Patents by Inventor Athanasios CHRYSSIS

Athanasios CHRYSSIS 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).

  • Aberration compensated diode-laser stack
    Patent number: 10539805
    Abstract: Optical output beams from a vertical stack of diode-laser bars are focused by a simple focusing lens on an optical axis of the lens. The optical output beams from outlying diode-laser bars in the vertical stack are tilted with respect to the optical axis of the focusing lens such that optical output from the whole vertical stack is brought to a common focus location on the optical axis of the focusing lens.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: January 21, 2020
    Assignee: Coherent, Inc.
    Inventors: Athanasios Chryssis, Geunmin Ryu, David Schleuning
  • Stackable electrically-isolated diode-laser bar assembly
    Patent number: 10297980
    Abstract: A diode-laser assembly having an electrically isolated diode-laser bar on a cooled base-element is disclosed. The diode-laser bar is electrically isolated from the base-element and electrically isolated from any coolant water, thereby eliminating the need for de-ionized water and mitigating corrosion due to galvanic action. Multiple such diode-laser assemblies are stackable, with small bar-to-bar pitch, enabling a high-current and high-brightness diode-laser stack.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: May 21, 2019
    Assignee: Coherent, Inc.
    Inventors: Geunmin Ryu, Athanasios Chryssis, David Schleuning
  • ABERRATION COMPENSATED DIODE-LASER STACK
    Publication number: 20170212355
    Abstract: Optical output beams from a vertical stack of diode-laser bars are focused by a simple focusing lens on an optical axis of the lens. The optical output beams from outlying diode-laser bars in the vertical stack are tilted with respect to the optical axis of the focusing lens such that optical output from the whole vertical stack is brought to a common focus location on the optical axis of the focusing lens.
    Type: Application
    Filed: January 25, 2017
    Publication date: July 27, 2017
    Inventors: Athanasios CHRYSSIS, Geunmin RYU, David SCHLEUNING
  • STACKABLE ELECTRICALLY-ISOLATED DIODE-LASER BAR ASSEMBLY
    Publication number: 20170179686
    Abstract: A diode-laser assembly having an electrically isolated diode-laser bar on a cooled base-element is disclosed. The diode-laser bar is electrically isolated from the base-element and electrically isolated from any coolant water, thereby eliminating the need for de-ionized water and mitigating corrosion due to galvanic action. Multiple such diode-laser assemblies are stackable, with small bar-to-bar pitch, enabling a high-current and high-brightness diode-laser stack.
    Type: Application
    Filed: December 13, 2016
    Publication date: June 22, 2017
    Inventors: Geunmin RYU, Athanasios CHRYSSIS, David SCHLEUNING
  • Macro channel water-cooled heat-sink for diode-laser bars
    Patent number: 9065238
    Abstract: A water-cooled heat-sink for a diode-laser bar includes a copper-cooling-unit having an integral mount thereon for the diode-laser bar. The copper-cooling-unit is attached to a steel base-unit. The base-unit and the cooling-unit are cooperatively configured such that at least one cooling-channel is formed in the cooling-unit by the attachment of the base-unit to the cooling-unit. The cooling-channel is positioned to cool the mount when cooling-water flows through the cooling-channel.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: June 23, 2015
    Assignee: Coherent, Inc.
    Inventors: David Schleuning, Athanasios Chryssis
  • Macro channel water-cooled heat-sink for diode-laser bars
    Patent number: 8804781
    Abstract: A diode-laser bar is mounted on water-cooled heat-sink between two ceramic sub-mounts for electrically isolating cooling-water in the heat-sink from the diode-laser bar. Mounting between the two ceramic sub-mounts also provides for balancing stresses due to differences in coefficient of thermal expansion (CTE) between the sub-mounts and the diode-laser bar. Both sub-mounts are in thermal communication with the heat-sink for providing two-sided cooling of the diode-laser bar.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: August 12, 2014
    Assignee: Coherent, Inc.
    Inventors: David Schleuning, Athanasios Chryssis
  • Macro-channel water-cooled heat-sink for diode-laser bars
    Patent number: 8804782
    Abstract: A water-cooled heat-sink for a diode-laser bar includes a copper-cooling-unit having an integral mount thereon for the diode-laser bar. The copper-cooling-unit is attached to a steel base-unit. The base-unit and the cooling-unit are cooperatively configured such that at least one cooling-channel is formed in the cooling-unit by the attachment of the base-unit to the cooling-unit. The cooling-channel is positioned to cool the mount when cooling-water flows through the cooling-channel.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: August 12, 2014
    Assignee: Coherent, Inc.
    Inventors: David Schleuning, Athanasios Chryssis
  • MACRO-CHANNEL WATER-COOLED HEAT-SINK FOR DIODE-LASER BARS
    Publication number: 20140169394
    Abstract: A water-cooled heat-sink for a diode-laser bar includes a copper-cooling-unit having an integral mount thereon for the diode-laser bar. The copper-cooling-unit is attached to a steel base-unit. The base-unit and the cooling-unit are cooperatively configured such that at least one cooling-channel is formed in the cooling-unit by the attachment of the base-unit to the cooling-unit. The cooling-channel is positioned to cool the mount when cooling-water flows through the cooling-channel.
    Type: Application
    Filed: February 20, 2014
    Publication date: June 19, 2014
    Applicant: Coherent, Inc.
    Inventors: David SCHLEUNING, Athanasios CHRYSSIS
  • MACRO-CHANNEL WATER-COOLED HEAT-SINK FOR DIODE-LASER BARS
    Publication number: 20140119394
    Abstract: A water-cooled heat-sink for a diode-laser bar includes a copper-cooling-unit having an integral mount thereon for the diode-laser bar. The copper-cooling-unit is attached to a steel base-unit. The base-unit and the cooling-unit are cooperatively configured such that at least one cooling-channel is formed in the cooling-unit by the attachment of the base-unit to the cooling-unit. The cooling-channel is positioned to cool the mount when cooling-water flows through the cooling-channel.
    Type: Application
    Filed: October 29, 2012
    Publication date: May 1, 2014
    Applicant: Coherent, Inc.
    Inventors: David SCHLEUNING, Athanasios CHRYSSIS
  • MACRO-CHANNEL WATER-COOLED HEAT-SINK FOR DIODE-LASER BARS
    Publication number: 20140119393
    Abstract: A diode-laser bar is mounted on water-cooled heat-sink between two ceramic sub-mounts for electrically isolating cooling-water in the heat-sink from the diode-laser bar. Mounting between the two ceramic sub-mounts also provides for balancing stresses due to differences in coefficient of thermal expansion (CTE) between the sub-mounts and the diode-laser bar. Both sub-mounts are in thermal communication with the heat-sink for providing two-sided cooling of the diode-laser bar.
    Type: Application
    Filed: October 29, 2012
    Publication date: May 1, 2014
    Applicant: COHERENT, INC.
    Inventors: David SCHLEUNING, Athanasios CHRYSSIS