Patents by Inventor Edward D. Reed, Jr.

Edward D. Reed, Jr. 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: 9531148
    Abstract: A laser resonator comprises a cylindrical gain medium, a cooling system and a coupling member. The cylindrical gain medium comprises a central axis, an outer side surface, two opposing end faces and a first depression in the outer side surface. The cooling system comprises a cooling jacket disposed around the gain medium that defines a cooling cavity, in which cooling fluid is guided over the side surface of the gain medium. In one embodiment, the cooling jacket comprises a second depression. The coupling member is received within the first and second depressions. Movement of the first depression along the central axis relative to the cooling jacket is restricted by the coupling member.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: December 27, 2016
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Rongwei Jason Xuan, Russel E. Klein, Michael A. Scott, James E. Johnson, Edward D. Reed, Jr., Xirong Yang
  • Publication number: 20150071317
    Abstract: In a method of stabilizing pump energy, a gain medium is provided having an absorption coefficient that varies with wavelength. An absorption coefficient curve of the absorption coefficient or a range of wavelengths comprises peaks and valleys. Pump energy is generated at an operating wavelength within one of the valleys, at which the absorption coefficient is approximately at a minimum. The pump energy is transmitted through the gain medium. A portion of the pump energy is absorbed with the gain medium and laser light is emitted from the gain medium responsive to the absorbed pump energy. The non-absorbed pump energy (feedback pump energy) is fed back to the pump module. The operating wavelength of the pump energy is stabilized using the feedback pump energy.
    Type: Application
    Filed: November 4, 2014
    Publication date: March 12, 2015
    Inventors: Edward D. Reed, JR., Raymond Adam Nemeyer
  • Patent number: 8897326
    Abstract: In a method, a gain medium is provided having an absorption coefficient that varies with wavelength. An absorption coefficient curve of the absorption coefficient or a range of wavelengths comprises peaks and valleys. A pump module is operated to output pump energy at an operating wavelength within one of the valleys, at which the absorption coefficient is approximately less than 40% of the absorption coefficient at an adjacent peak of the absorption coefficient curve defining the valley. The pump energy is directed through the gain medium. A portion of the pump energy is absorbed with the gain medium and laser light is emitted from the gain medium responsive to the absorbed pump energy. The non-absorbed pump energy (feedback pump energy) is fed back to the pump module. The operating wavelength of the pump energy is stabilized using the feedback pump energy.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: November 25, 2014
    Assignee: AMS Research Corporation
    Inventors: Edward D. Reed, Jr., Raymond Adam Nemeyer
  • Publication number: 20110158271
    Abstract: A laser resonator comprises a cylindrical gain medium, a cooling system and a coupling member. The cylindrical gain medium comprises a central axis, an outer side surface, two opposing end faces and a first depression in the outer side surface. The cooling system comprises a cooling jacket disposed around the gain medium that defines a cooling cavity, in which cooling fluid is guided over the side surface of the gain medium. In one embodiment, the cooling jacket comprises a second depression. The coupling member is received within the first and second depressions. Movement of the first depression along the central axis relative to the cooling jacket is restricted by the coupling member.
    Type: Application
    Filed: December 28, 2010
    Publication date: June 30, 2011
    Applicant: AMS RESEARCH CORPORATION
    Inventors: Rongwei Jason Xuan, Russel E. Klein, Michael A. Scott, James E. Johnson, Edward D. Reed, JR., Xirong Yang
  • Publication number: 20100061412
    Abstract: In a method, a gain medium is provided having an absorption coefficient that varies with wavelength. An absorption coefficient curve of the absorption coefficient or a range of wavelengths comprises peaks and valleys. A pump module is operated to output pump energy at an operating wavelength within one of the valleys, at which the absorption coefficient is approximately less than 40% of the absorption coefficient at an adjacent peak of the absorption to coefficient curve defining the valley. The pump energy is directed through the gain medium. A portion of the pump energy is absorbed with the gain medium and laser light is emitted from the gain medium responsive to the absorbed pump energy. The non-absorbed pump energy (feedback pump energy) is fed back to the pump module. The operating wavelength of the pump energy is stabilized using the feedback pump energy.
    Type: Application
    Filed: September 8, 2009
    Publication date: March 11, 2010
    Applicant: AMS RESEARCH CORPORATION
    Inventors: Edward D. Reed, JR., Raymond Adam Nemeyer
  • Patent number: 5254114
    Abstract: A medical laser delivery system is disclosed which includes a laser generating a high power, pulsed, treatment beam. The beam is coupled to an optical fiber which is placed adjacent to a tissue site immersed in a fluid medium. The wavelength of the laser light and the energy of the pulses is selected so that the fluid medium will be quickly vaporized creating a vapor bubble around the end of the fiber. The end surface of the fiber is angled in a manner such that after the vapor bubble is formed, the laser output will be totally internally reflected at the end surface and be redirected out of the side of the fiber.
    Type: Grant
    Filed: August 14, 1991
    Date of Patent: October 19, 1993
    Assignee: Coherent, Inc.
    Inventors: Edward D. Reed, Jr., James R. Kermode, Dennis C. Frezzo
  • Patent number: 4598405
    Abstract: Laser apparatus with an electro-optic Q-switch assembly comprises a lasing medium which produces an unpolarized light beam when pumped, a polarizing beam splitter dividing the unpolarized beam into two orthogonally polarized parallel sub-beams, and a totally reflecting turning element which returns each sub-beam to the beam splitter along the path of the other sub-beam. A Q-switch is located in the path of one of the sub-beams. When the Q-switch is energized, the reflected polarization-shifted sub-beams are recombined at the splitter and pass through the lasing medium and adjacent partially-reflecting element as the output. When the Q-switch is deenergized, the sub-beams are dumped at the splitter which prevents the laser from oscillating.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: July 1, 1986
    Assignee: GTE Communication Products Corporation
    Inventors: Edward D. Reed, Jr., George J. Benedict
  • Patent number: 4553244
    Abstract: The annular energy distribution in the output beam of a laser having an unstable resonator is evenly distributed across the entire beam profile by a synthesizer comprising a pair of mirrors adjacent to the output end of the resonator and operative on the output beam to redirect part of the beam from the annular outer portion to the energy-vacant central portion. One of the pair of mirrors is partially optically transmissive and concavely shaped and is disposed to reflect and converge part of the outer beam portion toward the other mirror and to transmit the balance. The other mirror is highly reflective and convexly shaped and is disposed to redirect and collimate the reflected beam part within the central portion toward the concave mirror parallel to the outer beam portion.
    Type: Grant
    Filed: April 25, 1984
    Date of Patent: November 12, 1985
    Assignee: GTE Communications Products Corporation
    Inventors: George J. Benedict, Edward D. Reed, Jr., Robert W. Jones