Picture water droplets

Developing mathematical theories of the physical world: Open Access research on fluid dynamics from Strathclyde

Strathprints makes available Open Access scholarly outputs by Strathclyde's Department of Mathematics & Statistics, where continuum mechanics and industrial mathematics is a specialism. Such research seeks to understand fluid dynamics, among many other related areas such as liquid crystals and droplet evaporation.

The Department of Mathematics & Statistics also demonstrates expertise in population modelling & epidemiology, stochastic analysis, applied analysis and scientific computing. Access world leading mathematical and statistical Open Access research!

Explore all Strathclyde Open Access research...

Interrogation of extrinsic Fabry-Perot interferometric sensors using arrayed waveguide grating devices

Niewczas, P. and Dziuda, L. and Fusiek, G. and Willshire, A.J. and McDonald, J.R. and Thursby, G.J. and Harvey, D. and Michie, W.C. (2003) Interrogation of extrinsic Fabry-Perot interferometric sensors using arrayed waveguide grating devices. IEEE Transactions on Instrumentation and Measurement, 52 (8). pp. 1092-1096. ISSN 0018-9456

Full text not available in this repository. Request a copy from the Strathclyde author

Abstract

In this paper we present details of a solid state interrogation system based on a 16-channel arrayed waveguide grating (AWG) for interrogation of extrinsic Fabry-Perot interferometric (EFPI) sensors. The sensing element is configured in a reflecting mode and is illuminated by a broad-band light source through an optical fiber. The spectrum of light reflected from the sensor is analyzed using an AWG device acting as a coarse spectrometer. Using measurement points from the AWG channels, the original spectrum of the sensing element is reconstructed by a means of curve fitting. This allows sufficient information for the position of the reflection peak (or inverted peak) to be uniquely determined and the value of a measurement quantity obtained. In addition to the theoretical simulations of the proposed measurement system, we provide details of the laboratory evaluation using an EFPI strain sensor.