Patents by Inventor Jay B. Kirk
Jay B. Kirk 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).
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Patent number: 10620378Abstract: The present invention includes an optical waveguide with a grating and a method of making the same for increasing the effectiveness of the grating. In one example, the grating is at least partially covered by a liner layer disposed on at least a portion of a grating; and a cover layer disposed on the liner layer, wherein a first material selected for the core and ridges and a second material selected for the liner layer are selected to provide a difference in the index of refraction between the first and second material that is sufficient to provide a contrast therebetween.Type: GrantFiled: July 25, 2019Date of Patent: April 14, 2020Assignees: Southern Methodist University, Oracle International CorporationInventors: Gary A. Evans, Jerome K. Butler, Jay B. Kirk, Ruo-Hua He, Jin Yao, Guoliang Li, Xuezhe Zheng, Ashok V. Krishnamoorthy
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Patent number: 10620379Abstract: The present invention includes an optical waveguide with a grating and a method of making the same for increasing the effectiveness of the grating. In one example, the grating is at least partially covered by a liner layer disposed on at least a portion of a grating; and a cover layer disposed on the liner layer, wherein a first material selected for the core and ridges and a second material selected for the liner layer are selected to provide a difference in the index of refraction between the first and second material that is sufficient to provide a contrast therebetween.Type: GrantFiled: July 26, 2019Date of Patent: April 14, 2020Assignees: Southern Methodist University, Oracle International CorporationInventors: Gary A. Evans, Jerome K. Butler, Jay B. Kirk, Ruo-Hua He, Jin Yao, Guoliang Li, Xuezhe Zheng, Ashok V. Krishnamoorthy
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Publication number: 20190353846Abstract: The present invention includes an optical waveguide with a grating and a method of making the same for increasing the effectiveness of the grating. In one example, the grating is at least partially covered by a liner layer disposed on at least a portion of a grating; and a cover layer disposed on the liner layer, wherein a first material selected for the core and ridges and a second material selected for the liner layer are selected to provide a difference in the index of refraction between the first and second material that is sufficient to provide a contrast therebetween.Type: ApplicationFiled: July 25, 2019Publication date: November 21, 2019Inventors: Gary A. Evans, Jerome K. Butler, Jay B. Kirk, Ruo-Hua He, Jin Yao, Guoliang Li, Xuezhe Zheng, Ashok V. Krishnamoorthy
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Publication number: 20190353847Abstract: The present invention includes an optical waveguide with a grating and a method of making the same for increasing the effectiveness of the grating. In one example, the grating is at least partially covered by a liner layer disposed on at least a portion of a grating; and a cover layer disposed on the liner layer, wherein a first material selected for the core and ridges and a second material selected for the liner layer are selected to provide a difference in the index of refraction between the first and second material that is sufficient to provide a contrast therebetween.Type: ApplicationFiled: July 26, 2019Publication date: November 21, 2019Inventors: Gary A. Evans, Jerome K. Butler, Jay B. Kirk, Ruo-Hua He, Jin Yao, Guoliang Li, Xuezhe Zheng, Ashok V. Krishnamoorthy
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Patent number: 10371898Abstract: The present invention includes an optical waveguide with a grating and a method of making the same for increasing the effectiveness of the grating. In one example, the grating is at least partially covered by a liner layer disposed on at least a portion of a grating; and a cover layer disposed on the liner layer, wherein a first material selected for the core and ridges and a second material selected for the liner layer are selected to provide a difference in the index of refraction between the first and second material that is sufficient to provide a contrast therebetween.Type: GrantFiled: September 5, 2014Date of Patent: August 6, 2019Assignee: Southern Methodist UniversityInventors: Gary A. Evans, Jerome K. Butler, Jay B. Kirk, Ruo-Hua He, Jin Yao, Guoliang Li, Xuezhe Zheng, Ashok V. Krishnamoorthy
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Publication number: 20150063753Abstract: The present invention includes an optical waveguide with a grating and a method of making the same for increasing the effectiveness of the grating. In one example, the grating is at least partially covered by a liner layer disposed on at least a portion of a grating; and a cover layer disposed on the liner layer, wherein a first material selected for the core and ridges and a second material selected for the liner layer are selected to provide a difference in the index of refraction between the first and second material that is sufficient to provide a contrast therebetween.Type: ApplicationFiled: September 5, 2014Publication date: March 5, 2015Inventors: Gary A. Evans, Jerome K. Butler, Jay B. Kirk, Ruo-Hua He, Jin Yao, Guoliang Li, Xuezhe Zheng, Ashok V. Krishnamoorthy
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Patent number: 7450624Abstract: Laser diodes are formed with an outcoupling grating between two separate distributed Bragg reflectors. The devices have gain regions located between the reflector gratings for pumping the active region. The outcoupling grating couples light out of the waveguide normal to the surface if the grating spacings are equal to an integer number of wavelengths of the light within the cavity. If the gratings are not such an integer number, the light is coupled out of the cavity off the normal.Type: GrantFiled: November 8, 2005Date of Patent: November 11, 2008Assignee: Photodigm, Inc.Inventors: Gary A. Evans, Jay B. Kirk, Jacob Meyer Hammer
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Patent number: 6963597Abstract: Laser diodes are formed with an outcoupling grating between two separate distributed Bragg reflectors. The devices have gain regions located between the reflector gratings for pumping the active region. The outcoupling grating couples light out of the waveguide normal to the surface if the grating spacings are equal to an integer number of wavelengths of the light within the cavity. If the gratings are not such an integer number, the light is coupled out of the cavity off the normal.Type: GrantFiled: April 27, 2001Date of Patent: November 8, 2005Assignee: Photodigm, Inc.Inventors: Gary A. Evans, Jay B. Kirk, Jacob Meyer Hammer
