Optical Fibre Sensors - Chapter 8: Principles and Components


Gambling, W.A. and Poole, S.B. (1989) Optical Fibre Sensors - Chapter 8: Principles and Components. In, Dakin, J.P. and Culshaw, B. (eds.) Optical Fibre Sensors. , Artech House, 249-276.

Download

[img]
Preview
PDF
Download (2080Kb) | Preview

Description/Abstract

Optical fibres have some degree of sensitivity to a wide range of external parameters. On the other hand the effects are usually small and are minimised as far as possible in fibres designed for telecommunications. Furthermore it is often difficult to differentiate between a number of small responses which may occur simultaneously. Considerable advantages can be gained in sensor applications by appropriate selection of core and cladding materials and by novel fibre structures and designs.

Thus by spinning the preform during fibre drawing a high degree of circular birefringence can be introduced whilst the linear birefringence becomes negligible. Such fibres can behave as sensors of magnetic fields and electric currents. By introducing a high degree of linear birefringence fibre gyroscopes capable of measuring angular rotation become possible. The introduction of rare-earth materials into the core produces absorption bands with steep edges which have a strong wavelength sensitivity to changes in temperature. This produces the basis for distributed sensors which cover a wide range of temperatures.

A variety of novel types of optical fibres are presently being explored for potential application to sensors and transducers.

Item Type: Book Section
ISBNs: 0890063176
Related URLs:
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: University Structure - Pre August 2011 > Optoelectronics Research Centre
ePrint ID: 77568
Date Deposited: 11 Mar 2010
Last Modified: 25 Sep 2014 09:56
URI: http://eprints.soton.ac.uk/id/eprint/77568

Actions (login required)

View Item View Item

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics