Modal LPG-based Mach-Zehnder interferometer with controlled sensitivity for refractive index measurement

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2008

Autores

Caldas, P (Autor) Outra; Jorge, PAS (Autor) FCUP; Araujo, F (Autor) Outra; Ferreira, LA (Autor) Outra; Rego, G (Autor) Outra; Santos, JL (Autor) FCUP

Ata de Conferência Internacional

Título: 19TH INTERNATIONAL CONFERENCE ON OPTICAL FIBRE SENSORS, PTS 1 AND 2

19th International Conference on Optical Fibre Sensors

Perth, AUSTRALIA, APR 15-18, 2008

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 0 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Biotecnologia ambiental

Outras Informações

ID Authenticus: P-004-542

DOI: 10.1117/12.786093

Abstract (EN): In this work, an LPG-based Mach-Zehnder interferometer was evaluated as a sensing structure for environmental refractive index measurement. To interrogate this sensing device, coherence addressing and pseudo-heterodyne processing were used. The impact of stretching, bending and twisting the interferometer on the sensitivity to refractive index changes r was studied. It is shown that, due to the antisymmetric nature of cladding modes in arc-induced LPGs, it is possible to tune the system sensitivity by simple mechanical action.

Idioma: Inglês

Tipo (Avaliação Docente): Científica