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:
May. 25, 2010
Filed:
Sep. 29, 2004
Carlos DE Barros, Boulogne-Billancourt, FR;
Lionel Provost, Marcoussis, FR;
Xavier Bonnet, St. Remy les Chevreuse, FR;
Isabelle Riant, Orsay, FR;
Carlos De Barros, Boulogne-Billancourt, FR;
Lionel Provost, Marcoussis, FR;
Xavier Bonnet, St. Remy les Chevreuse, FR;
Isabelle Riant, Orsay, FR;
Draka Comteq B.V., Amsterdam, NL;
Abstract
An optical device (D) is dedicated to the transformation of the propagation mode of optical signals. This device comprises at least a first mode converter () that is supplied with signals that are propagated in a first guided mode and that delivers the signals in a multimode fibre () partly in the first guided mode and partly in a second guided more of a higher order that the first. The multimode fibre () comprises at least first passive filtering means (R) which have the task of converting the first guided mode into at least one dissipative cladding mode in order to prevent or limit the propagation of the signals in this first guided mode while at the same time authorising the propagation of the signals having the second guided mode in the multimode fibre ().