A Raman laser intensity sensor induced by the cooperative Rayleigh scattering in a ring configuration

• Tipo: Artigo em Revista Científica Internacional
• Data: 2011

Autores

baptista, jm (Autor) Outra; correia, c (Autor) Outra; marques, mb (Autor) FCUP; frazao, o (Autor) Outra

Revista

Título: Laser Physics

Vol. 21

Páginas: 928-930

ISSN: 1054-660X

Editora: Institute of Physics Publishing

Indexação

ISI Web of Knowledge - 4 Citações

Scopus - 3 Citações

Outras Informações

ID Authenticus: P-002-RT5

DOI: 10.1134/s1054660x11090015

Abstract (EN): In this work, a laser sensor is described that uses the multipath interference produced inside a ring cavity to measure the power loss induced by a moving taper intensity sensor. The laser is created due to the virtual distributed mirror formed by the Rayleigh scattering produced in a dispersion compensating fiber when pumped by a Raman laser. Two laser peaks were formed, one of them is obtained by the Raman gain (1555 nm) inside the ring and the second is created by the combination of the Raman gain and the Rayleigh scattering (1565 nm). A taper sensor is used as displacement sensor and when the losses is applied in the taper the second laser peak is reduced and the first peak is maintained constant and can be used as reference level.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 3