Patents by Inventor Juan Carlos LUGO

Juan Carlos LUGO 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).

  • Patent number: 12360318
    Abstract: A capillary combiner housing for an optical fiber combiner has an inner combiner casing supporting optical fibers. The capillary combiner housing includes a non-metallic body defining a lumen between an input side and an output side, the lumen sized to receive the inner combiner casing, the non-metallic body having a coefficient of thermal expansion substantially matching that of the inner combiner casing. Also included is a first aperture in the input side, the first aperture having a first inside diameter sized to receive multiple input optical fibers, and a second aperture in the output side, the second aperture having a second inside diameter sized to receive an output fiber.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: July 15, 2025
    Assignee: nLIGHT, Inc.
    Inventor: Juan Carlos Lugo
  • Publication number: 20250076668
    Abstract: Disclosed are optical beam delivery devices and methods to produce, from a single-mode input beam having a fundamental mode and an M2 beam quality of about 1.5 or less, an output beam having an adjustable spatial intensity distribution that is adjustable between near Gaussian and ring-shaped profiles, the near Gaussian profile corresponding to an M2 beam quality of about 1.5 or less. A first length of optical fiber is for adjusting the single-mode input beam to generate an adjustable beam based on controllable perturbation applied to the first length of optical fiber. A second length of optical fiber is for coupling the adjustable beam into one or both a central core confinement region and an annular higher-index confinement region. The second length of optical fiber is configured to provide at its output the output beam having the adjustable spatial intensity distribution.
    Type: Application
    Filed: September 30, 2022
    Publication date: March 6, 2025
    Inventors: Roger L. Farrow, Dahv A.V. Kliner, Juan Carlos LUGO, Brendan G. O'DEA
  • Publication number: 20250035871
    Abstract: Disclosed are optical beam delivery devices and methods to modify an angular intensity distribution of an input beam so that it is converted to an output beam having an adjustable near-field transverse spatial intensity distribution. In some embodiments, adjustment of the angular intensity distribution is achieved by increasing an angular offset in response to controllable perturbation. In some other embodiments, adjustment of the angular intensity distribution is achieved by increasing an angular width (divergence) in response to controllable perturbation.
    Type: Application
    Filed: November 23, 2022
    Publication date: January 30, 2025
    Inventors: Roger L. Farrow, Dahv A.V. Kliner, Juan Carlos LUGO, Brendan G. O'DEA
  • Publication number: 20240393580
    Abstract: A fused fiber combiner combines outputs from multiple, separately controllable input fibers. At least one of the input fibers includes a portion to vary a transverse spatial intensity distribution in response to controllable perturbation, a portion to convert position to angle, and a portion to preserve the divergence distribution. An output of the combiner is coupled to a divergence-preserving fiber, which preserves a combined divergence distribution guided by the divergence-preserving fiber. An output GRIN lens maps the combined divergence distribution to an output transverse spatial intensity distribution defining a composite beam shape of an output beam, the output transverse spatial intensity distribution representing a superposition of individual channel output beams.
    Type: Application
    Filed: May 22, 2024
    Publication date: November 28, 2024
    Inventors: Brendan G. O'DEA, Roger L. Farrow, Juan Carlos LUGO, Brian M. VICTOR, Dahv A.V. Kliner
  • Publication number: 20240396283
    Abstract: A method of generating adjustable composite beam shapes in response to controllable perturbation includes receiving, via inputs of multiple input fibers, different laser beams, combining the outputs from the multiple input fibers into a divergence-preserving fiber that preserves a combined divergence distribution of the intermediate beams; and converting at an output lens the combined divergence distribution to an output transverse spatial intensity distribution defining a composite beam shape of an output beam. The output transverse spatial intensity distribution includes a superposition of individual channel output beams.
    Type: Application
    Filed: May 22, 2024
    Publication date: November 28, 2024
    Inventors: Brendan G. O'DEA, Roger L. Farrow, Juan Carlos LUGO, Brian M. VICTOR, Dahv A.V. Kliner
  • Patent number: 11831121
    Abstract: Some embodiments may include a fiber laser including two or more input fibers and an output fiber to deliver a beam to a workpiece, the fiber laser comprising. The fiber laser may include a combiner having ends and a length, wherein the combiner is arranged to release, from its length, a portion of back-reflected light received from the output fiber at an output end of the ends from the combiner, the combiner including: a capillary tube to enclose part of the two or more input fibers at an input end of the ends of the combiner, the capillary tube having ends and a length located between the ends of the capillary tube; and a cladding light stripper (CLS) defined by part of the length of the capillary tube, wherein the CLS provides the release of the portion of the back-reflected light. Other embodiments may be disclosed and/or claimed.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: November 28, 2023
    Assignee: NLIGHT, INC.
    Inventors: Juan Carlos Lugo, Teemu Kokki, Roger Farrow, Dahv A. V. Kliner
  • Publication number: 20230258869
    Abstract: A capillary combiner housing for an optical fiber combiner has an inner combiner casing supporting optical fibers. The capillary combiner housing includes a non-metallic body defining a lumen between an input side and an output side, the lumen sized to receive the inner combiner casing, the non-metallic body having a coefficient of thermal expansion substantially matching that of the inner combiner casing. Also included is a first aperture in the input side, the first aperture having a first inside diameter sized to receive multiple input optical fibers, and a second aperture in the output side, the second aperture having a second inside diameter sized to receive an output fiber.
    Type: Application
    Filed: July 14, 2021
    Publication date: August 17, 2023
    Inventor: Juan Carlos Lugo
  • Publication number: 20230036091
    Abstract: Some embodiments may include a fiber laser including two or more input fibers and an output fiber to deliver a beam to a workpiece, the fiber laser comprising. The fiber laser may include a combiner having ends and a length, wherein the combiner is arranged to release, from its length, a portion of back-reflected light received from the output fiber at an output end of the ends from the combiner, the combiner including: a capillary tube to enclose part of the two or more input fibers at an input end of the ends of the combiner, the capillary tube having ends and a length located between the ends of the capillary tube; and a cladding light stripper (CLS) defined by part of the length of the capillary tube, wherein the CLS provides the release of the portion of the back-reflected light. Other embodiments may be disclosed and/or claimed.
    Type: Application
    Filed: January 28, 2021
    Publication date: February 2, 2023
    Applicant: NLIGHT, INC.
    Inventors: Juan Carlos LUGO, Teemu KOKKI, Roger FARROW, Dahv A.V. KLINER