Patents by Inventor Aram Mooradian

Aram Mooradian 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: 7357513
    Abstract: A light engine includes a multi-color laser source having a set of semiconductor lasers. A controller synchronizes the operation of the laser source to operate in a color sequential order with a spatial modulator.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: April 15, 2008
    Assignee: Novalux, Inc.
    Inventors: Jason P. Watson, Aram Mooradian, Andrei V. Shchegrov
  • Patent number: 7359420
    Abstract: Arrays of vertical extended cavity surface emitting lasers (VECSELs) are disclosed. The functionality of two or more conventional optical components are combined into an optical unit to reduce the number of components that must be aligned during packaging. A dichroic beamsplitter selectively couples frequency doubled light out of the cavity. In one implementation the dichroic beamsplitter includes at least one prism.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: April 15, 2008
    Assignee: Arasor Corporation
    Inventors: Andrei V. Shchegrov, Jason P. Watson, Dicky Lee, Arvydas Umbrasas, Rene Dato, John Green, Michael Jansen, Aram Mooradian
  • Patent number: 7315560
    Abstract: An array of surface emitting laser diodes has a series electrical connection of laser diodes. Junction isolation is used to isolate laser diodes in the array.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: January 1, 2008
    Assignee: Novalux, Inc.
    Inventors: Alan Lewis, Brad Cantos, Glen P. Carey, William R. Hitchens, Jason P. Watson, Aram Mooradian
  • Patent number: 7296897
    Abstract: In an apparatus, system, and method for generating a projected display, a light source generates red, green, and blue light using arrays of extended cavity surface emitting semiconductor lasers. The beams of individual lasers overlap and have a distribution of optical attributes selected to reduce speckle on a display surface.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: November 20, 2007
    Assignee: Novalux, Inc.
    Inventors: Aram Mooradian, Andrei V. Shchegrov, Jason P. Watson
  • Publication number: 20070153866
    Abstract: Arrays of vertical extended cavity surface emitting lasers (VECSELs) are disclosed. The functionality of two or more conventional optical components are combined into an optical unit to reduce the number of components that must be aligned during packaging.
    Type: Application
    Filed: December 18, 2006
    Publication date: July 5, 2007
    Inventors: Andrei Shchegrov, Jason Watson, Dicky Lee, Arvydas Umbrasas, Rene Dato, John Green, Michael Jansen, Aram Mooradian
  • Publication number: 20070153862
    Abstract: Arrays of vertical extended cavity surface emitting lasers (VECSELs) are disclosed. The functionality of two or more conventional optical components are combined into an optical unit to reduce the number of components that must be aligned during packaging. A dichroic beamsplitter selectively couples frequency doubled light out of the cavity. In one implementation the dichroic beamsplitter includes at least one prism.
    Type: Application
    Filed: September 25, 2006
    Publication date: July 5, 2007
    Inventors: Andrei SHCHEGROV, Jason WATSON, Dicky LEE, Arvydas UMBRASAS, Rene DATO, John GREEN, Michael Jansen, Aram MOORADIAN
  • Publication number: 20070147458
    Abstract: Arrays of surface emitting lasers are disclosed. A top contact plate is patterned with apertures and used to form an electrical connection to a top surface of a laser die. The top contact plate reduces electrical resistance and improves current uniformity compared with conventional contacts formed by plating.
    Type: Application
    Filed: June 9, 2006
    Publication date: June 28, 2007
    Applicant: Novalux, Inc.
    Inventors: Jason Watson, Andrei Shchegrov, Aram Mooradian, Kenneth Scholz, William Hitchens, Brad Cantos, John Green
  • Patent number: 7189589
    Abstract: A method of fabricating a semiconductor device is described. In this method, a starting substrate of sufficient thickness is selected that has the required defect density levels, which may result in an undesirable doping level. Then a semiconductor layer having a desired doping level is formed on the starting substrate. The resulting semiconductor layer has the required defect density and doping levels for the final product application. After active components, electrical conductors, and any other needed structures are formed on the semiconductor layer, the starting substrate is removed leaving a desired thickness of the semiconductor layer. In a VECSEL application, the active components can be a gain cavity, where the semiconductor layer has the necessary defect density and doping levels to maximize wall plug efficiency (WPE). In one embodiment, the doping of the semiconductor layer is not uniform. For example, a majority of the layer is doped at a low level and the remainder is doped at a much higher level.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: March 13, 2007
    Assignee: Novalux, Inc.
