An improved procedure to calculate the refractive index profile from the measured near-field intensity

被引：84

作者：

Mansour, I ^{[1
]}

Caccavale, F ^{[1
]}

机构：

[1] UNIV PADUA,DIPARTIMENTO FIS,INST NATL FIS MAT,I-35131 PADUA,ITALY

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 1996年 / 14卷 / 03期

关键词：

D O I：

10.1109/50.485603

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Refractive index profile of optical waveguides is reconstructed from the measured transmitted near-field intensity. A Butterworth low-pass digital filter is employed in the frequency domain to remove impulsive and high frequency fluctuations which have severe effects on the procedure to calculate the index profile from the measured power intensity. The proposed method has been applied to measure the index profile of monomode optical fiber Ti:LiNbO3 and buried MgTi:LiNbO3 channel waveguides.

引用

页码：423 / 428

页数：6

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