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:
Apr. 15, 2003
Filed:
Sep. 22, 2000
Sébastien Bigo, Palaiseau, FR;
Roland Mestric, Paris, FR;
Alcatel, Paris, FR;
Abstract
A wavelength division multiplex optical signal regenerator is inserted between two optical fiber sections of a wavelength division multiplex fiber optic transmission system including a transmission line made up of a plurality of optical fiber sections and providing N channels at different wavelengths where N is an integer greater than 1. The regenerator includes a demultiplexer for demultiplexing wavelength division multiplexed optical signals onto N individual channels, and a multiplexer for multiplexing optical signals at the output of the N individual channels into multiplexed optical signals. Each individual channel includes a saturable absorber for reshaping the optical signals of each channel, and a delay line. The length of each delay line is chosen to introduce a total delay &tgr;n″ between the (n+1)th channel and the nth channel to obtain a time shift of &tgr;n between the (n+1)th channel and the nth channel.