Patents by Inventor Paul Morton
Paul Morton 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: 10727947Abstract: The present invention reduces the level of optical reflections created in a photonic integrated circuit (PIC) going back into an integrated laser through Reflection Engineering; optimizing the phase/timing and position of optical reflections inherent to a PIC design while adding engineered reflections to the PIC to allow inherent reflections to be reduced or eliminated. The Wavelength Division Multiplexed (WDM) geometric optical isolator of the present invention combines an array of closely spaced WDM lasers with an array of modulators in a novel geometry in order to provide effective optical isolation of the lasers.Type: GrantFiled: April 24, 2019Date of Patent: July 28, 2020Assignee: Morton PhotonicsInventors: Paul A. Morton, Jacob Khurgin
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Patent number: 10715254Abstract: High-performance ultra-wideband Phased Array Sensors (PAS) are disclosed, which have unique capabilities, enabled through photonic integrated circuits and novel optical architectures. Unique capabilities for a Receive PAS are provided by wafer scale photonic integration including heterogeneous integration of III-V materials and ultra-low-loss silicon nitride waveguides, combining key component technologies into complex PIC devices. Novel aspects include optical multiplexing combining wavelength division multiplexing and/or a novel extension to array photodetectors providing the capability to combine many RF photonic signals with very low loss. The architecture also includes optical down-conversion, as well as digital signal processing to improve the linearity of the system. Simultaneous multi-channel beamforming is achieved through optical power splitting of optical signals to create multiple exact replicas of the signals that are then processed independently.Type: GrantFiled: March 18, 2019Date of Patent: July 14, 2020Assignee: Morton PhotonicsInventors: Paul A. Morton, Jacob Khurgin
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Publication number: 20190372307Abstract: A low noise, single mode laser includes a semiconductor gain element generating light and having a highly reflective first end forming a first end of a laser cavity. The gain element may be monolithically or discretely integrated with, or distinct from, and coupled to a waveguide comprised of a low loss material with a refractive index ‘n’ greater than 3. The waveguide includes a Bragg grating forming the second end of the laser cavity. A cavity phase control section may be provided between the gain element and the Bragg grating. Two photodetector monitors provide a feedback signal for locking the light from the gain element to a specific wavelength on the Bragg grating reflection spectrum by varying at least one of the cavity phase control section and the gain element bias current. The Bragg grating may have a physical length larger than 10 mm and that occupies at least 50% of the optical length of the external cavity.Type: ApplicationFiled: July 23, 2019Publication date: December 5, 2019Applicant: Morton Photonics, Inc.Inventor: Paul A. Morton
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Patent number: 10483718Abstract: A laser including: a gain chip; an external cavity incorporating a Bragg grating; and a baseplate; wherein a first end of the gain chip has a high reflectivity facet forming a first end of the laser cavity; a second end of the gain chip has a low reflectivity facet; and a second part of the external cavity comprises a Bragg grating, supported by the baseplate, the temperature of the baseplate being maintained through a feedback loop; wherein the optical length of the external cavity is at least an order of magnitude greater than the optical length of the gain chip; wherein the Bragg grating is physically long and occupies a majority of the length of the external cavity and is apodized to control the sidemodes of the grating reflection.Type: GrantFiled: December 31, 2018Date of Patent: November 19, 2019Assignee: Morton Photonics, Inc.Inventor: Paul Morton
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Patent number: 10476233Abstract: A laser including: a gain chip; an external cavity incorporating a Bragg grating; and a baseplate; wherein a first end of the gain chip has a high reflectivity facet forming a first end of the laser cavity; a second end of the gain chip has a low reflectivity facet; and a second part of the external cavity comprises a Bragg grating, supported by the baseplate, the temperature of the baseplate being maintained through a feedback loop; wherein the optical length of the external cavity is at least an order of magnitude greater than the optical length of the gain chip; wherein the Bragg grating is physically long and occupies a majority of the length of the external cavity and is apodized to control the sidemodes of the grating reflection.Type: GrantFiled: December 31, 2018Date of Patent: November 12, 2019Assignee: Morton Photonics, Inc.Inventor: Paul Morton
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Publication number: 20190331941Abstract: There is set forth herein an integrated photonics structure having a waveguide disposed within a dielectric stack of the integrated photonics structure, wherein the integrated photonics structure further includes a field generating electrically conductive structure disposed within the dielectric stack; and a heterogenous structure attached to the integrated photonics structure, the heterogenous structure having field sensitive material that is sensitive to a field generated by the field generating electrically conductive structure.Type: ApplicationFiled: April 3, 2019Publication date: October 31, 2019Inventors: Douglas COOLBAUGH, Douglas LA TUPLIPE, JR., Paul A. MORTON, Nicholas G. USECHAK
