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Proceedings Paper

High sensitivity high temperature sensor based on SMS structure with large-core all-solid bandgap fiber as the multimode section
Author(s): Marcos A. R. Franco; Alice L. S. Cruz; Valdir A. Serrão; Carmem L. Barbosa
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Paper Abstract

A fiber optic interferometric device based on a singlemode-multimode-singlemode (SMS) structure is proposed as a high sensitive high temperature sensor. The multimode section (MMF) consists of a large-core all-solid photonic bandgap fiber (AS-PBF) with silica as the background material and germanium-doped silica at the high index regions. The numerical analyses were carried out by beam propagation method. The numerical results indicate a constant high temperature sensitivity of ~−35 pm/°C over a large temperature range from 20oC to 930°C.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 9157A9 (2 June 2014); doi: 10.1117/12.2058077
Show Author Affiliations
Marcos A. R. Franco, Instituto de Estudos Avançados (Brazil)
Instituto Tecnológico de Aeronáutica (Brazil)
Alice L. S. Cruz, Instituto de Estudos Avançados (Brazil)
Instituto Tecnológico de Aeronáutica (Brazil)
Valdir A. Serrão, Instituto de Estudos Avançados (Brazil)
Carmem L. Barbosa, Instituto de Estudos Avançados (Brazil)


Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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