Patents by Inventor Milov Popovic

Milov Popovic 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 waveguides with trench structures
    Patent number: 6621972
    Abstract: Arrangements using air trench cladding enables minimization of the evanescent tail to suppress light coupling to radiation modes, resulting in low-loss bends and splitters. Structures including sharp bends and T-splitters without transmission loss, crossings without crosstalk, and couplers from/to fibers and with out-of-plane waveguides without substantial loss are provided with such air trench claddings. Air trench sidewall cladding of waveguides pushes evanescent tails toward top and bottom claddings to enhance coupling between vertically positioned waveguides. Fabrication processes using wafer bonding technology are also provided.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: September 16, 2003
    Assignee: Massachusetts Institute of Technology
    Inventors: Lionel C. Kimerling, Kazumi Wada, Hermann A. Haus, Milov Popovic, Shoji Akiyama
  • Optical waveguides with trench structures
    Publication number: 20020076188
    Abstract: Arrangements using air trench cladding enables minimization of the evanescent tail to suppress light coupling to radiation modes, resulting in low-loss bends and splitters. Structures including sharp bends and T-splitters without transmission loss, crossings without crosstalk, and couplers from/to fibers and with out-of-plane waveguides without substantial loss are provided with such air trench claddings. Air trench sidewall cladding of waveguides pushes evanescent tails toward top and bottom claddings to enhance coupling between vertically positioned waveguides. Fabrication processes using wafer bonding technology are also provided.
    Type: Application
    Filed: October 15, 2001
    Publication date: June 20, 2002
    Inventors: Lionel C. Kimerling, Kazumi Wada, Hermann A. Haus, Milov Popovic, Shoji Akiyama