Doppler difference velocimetry using a 2-core photonic crystal fibre

W. N. MacPherson, J. D C Jones, B. J. Mangan, J. C. Knight, P. St J Russell

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In this paper we describe the first use of a two core photonic crystal fibre for fringe projection for use in a Doppler difference velocimeter. The two-core fibre, with a core separation of 17 μm, projects a series of fringes when both cores are illuminated with 633 nm light simultaneously. Light scattered from moving particles is coupled into a separate multi-mode (50/125 μm) receiving fibre and detected using a silicon detector and amplifier. The measured reflection intensity signal is processed in the frequency domain to obtain the velocity component of the moving particle.

Original languageEnglish
Title of host publication2002 15th Optical Fiber Sensors Conference Technical Digest, OFS 2002
PublisherIEEE
Pages603-606
Number of pages4
ISBN (Electronic)0780372891, 9780780372894
DOIs
Publication statusPublished - 1 Jan 2002
Event15th Optical Fiber Sensors Conference Technical Digest, OFS 2002 - Portland, USA United States
Duration: 6 May 200210 May 2002

Publication series

Name2002 15th Optical Fiber Sensors Conference Technical Digest, OFS 2002

Conference

Conference15th Optical Fiber Sensors Conference Technical Digest, OFS 2002
CountryUSA United States
CityPortland
Period6/05/0210/05/02

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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