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:
Jan. 10, 2006
Filed:
Apr. 22, 2004
Carlos DE Barros, Boulogne-Billancourt, FR;
Isabelle Riant, Orsay, FR;
Carlos De Barros, Boulogne-Billancourt, FR;
Isabelle Riant, Orsay, FR;
Alcatel, Paris, FR;
Abstract
An optical device (D) is dedicated to transforming the propagation mode of optical signals. The device comprises mode transformation means () associated with a multimode fiber () and comprising first and second mode converters (and) coupled to each other by a multimode fiber portion () of selected length (L). The first converter () is fed with signals propagating in a first mode and it delivers the signals to the fiber portion () in part in the first mode and in part in a second mode of order higher than the first, and the second converter () is arranged to cause the signals in the first and second modes to interfere so that on outlet therefrom they present a selected spectral spacing.