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半矢量模式求解在光波导弯曲损耗计算中的应用
Authors
叶志成
窦金锋
胡雄伟
韩培德
Publication date
1 January 2005
Publisher
Abstract
以柱坐标下的半矢量波动方程为基础,采用基于完美匹配层(PML)边界条件的有限差分方法,对弯曲波导进行模式求解,进而得到波导弯曲引起的辐射损耗.基于计算得到的直弯波导的模场分布,采用二维重叠积分法计算了两者连接时的过渡损耗.计算结果与已有实验结果符合较好.采用该方法,研究了SOI脊型波导的弯曲损耗与波导结构参数之间的关系,并对直弯波导的连接进行了优化
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Last time updated on 29/11/2016