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Patent number: 10454248Abstract: A laser including: a gain chip; an external cavity incorporating a Bragg grating; and a baseplate; wherein a first end of the gain chip has a high reflectivity facet forming a first end of the laser cavity; a second end of the gain chip has a low reflectivity facet; and a second part of the external cavity comprises a Bragg grating, supported by the baseplate, the temperature of the baseplate being maintained through a feedback loop; wherein the optical length of the external cavity is at least an order of magnitude greater than the optical length of the gain chip; wherein the Bragg grating is physically long and occupies a majority of the length of the external cavity and is apodized to control the sidemodes of the grating reflection.Type: GrantFiled: January 14, 2019Date of Patent: October 22, 2019Assignee: Morton Photonics IncorporatedInventor: Paul A. Morton
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Publication number: 20190253146Abstract: The present invention reduces the level of optical reflections created in a photonic integrated circuit (PIC) going back into an integrated laser through Reflection Engineering; optimizing the phase/timing and position of optical reflections inherent to a PIC design while adding engineered reflections to the PIC to allow inherent reflections to be reduced or eliminated. The Wavelength Division Multiplexed (WDM) geometric optical isolator of the present invention combines an array of closely spaced WDM lasers with an array of modulators in a novel geometry in order to provide effective optical isolation of the lasers.Type: ApplicationFiled: April 24, 2019Publication date: August 15, 2019Applicant: Morton PhotonicsInventors: Paul A. Morton, Jacob Khurgin
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Patent number: 10380816Abstract: A method, computer program product, and system are disclosed for facilitating access by a first person to a secure region that is at least partly defined by an access control device. The method acquires, using at least one visual sensor, first image information including the first person and the access control device. The method identifies the first person using image analysis performed on the first image information. The method further identifies a first behavior of the first person relative to the access control device. Upon determining the first behavior corresponds to a predefined visual access behavior indicating that the first person is in the process of manually operating the access control device, and that the security level of the first person satisfies a predetermined threshold security level associated with the access control device, the method permits the first person to physically access the secure region.Type: GrantFiled: July 23, 2018Date of Patent: August 13, 2019Assignee: Toshiba Global Commerce Solutions Holdings CorporationInventors: John David Landers, Jr., Dean Frederick Herring, Paul Morton Wilson, David John Steiner, Kimberly Ann Wood
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Publication number: 20190215070Abstract: High-performance ultra-wideband Phased Array Sensors (PAS) are disclosed, which have unique capabilities, enabled through photonic integrated circuits and novel optical architectures. Unique capabilities for a Receive PAS are provided by wafer scale photonic integration including heterogeneous integration of III-V materials and ultra-low-loss silicon nitride waveguides, combining key component technologies into complex PIC devices. Novel aspects include optical multiplexing combining wavelength division multiplexing and/or a novel extension to array photodetectors providing the capability to combine many RF photonic signals with very low loss. The architecture also includes optical down-conversion, as well as digital signal processing to improve the linearity of the system. Simultaneous multi-channel beamforming is achieved through optical power splitting of optical signals to create multiple exact replicas of the signals that are then processed independently.Type: ApplicationFiled: March 18, 2019Publication date: July 11, 2019Inventors: Paul A. Morton, Jacob Khurgin
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Publication number: 20190157840Abstract: A laser including: a gain chip; an external cavity incorporating a Bragg grating; and a baseplate; wherein a first end of the gain chip has a high reflectivity facet forming a first end of the laser cavity; a second end of the gain chip has a low reflectivity facet; and a second part of the external cavity comprises a Bragg grating, supported by the baseplate, the temperature of the baseplate being maintained through a feedback loop; wherein the optical length of the external cavity is at least an order of magnitude greater than the optical length of the gain chip; wherein the Bragg grating is physically long and occupies a majority of the length of the external cavity and is apodized to control the sidemodes of the grating reflection.Type: ApplicationFiled: December 31, 2018Publication date: May 23, 2019Applicant: Morton Photonics, Inc.Inventor: Paul Morton
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Publication number: 20190157841Abstract: A laser including: a gain chip; an external cavity incorporating a Bragg grating; and a baseplate; wherein a first end of the gain chip has a high reflectivity facet forming a first end of the laser cavity; a second end of the gain chip has a low reflectivity facet; and a second part of the external cavity comprises a Bragg grating, supported by the baseplate, the temperature of the baseplate being maintained through a feedback loop; wherein the optical length of the external cavity is at least an order of magnitude greater than the optical length of the gain chip; wherein the Bragg grating is physically long and occupies a majority of the length of the external cavity and is apodized to control the sidemodes of the grating reflection.Type: ApplicationFiled: December 31, 2018Publication date: May 23, 2019Applicant: Morton Photonics, Inc.Inventor: Paul Morton
