Patents by Inventor Philippe C. Becker

Philippe C. Becker 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).

  • Optical fiber amplifier and a glass therefor
    Patent number: 5378664
    Abstract: A chalcogenide glass that is doped with praseodymium and contains a rare earth metal is disclosed. The rare earth metal is at least 10 mole percent of the metals in the glass. The concentration of the praseodymium in the glass is at least 200 ppm. The chalcogenide glass, when formed into an amplifier for an optical fiber transmission system, efficiently amplifies optical signals in the signal band of 1.3 .mu.m.
    Type: Grant
    Filed: June 24, 1993
    Date of Patent: January 3, 1995
    Assignee: AT&T Corp.
    Inventors: Philippe C. Becker, Allan J. Bruce, David J. DiGiovanni, Vincent G. Lambrecht, Jr.