Asymmetrically and symmetrically coated tapered optical fiber for sensing applications

Ignacio Del Villar; Abian B. Socorro; Jesus M. Corres; Francisco J. Arregui; Ignacio R. Matias

doi:10.1117/12.2194787

28 September 2015 Asymmetrically and symmetrically coated tapered optical fiber for sensing applications

Ignacio Del Villar, Abian B. Socorro, Jesus M. Corres, Francisco J. Arregui, Ignacio R. Matias

Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96343J (2015) https://doi.org/10.1117/12.2194787
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil

Abstract

The deposition of a non-metallic thin-film in a symmetrically coated tapered optical fiber leads to the generation of resonances due to guidance of a mode in the thin-film. At certain conditions, the resonances overlap each other, which can be avoided with an asymmetric coated tapered optical fiber, which permits to obtain resonances for TM and TE polarization separately. Numerical results showing the sensitivity to coating thickness and surrounding medium refractive index are also presented for both polarizations.

Citation Download Citation

Ignacio Del Villar, Abian B. Socorro, Jesus M. Corres, Francisco J. Arregui, and Ignacio R. Matias "Asymmetrically and symmetrically coated tapered optical fiber for sensing applications", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96343J (28 September 2015); https://doi.org/10.1117/12.2194787

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