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:
Jun. 21, 2005
Filed:
Apr. 08, 2003
Yann Frignac, Paris, FR;
Gabriel Charlet, Villiers-le-Bacle, FR;
Yann Frignac, Paris, FR;
Gabriel Charlet, Villiers-le-Bacle, FR;
Alcatel, Paris, FR;
Abstract
The invention relates to an interleaver circuit (') for interleaving optical signals, comprising a first and a second input port (), an output port (), a first optical filter (′) that has a first filter function with periodic passbands () and is connected to the first input port (), a second optical filter (′) that has a second filter function with periodic passbands () and is connected to the second input port (), and an optical interleaver (). The latter comprises a multiplexing port () connected to the output port () and two de-multiplexing ports () connected to the first input port () via the first optical filter (′) and the second optical filter (′), respectively. At least one optical filter (′) is tunable such that the passband frequencies are collectively shiftable without altering the periodicity of the filter function.