Patents by Inventor Didier Grot

Didier Grot has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Device for temporal subsampling of an OTDM optical signal, OTDM-WDM converter comprising same and OTDM-WDM converter
    Patent number: 7885544
    Abstract: The invention concerns a device for temporal subsampling of an OTDM optical signal at a predetermined subsampling frequency, comprising a generator (10) for generating clock pulses transmitted at the predetermined subsampling frequency and at a conversion wavelength ?H and a wavelength converter device (16) 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 (18) 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 (20) of phase modulation into amplitude modulation.
    Type: Grant
    Filed: January 6, 2004
    Date of Patent: February 8, 2011
    Assignee: France Telecom
    Inventors: René Coquille, Erwan Pincemin, Didier Grot, Albert Luron
  • Device for temporal subsampling of an otdm optical signal, otdm-wdm converter comprising same and otdm-wdm converter
    Publication number: 20070183710
    Abstract: The invention concerns a device for temporal subsampling of an OTDM optical signal at a predetermined subsampling frequency, comprising a generator (10) for generating clock pulses transmitted at the predetermined subsampling frequency and at a conversion wavelength ?H and a wavelength converter device (16) 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 (18) 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 (20) of phase modulation into amplitude modulation.
    Type: Application
    Filed: January 6, 2004
    Publication date: August 9, 2007
    Applicant: France Telecom
    Inventors: Rene Coquille, Erwan Pincemin, Didier Grot, Albert Luron