Patents by Inventor Tyson L. Lowder

Tyson L. Lowder 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).

  • Publication number: 20220123517
    Abstract: Signal combined optical fiber devices, systems, and methods for reducing signal spectrum pumping of Raman spectrum. Power of a Raman component in an output of a signal combined fiber laser system may be reduced by diversifying peak signal wavelengths across a plurality of signal generation and/or amplification modules that are input into a signal combiner. In some examples, fiber laser oscillators that are to have their output signals combined to reach a desired cumulative system output power are tuned to output signal bands of sufficiently different wavelengths that signal from separate ones of the oscillators do not collectively pump a single Raman band. With the combined signal component comprising different peak signal wavelengths, the Raman component of combined output may have multiple peak wavelengths and significantly lower power than in systems where signals of substantially the same signal peak wavelength are combined.
    Type: Application
    Filed: December 19, 2019
    Publication date: April 21, 2022
    Applicant: nLIGHT, Inc.
    Inventors: Tyson L. Lowder, Dahv A.V. Kliner, C. Geoffrey Fanning
  • Publication number: 20220094130
    Abstract: Optical fiber devices, systems, and methods for separating Raman spectrum from signal spectrum. Once separated, the Raman spectrum may be suppressed (e.g., as a result of a reduction in gain from the signal spectrum, and/or through dissipation of the Raman spectrum energy), while the signal spectrum may be propagated in one or more guided modes of a fiber system. In some embodiments, a fiber system may include a chirped fiber Bragg grating (CFBG) or a long period fiber grating (LPFG), each configured to couple a core propagation mode into a cladding propagation mode with an efficiency that is higher for Raman spectrum than for signal spectrum. A fiber system further may include a cladding light stripper (CLS) configured to preferentially remove cladding modes containing the Raman component.
    Type: Application
    Filed: December 19, 2019
    Publication date: March 24, 2022
    Applicant: nLIGHT, Inc.
    Inventors: Tyson L. Lowder, Dahv A.V. Kliner, C. Geoffrey Fanning
  • Publication number: 20220085567
    Abstract: Fiber laser devices, systems, and methods for reducing Raman spectrum in emissions from a resonant cavity. A fiber laser oscillator that is to generate an optical beam may include a Raman reflecting output coupler that strongly reflects a Raman component pumped within the resonant cavity, and partially reflects a signal component to sustain the oscillator and emit a signal that has a reduced Raman component. A Raman filtering output coupler may comprise a superstructure fiber grating, and such a grating may be chirped or otherwise designed to have a desired bandwidth.
    Type: Application
    Filed: December 19, 2019
    Publication date: March 17, 2022
    Applicant: nLIGHT, Inc.
    Inventors: Tyson L. Lowder, Dahv A.V. Kliner, C. Geoffrey Fanning
  • Publication number: 20220075121
    Abstract: Optical fiber devices, systems, and methods for coupling Raman spectrum out of an optical fiber selectively over a signal spectrum, which may be propagated in one or more guided modes of a fiber system. A fiber system may include a chirped fiber Bragg grating (CFBG) or a long period fiber grating (LPFG), each to unguide Raman light propagating in a core propagation mode of a fiber completely out of the fiber (through any surrounding cladding layer(s)) selectively over signal spectrum which is to remain in a guided mode of the fiber.
    Type: Application
    Filed: December 19, 2019
    Publication date: March 10, 2022
    Applicant: nLIGHT, Inc.
    Inventors: Tyson L. Lowder, Dahv A.V. Kliner, C. Geoffrey Fanning
  • Publication number: 20220069538
    Abstract: Optical fiber devices, systems, and methods for separating Raman spectrum from signal spectrum Raman spectrum may be suppressed as a result of a reduction in gain and/or through dissipation while the signal spectrum may Raman Components In be propagated in one or more guided modes of a fiber system. A fiber system may Length include a propagation mode coupler to couple a first guided mode into a second guided mode with an efficiency that varies as a function of wavelength of the propagated light. Mode coupling efficiency may be higher for Raman spectrum, and lower for signal spectrum so that Raman spectrum associated with a fundamental mode is preferentially coupled into a higher-order mode. A fiber system may include a mode filter operable to discriminate between first and second guided modes. Within the filter, guiding of the first mode may be superior to that of the second mode with Raman spectrum preferentially rejected.
    Type: Application
    Filed: December 19, 2019
    Publication date: March 3, 2022
    Applicant: nLIGHT, Inc.
    Inventors: Tyson L. Lowder, Dahv A.V. Kliner, C. Geoffrey Fanning
  • Patent number: 9541679
    Abstract: An integrating volume for laser light homogenization includes a housing having an interior surface defining a light integrating cavity of a non-spherical configuration in the housing interior, an input port on the housing to allow entry of light from a laser beam through the input port into the light integrating cavity, and an output port on the housing and offset from the input port to allow sampling of light from the light integrating cavity through the output port after the light has reflected in the light integrating cavity between different portions of the interior surface of the housing so as to homogenize the light for sampling at the output port.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: January 10, 2017
    Assignee: nLIGHT, Inc.
    Inventors: Tyson L. Lowder, Joe Kollmann