Patents by Inventor Martin Heinrich Muendel

Martin Heinrich Muendel 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).

  • Fiber multimode laser with reduced noise
    Patent number: 5805621
    Abstract: Applicants have discovered that the intermodal beat noise of a fiber multimode laser can be substantially reduced by providing the fiber with an output coupler of broadened bandwidth. In a preferred embodiment, a reduced-noise, high power light source comprises a cladding pumped fiber laser having a chirped output grating. Experiments show that increasing the output bandwidth from 0.254 to 0.577 nm reduces the relative intensity-to-noise ratio 10 dB in a Nd-doped fiber laser. Increasing the bandwidth from 0.2 nm to 0.3 nm in a Yb-doped laser similarly reduces the noise by 12 dB.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: September 8, 1998
    Assignee: Lucent Technologies, Inc.
    Inventors: Stephen Gregory Grubb, Clifford Headley, Martin Heinrich Muendel, Janet Renee Pedrazzani, Bennett H. Rockney, Thomas A. Strasser