Patents by Inventor Marc Farrell Harris

Marc Farrell Harris 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).

  • Fabrication of collimators employing optical fibers fusion-spliced to optical elements of substantially larger cross-section areas
    Patent number: 6780274
    Abstract: A fiber collimator is provided, comprising at least two optical components, one of the optical components (e.g., an optical element such as a collimating lens or a plano-plano pellet) having a surface that has a comparatively larger cross-sectional area than the surface of the other optical component(s) (e.g., at least one optical fiber). The optical components are joined together by fusion-splicing, using a laser. A gradient in the index of refraction is provided in at least that portion of the surface of the optical element to which the optical fiber(s) is fusion-spliced or at the tip of the optical fiber. The gradient is either formed prior to or during the fusion-splicing. Back-reflection is minimized, pointing accuracy is improved, and power handling ability is increased.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: August 24, 2004
    Assignee: Lightpath Technologies, Inc.
    Inventors: Pierre Bernard, Mark A. Fitch, Paul Fournier, Marc Farrell Harris, William P. Walters
  • Fabrication of collimators employing optical fibers fusion-spliced to optical elements of substantially larger cross-sectional areas
    Patent number: 6758935
    Abstract: A fiber collimator is provided, comprising at least two optical components, one of the optical components (e.g., an optical element such as a collimating lens or a plano—plano pellet) having a surface that has a comparatively larger cross-sectional area than the surface of the other optical component(s) (e.g., at least one optical fiber). The optical components are joined together by fusion-splicing, using a laser. A gradient in the index of refraction is provided in at least that portion of the surface of the optical element to which the optical fiber(s) is fusion-spliced or at the tip of the optical fiber. The gradient is either formed prior to or during the fusion-splicing. Back-reflection is minimized, pointing accuracy is improved, and power handling ability is increased.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: July 6, 2004
    Inventors: Pierre Bernard, Mark A. Fitch, Paul Fournier, Marc Farrell Harris, William P. Walters
  • Fabrication of collimators employing optical fibers fusion-spliced to optical elements of substantially larger cross-sectional areas
    Publication number: 20020054735
    Abstract: A fiber collimator is provided, comprising at least two optical components, one of the optical components (e.g., an optical element such as a collimating lens or a plano-plano pellet) having a surface that has a comparatively larger cross-sectional area than the surface of the other optical component(s) (e.g., at least one optical fiber). The optical components are joined together by fusion-splicing, using a laser. A gradient in the index of refraction is provided in at least that portion of the surface of the optical element to which the optical fiber(s) is fusion-spliced or at the tip of the optical fiber. The gradient is either formed prior to or during the fusion-splicing. Back-reflection is minimized, pointing accuracy is improved, and power handling ability is increased.
    Type: Application
    Filed: November 13, 2001
    Publication date: May 9, 2002
    Inventors: Pierre Bernard, Mark A. Fitch, Paul Fournier, Marc Farrell Harris, William P. Walters
  • Fabrication of collimators employing optical fibers fusion-spliced to optical elements of substantially larger cross-sectional areas
    Publication number: 20020041742
    Abstract: A fiber collimator is provided, comprising at least two optical components, one of the optical components (e.g., an optical element such as a collimating lens or a plano-plano pellet) having a surface that has a comparatively larger cross-sectional area than the surface of the other optical component(s) (e.g., at least one optical fiber). The optical components are joined together by fusion-splicing, using a laser. A gradient in the index of refraction is provided in at least that portion of the surface of the optical element to which the optical fiber(s) is fusion-spliced or at the tip of the optical fiber. The gradient is either formed prior to or during the fusion-splicing. Back-reflection is minimized, pointing accuracy is improved, and power handling ability is increased.
    Type: Application
    Filed: November 13, 2001
    Publication date: April 11, 2002
    Inventors: Pierre Bernard, Mark A. Fitch, Paul Fournier, Marc Farrell Harris, William P. Walters
  • Fabrication of collimators employing optical fibers fusion-spliced to optical elements of substantially larger cross-sectional areas
    Patent number: 6360039
    Abstract: A fiber collimator is provided, comprising at least two optical components, one of the optical components (e.g., an optical element such as a collimating lens or a plano-plano pellet) having a surface that has a comparatively larger cross-sectional area than the surface of the other optical component(s) (e.g., at least one optical fiber). The optical components are joined together by fusion-splicing, using a laser. A gradient in the index of refraction is provided in at least that portion of the surface of the optical element to which the optical fiber(s) is fusion-spliced or at the tip of the optical fiber. The gradient is either formed prior to or during the fusion-splicing. Back-reflection is minimized, pointing accuracy is improved, and power handling ability is increased.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: March 19, 2002
    Assignee: LightPath Technologies, Inc.
    Inventors: Pierre Bernard, Mark A. Fitch, Paul Fournier, Marc Farrell Harris, William P. Walters
  • Use of a laser to fusion-splice optical components of substantially different cross-sectional areas
    Patent number: 6352376
    Abstract: A method is provided for fusion-splicing with a laser beam two optical components, one of the optical components (e.g., an optical element such as a lens) having a surface that has a comparatively larger cross-sectional area than a surface of the other optical component (e.g., an optical fiber).
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: March 5, 2002
    Assignee: LightPatch Technologies, Inc.
    Inventors: William P. Walters, Mark A. Fitch, Paul Fournier, Marc Farrell Harris, Pierre Bernard
  • USE OF A LASER TO FUSION-SPLICE OPTICAL COMPONENTS OF SUBSTANTIALLY DIFFERENT CROSS-SECTIONAL AREAS
    Publication number: 20010014198
    Abstract: A method is provided for fusion-splicing with a laser beam two optical components, one of the optical components (e.g., an optical element such as a lens) having a surface that has a comparatively larger cross-sectional area than a surface of the other optical component (e.g., an optical fiber).
    Type: Application
    Filed: November 29, 1999
    Publication date: August 16, 2001
    Applicant: LIGHTPATH TECHNOLOGIES, INC.
    Inventors: WILLIAM P. WALTERS, MARK A. FITCH, PAUL FOURNIER, MARC FARRELL HARRIS, PIERRE BERNARD
  • Use of a laser to fusion-splice optical components of substantially different cross-sectional areas
    Patent number: 6217698
    Abstract: A method is provided for fusion-splicing with a laser beam at least two optical components to a different optical component, the different optical component (e.g., an optical element such as a lens) having a surface that has a comparatively larger cross-sectional area than a surface of the other optical components (e.g., at least two optical fibers).
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: April 17, 2001
    Assignee: LightPath Technologies, Inc.
    Inventors: William P. Walters, Mark A. Fitch, Paul Fournier, Marc Farrell Harris, Pierre Bernard
  • Use of a laser to fusion-splice optical components of substantially different cross-sectional areas
    Patent number: 6033515
    Abstract: A method is provided for fusion-splicing with a laser beam two optical components, one of the optical components (e.g., an optical element such as a lens) having a surface that has a comparatively larger cross-sectional area than a surface of the other optical component (e.g., an optical fiber).
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: March 7, 2000
    Assignee: LightPath Technologies, Inc.
    Inventors: William P. Walters, Mark A. Fitch, Paul Fournier, Marc Farrell Harris, Pierre Bernard