    Inventors: Glen Phillip Carey, Ian Jenks, Alan Lewis, René Lujan, Hailong Zhou, Jacy R. Titus, Gideon W. Yoffe, Mark A. Emanuel, Aram Mooradian
  • Publication number: 20060268241
    Abstract: A light engine includes a multi-color laser source having a set of semiconductor lasers. A controller synchronizes the operation of the laser source to operate in a color sequential order with a spatial modulator.
    Type: Application
    Filed: March 30, 2006
    Publication date: November 30, 2006
    Inventors: Jason Watson, Aram Mooradian, Andrei Shchegrov
  • Publication number: 20060109883
    Abstract: An array of surface emitting laser diodes has a series electrical connection of laser diodes. Junction isolation is used to isolate laser diodes in the array.
    Type: Application
    Filed: July 29, 2005
    Publication date: May 25, 2006
    Inventors: Alan Lewis, Brad Cantos, Glen Carey, William Hitchens, Jason Watson, Aram Mooradian
  • Publication number: 20060029120
    Abstract: An active gain region sandwiched between a 100% reflective bottom Bragg mirror and an intermediate partially reflecting Bragg mirror is formed on a lower surface of a supporting substrate, to thereby provide the first (“active”) resonator cavity of a high power coupled cavity surface emitting laser device. The reflectivity of the intermediate mirror is kept low enough so that laser oscillation within the active gain region will not occur. The substrate is entirely outside the active cavity but is contained within a second (“passive”) resonator cavity defined by the intermediate mirror and a partially reflecting output mirror, where it is subjected to only a fraction of the light intensity that is circulating in the gain region.
    Type: Application
    Filed: May 23, 2005
    Publication date: February 9, 2006
    Applicant: Novalux Inc.
    Inventors: Aram Mooradian, Andrei Shchegrov, Sergei Anikitchev
  • Publication number: 20060023173
    Abstract: An apparatus, system, and method for generating a projected display is disclosed. A light source generates red, green, and blue light using arrays of extended cavity surface emitting semiconductor lasers. The beams of individual lasers overlap and have a distribution of optical attributes selected to reduce speckle on a display surface.
    Type: Application
    Filed: July 29, 2005
    Publication date: February 2, 2006
    Inventors: Aram Mooradian, Andrei Shchegrov, Jason Watson
  • Publication number: 20060023757
    Abstract: A mode-locked laser with intracavity frequency conversion is disclosed. In one embodiment the conversion frequency is improved by reducing the temporal, spatial, or polarization overlap between pulses at the fundamental frequency and pulses at a frequency-shifted frequency.
    Type: Application
    Filed: July 29, 2005
    Publication date: February 2, 2006
    Inventors: Aram Mooradian, Andrei Shchegrov, Jason Watson
  • Patent number: 6898225
    Abstract: An active gain region sandwiched between a 100% reflective bottom Bragg mirror and an intermediate partially reflecting Bragg mirror is formed on a lower surface of a supporting substrate, to thereby provide the first (“active”) resonator cavity of a high power coupled cavity surface emitting laser device. The bottom mirror is preferably in direct thermal contact with an external heat sink for maximum heat removal effectiveness. The reflectivity of the intermediate mirror is kept low enough so that laser oscillation within the active gain region will not occur. The substrate is entirely outside the active cavity but is contained within a second (“passive”) resonator cavity defined by the intermediate mirror and a partially reflecting output mirror, where it is subjected to only a fraction of the light intensity that is circulating in the gain region.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: May 24, 2005
    Assignee: Novalux, Inc.
    Inventor: Aram Mooradian
  • Publication number: 20050002433
    Abstract: An active gain region sandwiched between a 100% reflective bottom Bragg mirror and an intermediate partially reflecting Bragg mirror is formed on a lower surface of a supporting substrate, to thereby provide the first (“active”) resonator cavity of a high power coupled cavity surface emitting laser device. The bottom mirror is preferably in direct thermal contact with an external heat sink for maximum heat removal effectiveness. The reflectivity of the intermediate mirror is kept low enough so that laser oscillation within the active gain region will not occur. The substrate is entirely outside the active cavity but is contained within a second (“passive”) resonator cavity defined by the intermediate mirror and a partially reflecting output mirror, where it is subjected to only a fraction of the light intensity that is circulating in the gain region.
