Temperature independent Refractive Index measurement using White Light Interferometry

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2012

Autores

gouveia, c (Autor) Outra; zibaii, m (Autor) Outra; latifi, h (Autor) Outra; marques, mj (Autor) FCUP; baptista, jm (Autor) Outra; jorge, pas (Autor) FCUP

Ata de Conferência Internacional

Título: 22ND INTERNATIONAL CONFERENCE ON OPTICAL FIBER SENSORS, PTS 1-3

22nd International Conference on Optical Fiber Sensors (OFS)

Beijing, PEOPLES R CHINA, OCT 15-19, 2012

Indexação

ISI Web of Knowledge - 1 Citação

Scopus - 2 Citações

Outras Informações

ID Authenticus: P-002-EEJ

DOI: 10.1117/12.975650

Abstract (EN): In this work a fiber optic interferometric system for differential refractive index measurement is described. The system is based on a white light Mach-Zehnder configuration, with serrodyne phase modulation, to interrogate two similar non-adiabatic tapered optical fiber sensors in a differential scheme. In this situation it is possible to measure the refractive index independent of temperature. Signal processing with low cost digital instrumentation developed in Labview environment allows a detectable change in refractive index of Delta n approximate to 2x10(-6), which is, from the best of our knowledge the highest resolution achieved using a fiber taper device. The results demonstrate the potential of the proposed scheme to operate as chemical and biological sensing platform.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4