Fibre-Optic Sensors Using Adiabatically Tapered Single-Mode Fibres

Abstract

A tapered single-mode fibre optic device was investigated for use as an intrinsic pH sensor. The sensing process is based on the detection of evanescent-wave excited fluorescence energy from an indicator dye circulating the taper. Appropriate selection of dye and taper parameters have allowed the sensor to perform well in harsh chemical environments, with near-real-time response. Future work could include immobilisation schemes for the indicator as well as other sensor types, such as pCa. Further optical properties of the tapered fibre will also be investigated.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1992
Accession Number
ADA254555

Entities

People

  • Zoe M. Hale

Organizations

  • University of Cambridge

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Absorption Spectra
  • Argon Lasers
  • Chemical Analysis
  • Chemical Synthesis
  • Chemistry
  • Detection
  • Ion Lasers
  • Laser Beams
  • Laser Dyes
  • Lasers
  • Light Sources
  • Measurement
  • Optical Fibers
  • Optical Properties
  • Optics
  • Protons
  • Refractive Index

Fields of Study

  • Physics

Readers

  • Chemistry (specifically Chemical Fluorescence)
  • Optical Physics and Photonics.
  • Phased Array Antenna Design.