Patents by Inventor Roeland Nuyts

Roeland Nuyts 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).

  • Flat dispersion frequency discriminator (FDFD)
    Patent number: 7492976
    Abstract: This invention provides a flat dispersion frequency discriminator (FDFD) capable of having a substantially flat dispersion with either a positive or negative dispersion along the spectrum region of the discriminator. This way, a FDFD may not cause substantial distortion of the intensity patter of its output to minimize the occurrence distortion due to overshooting or undershooting of the intensity pattern depending on the relative spectral alignment of the laser output relative to the filter transmission.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: February 17, 2009
    Assignee: Finisar Corporation
    Inventors: Daniel Mahgerefteh, Duncan John William Walker, Roeland Nuyts
  • Method and apparatus for transmitting a signal using thermal chirp management of a directly modulated transmitter
    Patent number: 7406267
    Abstract: A fiber optic transmitter comprising a digital driver adapted to adjust the crossing point of a digital base signal, an optical source adapted to receive the digital base signal and produce a frequency modulated optical signal, and an optical spectrum reshaper adapted to convert the frequency modulated optical signal to an amplitude modulated optical signal. A method for transmitting a signal, comprising: adjusting the crossing point of a digital base signal; providing the adjusted signal to an optical source to produce a frequency modulated optical signal; and providing the frequency modulated optical signal to an optical spectrum reshaper to convert the frequency modulated optical signal to an amplitude modulated optical signal.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: July 29, 2008
    Assignee: Finisar Corporation
    Inventors: Daniel Mahgerefteh, Roeland Nuyts, Yasuhiro Matsui, Parviz Tayebati, Bart Johnson, Duncan Walker, Xueyan Zheng
  • Flat dispersion frequency discriminator (FDFD)
    Publication number: 20060274993
    Abstract: This invention provides a flat dispersion frequency discriminator (FDFD) capable of having a substantially flat dispersion with either a positive or negative dispersion along the spectrum region of the discriminator. This way, a FDFD may not cause substantial distortion of the intensity patter of its output to minimize the occurrence distortion due to overshooting or undershooting of the intensity pattern depending on the relative spectral alignment of the laser output relative to the filter transmission.
    Type: Application
    Filed: May 26, 2006
    Publication date: December 7, 2006
    Inventors: Daniel Mahgerefteh, Duncan Walker, Roeland Nuyts
  • Flat dispersion frequency discriminator (FDFD)
    Patent number: 7054538
    Abstract: This invention provides a flat dispersion frequency discriminator (FDFD) capable of having a substantially flat dispersion with either a positive or negative dispersion along the spectrum region of the discriminator. This way, a FDFD may not cause substantial distortion of the intensity patter of its output to minimize the occurrence distortion due to overshooting or undershooting of the intensity pattern depending on the relative spectral alignment of the laser output relative to the filter transmission.
    Type: Grant
    Filed: October 6, 2003
    Date of Patent: May 30, 2006
    Assignee: Azna LLC
    Inventors: Daniel Mahgerefteh, Duncan John William Walker, Roeland Nuyts
  • Method and apparatus for transmitting a signal using thermal chirp management of a directly modulated transmitter
    Publication number: 20050111852
    Abstract: A fiber optic transmitter comprising a digital driver adapted to adjust the crossing point of a digital base signal, an optical source adapted to receive the digital base signal and produce a frequency modulated optical signal, and an optical spectrum reshaper adapted to convert the frequency modulated optical signal to an amplitude modulated optical signal. A method for transmitting a signal, comprising: adjusting the crossing point of a digital base signal; providing the adjusted signal to an optical source to produce a frequency modulated optical signal; and providing the frequency modulated optical signal to an optical spectrum reshaper to convert the frequency modulated optical signal to an amplitude modulated optical signal.
    Type: Application
    Filed: September 2, 2004
    Publication date: May 26, 2005
    Inventors: Daniel Mahgerefteh, Roeland Nuyts, Yasuhiro Matsui, Parviz Tayebati, Bart Johnson, Duncan Walker, Xueyan Zheng
  • Flat dispersion frequency discriminator (FDFD)
    Publication number: 20040218890
    Abstract: This invention provides a flat dispersion frequency discriminator (FDFD) capable of having a substantially flat dispersion with either a positive or negative dispersion along the spectrum region of the discriminator. This way, a FDFD may not cause substantial distortion of the intensity patter of its output to minimize the occurrence distortion due to overshooting or undershooting of the intensity pattern depending on the relative spectral alignment of the laser output relative to the filter transmission.
    Type: Application
    Filed: October 6, 2003
    Publication date: November 4, 2004
    Inventors: Daniel Mahgerefteh, Duncan John William Walker, Roeland Nuyts