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:
Feb. 13, 2007
Filed:
Apr. 05, 2005
Jean-jacques Guerin, Antony, FR;
Olivier Durand, Ste Genevieve des Bois, FR;
Fabrice Poussiere, Massy, FR;
Jean-Jacques Guerin, Antony, FR;
Olivier Durand, Ste Genevieve des Bois, FR;
Fabrice Poussiere, Massy, FR;
Alcatel, Paris, FR;
Abstract
An optical chromatic dispersion compensation module consists of a portion of fiber () comprising a variable pitch Bragg grating and a mechanical structure () consisting of two flexible mountings (') and one fixed mounting (). The portion of fiber () is attached to said mechanical structure () at three points: A first soft mount point () is connected to the fixed mounting () and two rigid mount points (′) are connected to the flexible mountings (′). The module also consists of a mechanical actuator () designed to act on the mechanical structure () to compress a first portion of the Bragg grating and to stretch a second portion of the Bragg grating while keeping the central section of the grating fixed. The chromatic dispersion value produced by the Bragg grating filter is thus modified, while its central wavelength remains fixed.