Patents by Inventor Douglas M. Gill
Douglas M. Gill 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: 8781561Abstract: A method and system perform physiological monitoring. The system includes a first light source and a plurality of optical waveguide couplers, each of the plurality of optical waveguide couplers being arranged at a different predetermined spatial location on an ocular insert to be placed on an eye. The system also includes a plurality of optical waveguides. Each optical waveguide carries light from a second light source to a respective one of the plurality of optical waveguide couplers and carries a received signal from the respective one of the plurality of optical waveguide couplers. A processor receives the received signal from each of the plurality of optical waveguides and monitors a parameter based on the received signal.Type: GrantFiled: August 10, 2012Date of Patent: July 15, 2014Assignee: International Business Machines CorporationInventor: Douglas M. Gill
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Patent number: 8768439Abstract: A method and system perform physiological monitoring. The system includes a first light source and a plurality of optical waveguide couplers, each of the plurality of optical waveguide couplers being arranged at a different predetermined spatial location on an ocular insert to be placed on an eye. The system also includes a plurality of optical waveguides. Each optical waveguide carries light from a second light source to a respective one of the plurality of optical waveguide couplers and carries a received signal from the respective one of the plurality of optical waveguide couplers. A processor receives the received signal from each of the plurality of optical waveguides and monitors a parameter based on the received signal.Type: GrantFiled: August 7, 2012Date of Patent: July 1, 2014Assignee: International Business Machines CorporationInventor: Douglas M. Gill
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Publication number: 20140072267Abstract: An optical waveguide system includes a substrate, a cladding layer arranged on the substrate, a core layer arranged on the cladding layer, and a lens-prism patterned in the core material, the lens-prism comprising a Fresnel lens portion, and a Fresnel prism portion.Type: ApplicationFiled: September 7, 2012Publication date: March 13, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventor: Douglas M. Gill
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Publication number: 20140072268Abstract: An optical waveguide system includes a substrate, a cladding layer arranged on the substrate, a core layer arranged on the cladding layer, a lens patterned in the core material, and a prism patterned in the core material, the prism arranged adjacent to the lens.Type: ApplicationFiled: September 13, 2012Publication date: March 13, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventor: Douglas M. Gill
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Publication number: 20140064656Abstract: A method for demultiplexing an optical signal includes receiving a multi polarization optical signal, separating the multi polarization optical signal into a first polarization optical signal and a second polarization optical signal, rotating a polarization of the first polarization optical signal to match a polarization of the second polarization optical signal, routing the first polarization optical signal and the second polarization optical signal to a common demultiplexing device, outputting a channel of the first polarization optical signal and the second polarization optical signal to a common photodetector.Type: ApplicationFiled: September 12, 2012Publication date: March 6, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Solomon Assefa, Douglas M. Gill, William M. Green
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Publication number: 20140064653Abstract: An electro-optical modulator device includes an optical signal path partially defined by a waveguide portion, a radio frequency (RF) signal path partially defined by a conductive line portion, an interaction region where an RF signal propagating in the RF signal path interacts with an optical signal propagating in the optical signal path to modulate the optical signal, and a first tuning portion arranged proximate to the conductive line portion, the first tuning portion including a conductive portion and a switch portion operative to connect the conductive portion to ground.Type: ApplicationFiled: September 5, 2012Publication date: March 6, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Douglas M. Gill, William M. Green, Alberto Valdes Garcia
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Publication number: 20140061450Abstract: A method for controlling an electro-optic modulator device includes measuring a performance metric of the device to define a first measured performance value, and changing a state of a first tuning portion of the device to connect the first tuning portion to ground.Type: ApplicationFiled: September 12, 2012Publication date: March 6, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Douglas M. Gill, William M. Green, Alberto Valdes Garcia
