Patents by Inventor Ryf Roland

Ryf Roland 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).

  • Multi-Mode Optical Fiber Amplifier
    Publication number: 20140055843
    Abstract: An apparatus includes a multi-core optical fiber and first, second, and third optical couplers. The multi-core optical fiber is rare-earth doped to provide optical amplification in response to optical pumping thereof. The first optical coupler is configured to end-couple a first multi-mode optical fiber to an end of the multi-core optical fiber. The second optical coupler is configured to end-couple a second multi-mode optical fiber to an end of the multi-core optical fiber. The third optical coupler is configured to optically couple a pump light source to the multi-core optical fiber.
    Type: Application
    Filed: September 30, 2012
    Publication date: February 27, 2014
    Inventors: Ryf Roland, Nicolas K. Fontaine