The influence of diffraction in microinterferometry and microtomography of optical fibers

被引：0
|
作者：
Górski, W [1 ]
机构：
[1] Inst Micromech & Photon, PL-02525 Warsaw, Poland
来源：
OPTICS AND LASERS IN ENGINEERING | 2004年 / 41卷 / 03期
关键词：
optical metrology; tomographic rnicrointerferometry; microinterferometry; diffraction;
D O I：
10.1016/S0143-8166(02)00213-0
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Interferometric measurement of two- and three-dimensional refractive index distribution in optical fibers is numerically simulated with the use of wavefront calculation method based on Hyugens-Fresnel principle. The calculation is performed for two models of fibers: homogenous and step-index multi-mode fiber. The simulation is aimed at determination of errors caused by diffraction artifacts due to microdimensions of tested objects and the presence of boundaries of media with different refractive indices. The result of simulation is methodology of increasing the accuracy of measurement in selected areas of measurement field/volume. The simulation outcomes are confirmed by the experiment. (C) 2003 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：565 / 583
页数：19
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