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 / Centre for Communications Engineering Research
RAS ID
13291
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
Access Rights
subscription content
Comments
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. Available here