Title

A Fibre Bragg Grating Based Reed Switch for Optical Fibre Intrusion Detection Systems

Document Type

Conference Proceeding

Publisher

Australian Optical Society/Casual Productions

Faculty

Faculty of Computing, Health and Science

School

School of Engineering (SOE) / Centre for Communications Engineering Research

RAS ID

13291

Comments

This article was originally published as: Wild, G. , Swan, G. I., & Hinckley, S. (2011). A Fibre Bragg Grating Based Reed Switch for Optical Fibre Intrusion Detection Systems. Paper presented at the Incorporating the Australasian Conference on Optics, Lasers and Spectroscopy and the Australian Conference on Optical Fibre Technology. Sydney, Australia. Original article available here

Abstract

We show the implementation of an optical Reed switch, for intrusion detection systems. The Reed switch uses a novel transducer to convert the magnetic field into a strain, which is then converted into an optical signal by an optical fiber Bragg grating. The transducer works by using the magnetic field, to cause a ferromagnetic layer to be drawn towards a diamagnetic layer. The fiber Bragg grating is located between the two layers, such that when the magnetic field is present, the fiber is compressed, transversely. This results in a change in the Bragg gratings optical properties, specifically its spectral response, which can then be measured by the intrusion detection system.

DOI

10.1109/IQEC-CLEO.2011.6194127

 

Link to publisher version (DOI)

10.1109/IQEC-CLEO.2011.6194127