Bending losses of the asymmetric slab waveguide
Bending losses of the asymmetric slab waveguide
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DOI：
10.1002/j.1538-7305.1971.tb02620.x
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发表时间：
1971-10
影响因子：
--
通讯作者：
D. Marcuse
中科院分区：
文献类型：
--
作者：
D. Marcuse
计算了非对称平板波导的弯曲损耗。计算是基于弯曲结构的麦克斯韦方程的解的精确形式的知识和弯曲波导附近的场可以由直波导的场近似的附加假设。该理论的结果与现有的理论是一致的。结果表明，如果将进入弯曲损耗公式的模参数替换为圆光纤的相应模参数，则可以利用弯曲损耗公式估算圆光纤的弯曲损耗。我们提出的曲线，允许的弯曲损耗的最低阶甚至TE模式的对称平板波导的数值评估。
The bending losses of the asymmetric slab waveguide are computed. The computation is based on the knowledge of the exact form of the solution of Maxwell's equations of the bent structure and the additional assumption that the field near the bent waveguide can be approximated by the field of the straight waveguide. The result of this theory is in good agreement with an existing theory. It appears that the bending loss formula can be used to estimate the bending losses of the round optical fiber if the mode parameters entering the formula are replaced by the corresponding mode parameters of the round fiber. We present curves that allow the numerical evaluation of the bending loss of the lowest order even TE mode of the symmetric slab waveguide.