Bragg Fibre for Sensing Applications

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2010

Autores

Frazao, O (Autor) FCUP; Baptista, JM (Autor) Outra; Santos, JL (Autor) FCUP; Roy, P (Autor) Outra; Jamier, R (Autor) Outra; Fevrier, S (Autor) Outra

Ata de Conferência Internacional

Título: PHOTONIC CRYSTAL FIBERS IV

Conference on Photonic Crystal Fibers IV

Brussels, BELGIUM, APR 14-16, 2010

Indexação

ISI Web of Knowledge - 0 Citações

ISI Web of Science

Scopus - 3 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia electrotécnica, electrónica e informática

Outras Informações

ID Authenticus: P-003-C91

DOI: 10.1117/12.854391

Abstract (EN): In this work, we propose to take advantage of properties of a Bragg fibre for optical sensing. The Bragg fibre exhibits three concentric high refractive index layers embedded in pure silica and surrounding a 35 mu m diameter core. A short (0.3 m long) piece of Bragg fibre slightly multimode, is used to elaborate an intermodal interferometer, the spectral response of which exhibits a fringe pattern that depends on the operating wavelength, which can therefore be used as a sensor. The two modes considered were found to be the fundamental LP(01) and the high-order mode LP(02). The sensor has been characterized in strain and temperature and presents a sensitivity of - 1.09 pm/mu epsilon and 14.1 pm/degrees C respectively. The sensor demonstrated insensitivity to curvature thanks to well known Bragg fibre properties.

Idioma: Inglês

Tipo (Avaliação Docente): Científica