29 October 1989 Spark Discharge Detection Using Photoluminescent Optical Fibre - Application In Microwave Waveguides
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Proceedings Volume 1120, Fibre Optics '89; (1989) https://doi.org/10.1117/12.961004
Event: Sira/Fibre Optics '89, 1989, London, United Kingdom
Abstract
An optical fibre with a core which photoluminesces is assessed as a means of detecting light emitted from a spark discharge in air. The spectral properties of both the fibre and the spark show significant overlap and the detection of sparks is demonstrated. At the peak excitation wavelength of the fibre, i.e. 400 nm, the photoluminescent response of the fibre is 7x10-7 and the output from the fibre increases linearly with incident intensity. The response time of the fibre, when excited by a spark, is nominally 3 ms which is limited by the lifetime of the excited state producing the luminescence. The application of the fibre to detect breakdown in air filled microwave waveguides carrying high powers is discussed.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. J. Harris, A. J. Harris, L. J. Auchterlonie, L. J. Auchterlonie, Z. A. Haron, Z. A. Haron, M. Jackson, M. Jackson, } "Spark Discharge Detection Using Photoluminescent Optical Fibre - Application In Microwave Waveguides", Proc. SPIE 1120, Fibre Optics '89, (29 October 1989); doi: 10.1117/12.961004; https://doi.org/10.1117/12.961004
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