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Publication number: 20140064729Abstract: An optical demultiplexing device includes a first portion operative to receive an input optical signal having a first polarization, a second polarization and multiple channels, and split the input optical signal into a first optical signal having the first polarization and a second optical signal having the first polarization, and an optical demultiplexing portion communicatively connected to the polarization splitter portion, the optical demultiplexing portion operative to receive a combination of the first optical signal and the second optical signal, and output each channel of the first optical signal and the second optical signal to a photodetector device corresponding to each channel.Type: ApplicationFiled: September 5, 2012Publication date: March 6, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Solomon Assefa, Douglas M. Gill, William M. Green
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Publication number: 20140046151Abstract: A method and system perform physiological monitoring. The system includes a first light source and a plurality of optical waveguide couplers, each of the plurality of optical waveguide couplers being arranged at a different predetermined spatial location on an ocular insert to be placed on an eye. The system also includes a plurality of optical waveguides. Each optical waveguide carries light from a second light source to a respective one of the plurality of optical waveguide couplers and carries a received signal from the respective one of the plurality of optical waveguide couplers. A processor receives the received signal from each of the plurality of optical waveguides and monitors a parameter based on the received signal.Type: ApplicationFiled: August 7, 2012Publication date: February 13, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventor: Douglas M. Gill
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Publication number: 20140046198Abstract: A method and system perform physiological monitoring. The system includes a first light source and a plurality of optical waveguide couplers, each of the plurality of optical waveguide couplers being arranged at a different predetermined spatial location on an ocular insert to be placed on an eye. The system also includes a plurality of optical waveguides. Each optical waveguide carries light from a second light source to a respective one of the plurality of optical waveguide couplers and carries a received signal from the respective one of the plurality of optical waveguide couplers. A processor receives the received signal from each of the plurality of optical waveguides and monitors a parameter based on the received signal.Type: ApplicationFiled: August 10, 2012Publication date: February 13, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventor: Douglas M. Gill
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Patent number: 8643929Abstract: An apparatus includes an optical splitter, an optical intensity combiner, first and second Mach-Zehnder interferometers, and first and second drive electrodes. The first Mach-Zehnder interferometer connects a first optical output of the optical intensity splitter to a first optical input of the optical intensity combiner. The second Mach-Zehnder interferometer connects a second optical output of the optical intensity splitter to a second optical input of the optical intensity combiner. The first drive electrode is located between and connected to a pair of semiconductor junctions along first internal optical arms of the Mach-Zehnder interferometers. The second drive electrode is located between and connected to a pair of semiconductor junctions along second internal optical arms of the Mach-Zehnder interferometers.Type: GrantFiled: January 12, 2010Date of Patent: February 4, 2014Assignee: Alcatel LucentInventors: Douglas M. Gill, Mahmoud Rasras
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Publication number: 20140029949Abstract: An electro-optical device includes an optical de-multiplexing portion operative to output a first optical signal having a first wavelength and a second optical signal having a second wavelength, an array of photodetectors, and a switching logic portion communicatively connected to the array of photodetectors, the switching logic portion operative to determine which photodetector of the array of photodetectors is converting the first optical signal into a first electrical signal and output the first electrical signal from a first output node associated with the first optical signal.Type: ApplicationFiled: July 24, 2012Publication date: January 30, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Solomon Assefa, Douglas M. Gill, Jonathan E. Proesel, Alexander V. Rylyakov, Clint L. Schow
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Publication number: 20140029950Abstract: A method for controlling an output of an electro-optical de-multiplexing device, the method including identifying which photodetector of a first array of photodetectors is converting a first channel of an optical signal into a first electrical channel signal, and affecting a communicative connection between the identified photodetector of the first array of photodetectors that is converting the first channel of the optical signal into the first electrical channel signal and a first output node associated with the first electrical channel signal.Type: ApplicationFiled: July 31, 2012Publication date: January 30, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Solomon Assefa, Douglas M. Gill, Jonathan E. Proesel, Alexander V. Rylyakov, Clint L. Schow
