Two-core photonic crystal fibre for Doppler difference velocimetry

被引：39

作者：

MacPherson, WN ^{[1
]}

Jones, JDC

Mangan, BJ

Knight, JC

Russell, PS

机构：

[1] Heriot Watt Univ, Sch Engn & Phys Sci, Edinburgh EH14 4AS, Midlothian, Scotland

[2] Univ Bath, Dept Phys, Bath BA2 7AY, Avon, England

来源：

OPTICS COMMUNICATIONS | 2003年 / 223卷 / 4-6期

基金：

英国工程与自然科学研究理事会;

关键词：

laser Doppler difference; velocity measurement; fibre optic sensor; photonic crystal fibre;

D O I：

10.1016/S0030-4018(03)01676-6

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present the first application of a two-core photonic crystal fibre for fringe projection for use as a Doppler difference velocimeter. The two-core fibre projects a series of fringes when both cores are simultaneously illuminated with 633 nm light. Light scattered from moving particles is coupled into a separate multi-mode collection fibre and detected using a silicon detector and amplifier. The scattered signal is processed in the frequency domain to obtain the particle velocity component perpendicular to the fringes. (C) 2003 Published by Elsevier B.V.

引用

页码：375 / 380

页数：6

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