Patents Represented by Law Firm Arent Fox Kintner Plotkin, PLLC
  • Optic fiber wavelength multiplexer-demultiplexer
    Patent number: 6157764
    Abstract: A multiplexer, demultiplexer or router includes an input fiber and an output fiber, each fiber having a core and a sheath. At least one of the input fiber and the output fiber includes an intermediate ring having an optic index greater than the optic indexes of immediately adjacent portions of the core and the optic sheath and less than the optic index of the center axis of the core.
    Type: Grant
    Filed: March 19, 1998
    Date of Patent: December 5, 2000
    Assignee: Instruments S.A.
    Inventor: Jean-Pierre Laude