Long-Period Gratings Dynamic Interrogation With Modulated Fiber Bragg Gratings and Optical Amplification

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

Autores

Carvalho, JP (Autor) Outra; Coelho, L (Autor) Outra; Pontes, MJ (Autor) Outra; Barbero, AP (Autor) Outra; Martinez, MA (Autor) Outra; Ribeiro, RM (Autor) Outra; Weyl, J (Autor) Outra; Baptista, JM (Autor) Outra; Giraldi, MTR (Autor) Outra; Dias, I (Autor) Outra; Santos, JL (Autor) FCUP; Frazao, O (Autor) FCUP

Revista

Título: IEEE Sensors Journal

Vol. 12

Páginas: 179-183

ISSN: 1530-437X

Editora: IEEE

Indexação

ISI Web of Knowledge - 8 Citações

Scopus - 8 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia electrotécnica, electrónica e informática

Outras Informações

ID Authenticus: P-002-HHH

DOI: 10.1109/jsen.2011.2128305

Abstract (EN): It is reported a long-period grating (LPG) dynamic interrogation technique based on the modulation of fiber Bragg gratings located in the readout unit of the system. It permits to attenuate the effect of the 1/f noise of the electronics in the resolution of the LPG-based sensing head. The concept is tested to detect variations of the external refractive index and a resolution of 2.0 x 10(-4) NIR was achieved without system optimization. Additionally, the effect in the sensor resolution when introducing Erbium and Raman optical amplification is experimentally investigated.

Idioma: Inglês

Tipo (Avaliação Docente): Científica