Nanostrain measurement using chirped bragg grating fabry-perot interferometer?

• Tipo: Artigo em Revista Científica Internacional
• Data: 2012

Autores

Silva, RM (Autor) Outra; Ferreira, MS (Autor) Outra; Santos, JL (Autor) FCUP; Frazao, O (Autor) FCUP

Revista

Título: Photonic Sensors

Vol. 2

Páginas: 77-80

ISSN: 1674-9251

Editora: Springer Nature

Indexação

ISI Web of Knowledge

Scopus - 11 Citações

Outras Informações

ID Authenticus: P-008-36Z

DOI: 10.1007/s13320-011-0037-0

Abstract (EN): A simple nanostrain direct current (DC) measurement system based on a chirped Bragg grating Fabry-Perot (FP) structure is presented. The FP cavity, formed between the chirped fiber Bragg grating (CFBG) and the fiber end face, presents an aperiodic behavior due to the CFBG. A laser located in the fringe pattern slope is used to interrogate the sensing head. The optical power parameter is analyzed when strain is applied, for long and short period fringe pattern wavelengths, and sensitivities of -2.87 ¿W/¿e and -5.48'¿W/¿e are respectively obtained. This configuration presents a resolution of 70 ne. © The Author(s) 2011.

Idioma: Inglês

Tipo (Avaliação Docente): Científica