曲损耗振荡的解析公式。我们遵循的方法最初采用传统的双包层光纤，并表明它可以应用到PCF的替代传统光纤的结构参数，由他们的PCF同行。然后，我们研究的光谱依赖性的临界弯曲半径和第一阶损耗峰的位置作为一个功能的PCF包层的结构参数，如填充因子和孔环的数量。最后，我们通过比较选择PCF几何形状的有限元计算结果来评估分析模型的精度。
In this paper we present an analytical formula for bending loss oscillations in photonic crystal fibers (PCFs). We follow the approach originally adopted for conventional double-clad fibers and show that it can be applied to PCFs by substituting the structural parameters of the conventional fiber by their PCF counterparts. We then examine the spectral dependence of the critical bending radius and the position of the first order loss peak as a function of structural parameters of the PCF cladding such as the fill factor and the number of hole rings. Finally, we evaluate the precision of the analytical model by comparing the results to finite element calculations for a selection of PCF geometries.