Patents Assigned to GN Nettest New York, Inc.
  • Method and apparatus for electrically reducing coherence/polarization noise in reflectometers
    Patent number: 6122043
    Abstract: Apparatus (OTDR) for accurately locating and measuring the optical parameters and characteristics of fiberoptic cables which reduces the adverse effects of coherence noise without effecting the stability and repeatability of the acquired locating and measuring information.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: September 19, 2000
    Assignee: GN Nettest (New York) Inc.
    Inventor: John J. Barley
  • Method and apparatus for using phase modulation to reduce coherence/polarization noise in reflectometers
    Patent number: 6055043
    Abstract: Apparatus (OTDR) for accurately locating and measuring the optical parameters and characteristics of fiberoptic cables which reduces the adverse effects of coherence noise without effecting the stability and repeatability of the acquired locating and measuring information.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: April 25, 2000
    Assignee: GN Nettest New York, Inc.
    Inventor: Frank A. Chambers
  • Method and apparatus for thermally reducing coherence/polarization noise in reflectometers
    Patent number: 5923414
    Abstract: Apparatus (OTDR) for accurately locating and measuring the optical parameters and characteristics of fiberoptic cables which reduces the adverse effects of coherence noise without effecting the stability and repeatability of the acquired locating and measuring information.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: July 13, 1999
    Assignee: GN Nettest New York, Inc.
    Inventors: Paul D. Wagner, Gary D. Bridge