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. 08, 2011
Filed:
Jan. 06, 2004
René Coquille, Lannion, FR;
Erwan Pincemin, Gommenee'h, FR;
Didier Grot, Pleumeur-Bodou, FR;
Albert Luron, Rospez, FR;
René Coquille, Lannion, FR;
Erwan Pincemin, Gommenee'h, FR;
Didier Grot, Pleumeur-Bodou, FR;
Albert Luron, Rospez, FR;
France Telecom, Paris, FR;
Abstract
The invention concerns a device for temporal subsampling of an OTDM optical signal at a predetermined subsampling frequency, comprising a generator () for generating clock pulses transmitted at the predetermined subsampling frequency and at a conversion wavelength λand a wavelength converter device () adapted to receive at its input the OTDM optical signal and the clock pulses in order to deliver at its output a subsampled OTDM optical signal at the conversion wavelength. The converter device comprises a linear optical amplifier () adapted to receive the OTDM optical signal and the clock pulses propagating in the opposite direction, the maximum linear power of the conversion being adjusted so that it can be less than the peak power of the OTDM optical signal, and a converter () of phase modulation into amplitude modulation.