VECTOR THEORY OF DIFFRACTION BY A SINGLE-MODE FIBER - APPLICATION TO MODE-FIELD DIAMETER MEASUREMENTS

被引：4
|
作者：
YOUNG, M
WITTMANN, RC
机构：
[1] Electromagnetic Technology Division, National Institute of Standards and Technology, Boulder, CO, 80303
来源：
OPTICS LETTERS | 1993年 / 18卷 / 20期
关键词：
D O I：
10.1364/OL.18.001715
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We derive a far-field diffraction integral by (vector) electromagnetic theory; the result differs from the (scalar) Rayleigh-Sommerfeld or Kirchhoff result in that it depends on polarization. For unpolarized light, we derive a factor (1 + cos2 theta)1/2/square root 2 that replaces the usual obliquity factor: Omitting this factor can cause an error of the same order as the measurement uncertainty in determining the mode-field diameter of a single-mode fiber from far-field data.
引用
收藏
页码：1715 / 1717
页数：3
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