Abstract

This paper provides a short overview of the time I spent as a member of the Applied Optics Group at the University of Kent (1985-1989) followed by a review of my research during my time at Cranfield University (1989 to date).

Highlights

  • This paper provides a short overview of the time I spent as a member of the Applied Optics Group at the University of Kent (1985–1989) followed by a review of my research during my time at Cranfield University (1989 to date)

  • I was a member of the Applied Optics Group (AOG) at the University of Kent, led by Prof

  • As a consequence my research interests have developed across many application areas over the years, some of which are described in Section 3, and can best be summarized as the use of optical and optical fiber based instrumentation to solve measurement challenges within engineering, biomedical and applied science applications

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Summary

Introduction

I was a member of the Applied Optics Group (AOG) at the University of Kent, led by Prof. High speed operation was obtained using a Bragg cell in one path of the interferometer [1] and fiber based modulation using fiber wrapped around piezoelectric modulators [1, 2] These polarization state control schemes were used as signal processing techniques in a range of applications including light scattering [1], the measurement of optical activity [2], laser velocimetry [3] and Faraday rotation electric/magnetic field measurement [4,5,6,7,8]. Chromatic dispersion in optical fibers is an important parameter to determine for high speed telecommunications where it can be the limiting factor influencing performance At this time Paul Merritt, a BT/SERC sponsored PhD student, was investigating white light interferometry as a method to measure dispersion in short, lengths of singlemode optical fiber. For ease of presentation I have divided the research up into several themes but in reality there is a lot of overlap between them and in many cases the division is somewhat artificial

Laser velocimetry
Velocity
Speckle interferometry
Optical gas sensors
Findings
Optical fiber sensors
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