    Type: Application
    Filed: July 26, 2004
    Publication date: January 6, 2005
    Inventor: Aram Mooradian
  • Patent number: 6778582
    Abstract: An active gain region sandwiched between a 100% reflective bottom. Bragg mirror and an intermediate partially reflecting Bragg mirror is formed on a lower surface of a supporting substrate, to thereby provide the first (“active”) resonator cavity of a high power coupled cavity surface emitting laser device. The bottom mirror is preferably in direct thermal contact with an external heat sink for maximum heat removal effectiveness. The reflectivity of the intermediate mirror is kept low enough so that laser oscillation within the active gain region will not occur. The substrate is entirely outside the first active resonator cavity to a level sufficient to cause lasing. The substrate is entirely outside the active cavity but is contained within a second (“passive”) resonator cavity defined by the intermediate mirror and a partially reflecting output mirror, where it is subjected to only a fraction of the light intensity that is circulating in the gain region.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: August 17, 2004
    Assignee: Novalux, Inc.
    Inventor: Aram Mooradian
  • Patent number: 6614827
    Abstract: In an apparatus and method for generating high power laser radiation, the geometry of the resonant laser cavity defines a fundamental spatial or transverse cavity mode. A gain medium is disposed within the resonant cavity and an energy source energizes the gain medium within a first volume. This causes spontaneous and stimulated energy emission to propagate in the gain medium in a direction transverse to the fundamental cavity mode. The transverse emission in turn optically pumps a second volume of the gain medium about the first volume. When the intensity of the transverse emission is sufficiently high, inversion and gain are produced in the second volume. By optimizing the geometry of the cavity such that the fundamental cavity mode is coupled to both the first and the second volumes encompassing the first pumped volume, the transversely-directed energy of the first volume which would otherwise be wasted is instead captured by the fundamental beam, improving the overall power efficiently of the laser.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: September 2, 2003
    Assignee: Novalux, Inc.
    Inventor: Aram Mooradian
  • Publication number: 20020176473
    Abstract: A wavelength selectable, controlled chirp, semiconductor laser system is provided. By coupling a passive cavity, including an external output mirror with a selected reflectivity, to the active cavity of a laser device, chirp is reduced by approximately the ratio of the length of the active cavity to the length of the passive cavity. In such a device, changing the length of the passive cavity by manipulating the position of the output mirror allows for selecting an output wavelength of the laser device.
    Type: Application
    Filed: May 23, 2001
    Publication date: November 28, 2002
    Inventor: Aram Mooradian
  • Patent number: 6404797
    Abstract: In an apparatus and method for generating high power laser radiation, the geometry of the resonant laser cavity defines a fundamental spatial or transverse cavity mode. A gain medium is disposed within the resonant cavity and an energy source energizes the gain medium within a first volume. This causes spontaneous and stimulated energy emission to propagate in the gain medium in a direction transverse to the fundamental cavity mode. The transverse emission in turn optically pumps a second volume of the gain medium about the first volume. When the intensity of the transverse emission is sufficiently high, inversion and gain are produced in the second volume. By optimizing the geometry of the cavity such that the fundamental cavity mode is coupled to both the first and the second volumes encompassing the first pumped volume, the transversely-directed energy of the first volume which would otherwise be wasted is instead captured by the fundamental beam, improving the overall power efficiently of the laser.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: June 11, 2002
    Assignee: Novalux, Inc.
    Inventor: Aram Mooradian
  • Patent number: 6243407
    Abstract: In an apparatus and method for generating high power laser radiation, the geometry of the resonant laser cavity defines a fundamental spatial or transverse cavity mode. A gain medium is disposed within the resonant cavity and an energy source energizes the gain medium within a first volume. This causes spontaneous and stimulated energy emission to propagate in the gain medium in a direction transverse to the fundamental cavity mode. The transverse emission in turn optically pumps a second volume of the gain medium about the first volume. When the intensity of the emission is sufficiently high, inversion and gain are produced in the second volume. By optimizing the geometry of the cavity such that the fundamental cavity mode is coupled to both the first and the second volumes encompassing the first pumped volume, the transversely-directed energy of the first volume which would otherwise be wasted is instead captured by the fundamental beam, improving the overall power efficiently of the laser.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: June 5, 2001
    Assignee: Novalux, Inc.
    Inventor: Aram Mooradian