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Patent number: 8346025Abstract: An apparatus 100 that comprises a planar electro-optic modulator 110 being located on a substrate 105 and including a waveguide 115 and electrical contacts 120. The waveguide that includes first and second substantially straight segments 122, and a curved segment 126 that serially end-connects the first and second substantially straight segments such that light 130 travels in a substantially anti-parallel manner in the first and second substantially straight segments. The electrical contacts being located adjacent the first and second substantially straight segments and being connected to produce constructively adding phase modulations on an optical carrier passing through the segments.Type: GrantFiled: May 18, 2009Date of Patent: January 1, 2013Assignee: Alcatel LucentInventor: Douglas M. Gill
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Patent number: 8270779Abstract: An apparatus comprising an electronic-photonic device. The device includes a planar substrate having a top layer on a middle layer, active electronic components and active photonic waveguide components. The active electronic components are located on first lateral regions of the top layer, and the active photonic waveguide components are located on second lateral regions of the top layer. The second-region thickness is greater than the first-region thickness. The top layer has a higher refractive index than the middle layer.Type: GrantFiled: September 13, 2011Date of Patent: September 18, 2012Assignee: Alcatel LucentInventors: Douglas M. Gill, Mahmoud Rasras
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Publication number: 20120087659Abstract: An apparatus includes an array of N laser light sources, an array of N optical detectors, and a wavelength-selective optical router. The wavelength-selective optical router is configured to receive light emitted by the laser light sources and to route the light received from each laser light source to one of the optical detectors corresponding thereto. The apparatus is configured to adjust output wavelengths of the laser light sources based on light intensities measured by the optical detectors.Type: ApplicationFiled: November 12, 2010Publication date: April 12, 2012Inventor: Douglas M. Gill
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Publication number: 20120003763Abstract: An apparatus comprising an electronic-photonic device. The device includes a planar substrate having a top layer on a middle layer, active electronic components and active photonic waveguide components. The active electronic components are located on first lateral regions of the top layer, and the active photonic waveguide components are located on second lateral regions of the top layer. The second-region thickness is greater than the first-region thickness. The top layer has a higher refractive index than the middle layer.Type: ApplicationFiled: September 13, 2011Publication date: January 5, 2012Applicant: Alcatel-Lucent USA Inc.Inventors: Douglas M. Gill, Mahmoud Rasras
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Patent number: 8049950Abstract: An optical pulse generator comprising a phase modulator, wherein the phase modulator is configured to phase modulate and intensity modulate a continuous wave (CW) light signal in accordance with a received electrical signal, and an all-pass filter, the all-pass filter being coupled to the phase modulator to generate a pulsed light signal by filtering the modulated light signal from the phase modulator.Type: GrantFiled: January 9, 2009Date of Patent: November 1, 2011Assignee: Alcatel LucentInventor: Douglas M Gill
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Patent number: 8041158Abstract: An apparatus comprising an electronic-photonic device. The device includes a planar substrate having a top layer on a middle layer, active electronic components and active photonic waveguide components. The active electronic components are located on first lateral regions of the top layer, and the active photonic waveguide components are located on second lateral regions of the top layer. The second-region thickness is greater than the first-region thickness. The top layer has a higher refractive index than the middle layer.Type: GrantFiled: November 13, 2008Date of Patent: October 18, 2011Assignee: Alcatel LucentInventors: Douglas M. Gill, Mahmoud Rasras
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Publication number: 20110170161Abstract: An apparatus includes an optical splitter, an optical intensity combiner, first and second Mach-Zehnder interferometers, and first and second drive electrodes. The first Mach-Zehnder interferometer connects a first optical output of the optical intensity splitter to a first optical input of the optical intensity combiner. The second Mach-Zehnder interferometer connects a second optical output of the optical intensity splitter to a second optical input of the optical intensity combiner. The first drive electrode is located between and connected to a pair of semiconductor junctions along first internal optical arms of the Mach-Zehnder interferometers. The second drive electrode is located between and connected to a pair of semiconductor junctions along second internal optical arms of the Mach-Zehnder interferometers.Type: ApplicationFiled: January 12, 2010Publication date: July 14, 2011Inventors: Douglas M. Gill, Mahmoud Rasras