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.
© 2011 AOS
PDF ArticleMore Like This
Bo Lin, Wen Bin Ji, Swee Chuan Tjin, and Jianzhong Hao
FTu4B.2 Frontiers in Optics (FiO) 2014
Sidharth Gopan, K Vivek, C V Sreehari, T V Praveen, S Sham Kumar, and R Rajesh
Tu4A.80 International Conference on Fibre Optics and Photonics (Photonics) 2016
Geraldine Mariën, Nick Cvetojevic, Nemanja Jovanovic, Judith Dawes, Roger Haynes, Jon Lawrence, Quentin Parker, and Michael J. Withford
C799 Conference on Lasers and Electro-Optics/Pacific Rim (CLEO/PR) 2011