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Patent number: 6853666Abstract: An electronic/photonic integrated circuit in which grating-outcoupled surface-emitting lasers are used both to provide external emission out of the plane of the chip (through gratings), and also to feed optical power into photonic waveguides parallel to the plane of the chip. Transistors are fabricated in a common multilayer semiconductor body with the lasers.Type: GrantFiled: November 22, 2002Date of Patent: February 8, 2005Assignee: Photodigm, Inc.Inventors: Gary A. Evans, Jay B. Kirk, John Mattis
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Patent number: 6661825Abstract: An electronic/photonic integrated circuit in which grating-outcoupled surface-emitting lasers are used both to provide external emission out of the plane of the chip (through gratings), and also to feed optical power into photonic waveguides parallel to the plane of the chip. Transistors are fabricated in a common multilayer semiconductor body with the lasers.Type: GrantFiled: September 4, 2001Date of Patent: December 9, 2003Assignee: Photodigm, Inc.Inventors: Gary A. Evans, Jay B. Kirk, John Mattis
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Patent number: 6636547Abstract: Two or more laser diodes are combined by crossing their cavities, and the multiple lasers share a common outcoupling aperture. By controlling the quantum wells in the active region, crosstalk between the devices can be eliminated. The multiple devices can also be made to crosstalk, and can be made coherent with respect to one another by mixing enough photons to phase lock the devices.Type: GrantFiled: April 27, 2001Date of Patent: October 21, 2003Assignee: Photodigm, Inc.Inventors: Gary A. Evans, Jay B. Kirk, Jacob Meyer Hammer
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Patent number: 6600765Abstract: An array of VCSELs is made to operate coherently by coupling light to and from all elements with a common waveguide. The common waveguide can be fabricated on the wafer or separately, and allows enough optical power to mix between the individual lasers for phase-locking to occur.Type: GrantFiled: April 27, 2001Date of Patent: July 29, 2003Assignee: Photodigm, Inc.Inventors: Gary A. Evans, Jay B. Kirk, Jerome K. Butler
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Publication number: 20030133486Abstract: An electronic/photonic integrated circuit in which grating-outcoupled surface-emitting lasers are used both to provide external emission out of the plane of the chip (through gratings), and also to feed optical power into photonic waveguides parallel to the plane of the chip. Transistors are fabricated in a common multilayer semiconductor body with the lasers.Type: ApplicationFiled: November 22, 2002Publication date: July 17, 2003Applicant: PhotodigmInventors: Gary A. Evans, Jay B. Kirk, John Mattis
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Publication number: 20020086454Abstract: An electronic/photonic integrated circuit in which grating-outcoupled surface-emitting lasers are used both to provide external emission out of the plane of the chip (through gratings), and also to feed optical power into photonic waveguides parallel to the plane of the chip. Transistors are fabricated in a common multilayer semiconductor body with the lasers.Type: ApplicationFiled: September 4, 2001Publication date: July 4, 2002Inventors: Gary A. Evans, Jay B. Kirk, John Mattis
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Publication number: 20020034205Abstract: An array of VCSELs is made to operate coherently by coupling light to and from all elements with a common waveguide. The common waveguide can be fabricated on the wafer or separately, and allows enough optical power to mix between the individual lasers for phase-locking to occur.Type: ApplicationFiled: April 27, 2001Publication date: March 21, 2002Inventors: Gary A. Evans, Jay B. Kirk, Jerome K. Butler
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Publication number: 20020021734Abstract: Two or more laser diodes are combined by crossing their cavities, and the multiple lasers share a common outcoupling aperture. By controlling the quantum wells in the active region, crosstalk between the devices can be eliminated. The multiple devices can also be made to crosstalk, and can be made coherent with respect to one another by mixing enough photons to phase lock the devices.Type: ApplicationFiled: April 27, 2001Publication date: February 21, 2002Inventors: Gary A. Evans, Jay B. Kirk, Jacob Meyer Hammer
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Publication number: 20020001111Abstract: Laser diodes are formed with an outcoupling grating between two separate distributed Bragg reflectors. The devices have gain regions located between the reflector gratings for pumping the active region. The outcoupling grating couples light out of the waveguide normal to the surface if the grating spacings are equal to an integer number of wavelengths of the light within the cavity. If the gratings are not such an integer number, the light is coupled out of the cavity off the normal.Type: ApplicationFiled: April 27, 2001Publication date: January 3, 2002Inventors: Gary A. Evans, Jay B. Kirk, Jacob Meyer Hammer
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Patent number: 4919507Abstract: A first array of laser diode devices are optically coupled by a diffraction grating comprising a plurality of spaced diffraction nodules in a grid array optically coupled to the devices. The light emitted from a device of the first array can pass through the grid array to a second device, reflect back to the emitting device in a Distributed Bragg Reflector (DBR) mode and deflect orthogonal to the emitted light optical axis to a third device in a Distributed Bragg Deflector (DBD) mode. The light from the second and third devices can be coupled to other laser diode devices by still further diffraction nodule arrays to produce phased-locked beams; beam steering of portions of the light and other effects.Type: GrantFiled: May 10, 1989Date of Patent: April 24, 1990Assignee: General Electric CompanyInventors: Gary A. Evans, Jay B. Kirk