Strain-Temperature Discrimination Using Multimode Interference in Tapered Fiber

• Tipo: Artigo em Revista Científica Internacional
• Data: 2013

Autores

andre, rm (Autor) Outra; biazoli, cr (Autor) Outra; silva, so (Autor) Outra; marques, mb (Autor) FCUP; cordeiro, cmb (Autor) Outra; frazao, o (Autor) Outra

Revista

Título: IEEE Photonics Technology Letters

Vol. 25

Páginas: 155-158

ISSN: 1041-1135

Editora: IEEE

Indexação

ISI Web of Knowledge - 32 Citações

Scopus - 38 Citações

Outras Informações

ID Authenticus: P-002-186

DOI: 10.1109/lpt.2012.2230617

Abstract (EN): Tapering single-mode-multimode-single-mode structures to enhance sensitivity is proposed and experimentally demonstrated. 50-mm-long coreless multimode fiber sections are spliced between single-mode fibers (SMFs) and tapered. They are characterized in strain, and an increase in strain sensitivity is obtained with taper diameter reduction. Sensitivities as high as -23.69 pm/mu epsilon for the 15-mu m taper are attained. Temperature sensitivities also depend on taper diameter. A combination of two different diameter tapered SMF MMF-SMF structures, with cross-sensitivity to strain and temperature, is proposed as a sensing system for the simultaneous measurement of strain and temperature with resolutions of +/-5.6 mu epsilon and +/-1.6 degrees C, respectively. A good condition number of 3.16 is achieved with this sensing structure.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4