Theoretical analysis of the evanescent wave absorption coefficient for multimode fibre-optic evanescent wave absorption sensors

Autor:	John C. Fothergill, Yu Xu, CD Hanning, N. Barrie Jones
Rok vydání:	1999
Předmět:	Physics Multi-mode optical fiber Optical fiber Field (physics) business.industry Skew Physics::Optics Atomic and Molecular Physics and Optics law.invention Cross section (physics) Optics law Angle of incidence (optics) Fiber optic sensor Absorptance Physics::Atomic Physics business
Zdroj:	Journal of Modern Optics. 46:2007-2014
ISSN:	1362-3044 0950-0340
Popis:	In an optical fibre of circular cross section, leaky skew rays transmit power in a different way from trapped and meridional rays. In this paper, a theoretical analysis of the evanescent wave absorption coefficient for leaky skew rays in multimode optical fibre evanescent wave absorption sensors is presented. Further, a comprehensive expression for the effective evanescent wave absorption coefficient is obtained. Some numerical results are given to illustrate this theoretical analysis. This work could be applied to optimize the design of fibre-optic evanescent wave absorption sensors.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d1e70e3180cf201e63373605501e4519 https://doi.org/10.1080/09500349908231389 Zobrazit plný text záznamu