The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 29, 2008
Filed:
Jul. 25, 2003
Francisco M. Lopez Torres, Zaragoza, ES;
Carlos Heras Vila, Zaragoza, ES;
Pilar Blasco Herranz, Zaragoza, ES;
Juan Ignacio Garces Gregorio, Zaragoza, ES;
Rafael Alonso Esteban, Zaragoza, ES;
Francisco Villuendas Yuste, Zaragoza, ES;
Jesús Subias Domingo, Zaragoza, ES;
Francisco Javier Pelayo Zueco, Zaragoza, ES;
Francisco M. Lopez Torres, Zaragoza, ES;
Carlos Heras Vila, Zaragoza, ES;
Pilar Blasco Herranz, Zaragoza, ES;
Juan Ignacio Garces Gregorio, Zaragoza, ES;
Rafael Alonso Esteban, Zaragoza, ES;
Francisco Villuendas Yuste, Zaragoza, ES;
Jesús Subias Domingo, Zaragoza, ES;
Francisco Javier Pelayo Zueco, Zaragoza, ES;
Fibercom S.L., Zaragoza, ES;
Abstract
The invention relates to a device which is used for the spectral analysis of optical signals and which is based on the stimulated Brillouin scattering effect. The invention also relates to the associated measurement method which makes use of the optical signal amplification caused by the Brillouin scattering effect. The Brillouin scattering effect enables the selective optical amplification of a determined component of the optical spectrum of the signal to be analysed, known as the problem signal, for the measurement thereof with a determined dynamic range, sensitivity and resolution. According to the invention, the problem signal is introduced into an optical fibre together with a narrowband optical signal, known as the probe signal, with a determined wavelength. Said probe signal propagates in the opposite direction to that of the problem signal, such that both signals interact inside the fibre owing to the Brillouin effect.