Performance limitation of a D-fiber evanescent wave methane sensor due to interference effects

Wei Jin; George Stewart; Brian Culshaw; Stuart C. Murray; Mark Wilkinson; John O. W. Norris

doi:10.1117/12.190972

21 October 1994 Performance limitation of a D-fiber evanescent wave methane sensor due to interference effects

Wei Jin, George Stewart, Brian Culshaw, Stuart C. Murray, Mark Wilkinson, John O. W. Norris

Proceedings Volume 2293, Chemical, Biochemical, and Environmental Fiber Sensors VI; (1994) https://doi.org/10.1117/12.190972
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

We model interference effects in a D-fibre evanescent wave methane sensor and predict its influence on the performance of the system. System sensitivity in terms of minimum detectable methane concentration is expressed as a function of birefringence and spectral transmission characteristics of the D-fibre, polarisation dependent loss occurring after the sensing D-fibre, and polarisation and coherence characteristics of the light source. The sensitivity is calculated for various system arrangements and is found to agree with experimental results.

Citation Download Citation

Wei Jin, George Stewart, Brian Culshaw, Stuart C. Murray, Mark Wilkinson, and John O. W. Norris "Performance limitation of a D-fiber evanescent wave methane sensor due to interference effects", Proc. SPIE 2293, Chemical, Biochemical, and Environmental Fiber Sensors VI, (21 October 1994); https://doi.org/10.1117/12.190972

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