Shape sensing using multi-core fiber optic cable and parametric curve solutions

被引：316

作者：

Moore, Jason P. ^{[1
]}

Rogge, Matthew D. ^{[1
]}

机构：

[1] NASA Langley Res Ctr, Hampton, VA 23681 USA

来源：

OPTICS EXPRESS | 2012年 / 20卷 / 03期

关键词：

BEND MEASUREMENT; BRAGG GRATINGS;

D O I：

10.1364/OE.20.002967

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The shape of a multi-core optical fiber is calculated by numerically solving a set of Frenet-Serret equations describing the path of the fiber in three dimensions. Included in the Frenet-Serret equations are curvature and bending direction functions derived from distributed fiber Bragg grating strain measurements in each core. The method offers advantages over prior art in that it determines complex three-dimensional fiber shape as a continuous parametric solution rather than an integrated series of discrete planar bends. Results and error analysis of the method using a tri-core optical fiber is presented. Maximum error expressed as a percentage of fiber length was found to be 7.2%. 2012 Optical Society of America

引用

页码：2967 / 2973

页数：7

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