Patents by Inventor Ajoy Ghatak

Ajoy Ghatak 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).

  • Small residual dispersion fiber connected with a dispersion compensating fiber
    Patent number: 6650812
    Abstract: An optical fiber link having a small residual dispersion fiber (SRDF) connected to a dispersion compensating fiber (DCF). The SRDF has a positive dispersion slope, and the DCF has a negative dispersion slope. The dispersion slope of the DCF is matched to the dispersion slope of the SRDF so that the DCF compensates the accumulated dispersion in the SRDF in the wavelength range between about 1530 nm to 1565 nm which represents the C-band of erbium doped fiber amplifiers (EDFA).
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: November 18, 2003
    Assignee: Renka Corporation
    Inventors: Ishwar Chandra Goyal, Ravendra Kumar Varshney, Bishnu Pal, Ajoy Ghatak
  • Small residual dispersion fiber connected with a dispersion compensating fiber
    Publication number: 20030007760
    Abstract: An optical fiber link having a small residual dispersion fiber (SRDF) connected to a dispersion compensating fiber (DCF). The SRDF has a positive dispersion slope, and the DCF has a negative dispersion slope. The dispersion slope of the DCF is matched to the dispersion slope of the SRDF so that the DCF compensates the accumulated dispersion in the SRDF in the wavelength range between about 1530 nm to 1565 nm which represents the C-band of erbium doped fiber amplifiers (EDFA).
    Type: Application
    Filed: April 27, 2001
    Publication date: January 9, 2003
    Applicant: Renka Corporation
    Inventors: I. C. Goyal, R. K. Varshney, Bishnu Pal, Ajoy Ghatak