两个梯度折射率分布平面光波导之间的连接损耗

应用科学学报 ›› 1996, Vol. 14 ›› Issue (4): 432-436.

两个梯度折射率分布平面光波导之间的连接损耗

王子华

上海大学, 嘉定校区

收稿日期:1995-04-07 修回日期:1995-09-01 出版日期:1996-12-31 发布日期:1996-12-31
作者简介:王子华:教授,上海大学嘉定校区光纤所,上海 201800

EVALUATION OF SPLICE LOSS DUE TO SIMULTANEOUS ANGULAR AND TRANSVERSE MISALIGNMENTS BETWEEN TWO NONIDENTICAL GRADED-INDEX PLANAR OPTICAL WAVEGUIDES

WANG ZIHUA

Shanghai University, Jiading Campus

Received:1995-04-07 Revised:1995-09-01 Online:1996-12-31 Published:1996-12-31

摘要/Abstract

摘要： 计算了两个不同的梯度型平面光波导在横向位移与角度偏差同时存在时的连接损耗.功率传输系数展开成Hermite-Gaussian函数的级数后,迭合积分可解析求出,文中方法的精度比基模场的高斯近似方法高得多.并给出了数值计算实例并对连接损耗受各别偏差及波导参数的影响进行了讨论。最后检验了单一偏差连接损耗相加近似复合偏差连接损耗这一直观方法的准确程度.

关键词: 迭合积分, 平面光波导, 连接损耗

Abstract: An efficient method has proposed for evaluating the splice loss between two nonidentical arbitrarily graded-index singlemode planar optical waveguides.The power transmission coefficients are expressed as the sum of Hermite-Gaussian functions, and then the overlap integrals can be calculated analytically. Numerical examples have been given and the influence of waveguide parameters and the individual misalignment on splice loss is discussed. We have checked the accuracy of approximating the load due to both defects by adding the losses due to each individual defect.

Key words: planar optical waveguide, splice loss, overlap integral

王子华. 两个梯度折射率分布平面光波导之间的连接损耗[J]. 应用科学学报, 1996, 14(4): 432-436.

WANG ZIHUA. EVALUATION OF SPLICE LOSS DUE TO SIMULTANEOUS ANGULAR AND TRANSVERSE MISALIGNMENTS BETWEEN TWO NONIDENTICAL GRADED-INDEX PLANAR OPTICAL WAVEGUIDES[J]. Journal of Applied Sciences, 1996, 14(4): 432-436.