Strain and temperature characterisation of sensing head based on suspended-core fibre in Sagnac interferometer

• Tipo: Artigo em Revista Científica Internacional
• Data: 2008

Autores

Frazao, O (Autor) Outra; Baptista, JM (Autor) Outra; Santos, JL (Autor) FCUP; Kobelke, J (Autor) Outra; Schuster, K (Autor) Outra

Revista

Título: Electronics Letters

Vol. 44

Páginas: 1455-U117

ISSN: 0013-5194

Editora: Wiley-Blackwell

Indexação

ISI Web of Knowledge - 16 Citações

Scopus - 22 Citações

Outras Informações

ID Authenticus: P-003-T9N

DOI: 10.1049/e1:20081431

Abstract (EN): The study of the strain and temperature characteristics of a sensing head based on a four-hole suspended-core fibre in a Sagnac interferometric configuration is reported. It is shown that, for the case of using an uncoated suspended-core fibre, a relatively large strain sensitivity is obtained (similar or equal to 1.94 pm/mu epsilon), while the temperature sensitivity is small (similar or equal to 0.29 pm/degrees C), pointing to a temperature-independent strain sensor. When the fibre is coated, the strain sensitivity remains essentially the same, while the temperature sensitivity becomes much larger and with a value that changes with the localisation of the temperature variation range.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 2