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Patent number: 10277324Abstract: High-performance ultra-wideband Phased Array Sensors (PAS) are disclosed, which have unique capabilities, enabled through photonic integrated circuits and novel optical architectures. Unique capabilities for a Receive PAS are provided by wafer scale photonic integration including heterogeneous integration of III-V materials and ultra-low-loss silicon nitride waveguides, combining key component technologies into complex PIC devices. Novel aspects include optical multiplexing combining wavelength division multiplexing and/or a novel extension to array photodetectors providing the capability to combine many RF photonic signals with very low loss. The architecture also includes optical down-conversion, as well as digital signal processing to improve the linearity of the system. Simultaneous multi-channel beamforming is achieved through optical power splitting of optical signals to create multiple exact replicas of the signals that are then processed independently.Type: GrantFiled: October 10, 2018Date of Patent: April 30, 2019Assignee: Morton PhotonicsInventors: Paul A. Morton, Jacob Khurgin
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Patent number: 10253772Abstract: Provided is a variable displacement vane pump with a control slide and a first and second control chambers. Also, the pump has a control system for controlling delivery of pressurized lubricant to the chambers. The control system includes a control device configured for movement between at least a first control position and a second control position. The control device may include its own housing and/or include discs configured for relative movement. The pivot pin may include grooves for delivering a flow from the outlet to the control system. In the first control position, pressurized lubricant is delivered to the first control chamber and the second control chamber is vented, which increases the output flow of the pump. In the second control position, pressurized lubricant is delivered to the second control chamber and the first control chamber is vented, which decreases the output flow of the pump.Type: GrantFiled: May 12, 2016Date of Patent: April 9, 2019Assignee: STACKPOLE INTERNATIONAL ENGINEERED PRODUCTS, LTD.Inventor: Paul Morton
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Publication number: 20190097725Abstract: High-performance ultra-wideband Phased Array Sensors (PAS) are disclosed, which have unique capabilities, enabled through photonic integrated circuits and novel optical architectures. Unique capabilities for a Receive PAS are provided by wafer scale photonic integration including heterogeneous integration of III-V materials and ultra-low-loss silicon nitride waveguides, combining key component technologies into complex PIC devices. Novel aspects include optical multiplexing combining wavelength division multiplexing and/or a novel extension to array photodetectors providing the capability to combine many RF photonic signals with very low loss. The architecture also includes optical down-conversion, as well as digital signal processing to improve the linearity of the system. Simultaneous multi-channel beamforming is achieved through optical power splitting of optical signals to create multiple exact replicas of the signals that are then processed independently.Type: ApplicationFiled: October 10, 2018Publication date: March 28, 2019Applicant: Morton PhotonicsInventors: Paul A. MORTON, Jacob KHURGIN
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Patent number: 10234701Abstract: In the Waveguide Array Modulator (WAM) a single electrical signal drives an array of waveguide optical modulators, creating multiple modulated output signals that can be combined to provide a higher output power than from a single waveguide based modulator, enabling a higher dynamic range system. Alternatively, using a WAM in which different waveguide optical modulators are designed for different dynamic ranges, e.g. one highly efficient modulator for low level signals and one low efficiency but linear modulator for high level signals, the WAM based system can provide a higher dynamic range than from a single waveguide based modulator. Various WAM based systems for different applications are included.Type: GrantFiled: October 18, 2017Date of Patent: March 19, 2019Assignee: Morton PhotonicsInventors: Paul A. Morton, Jacob Khurgin
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Patent number: 10193306Abstract: A laser including: a gain chip; an external cavity incorporating a Bragg grating; and a baseplate; wherein a first end of the gain chip has a high reflectivity facet forming a first end of the laser cavity; a second end of the gain chip has a low reflectivity facet; and a second part of the external cavity comprises a Bragg grating, supported by the baseplate, the temperature of the baseplate being maintained through a feedback loop; wherein the optical length of the external cavity is at least an order of magnitude greater than the optical length of the gain chip; wherein the Bragg grating is physically long and occupies a majority of the length of the external cavity and is apodized to control the sidemodes of the grating reflection.Type: GrantFiled: August 22, 2017Date of Patent: January 29, 2019Assignee: Morton Photonics IncorporatedInventor: Paul A. Morton
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Patent number: 10162117Abstract: This invention removes the need to provide temperature control for an optical time delay chip, which is usually provided by a thermo-electric-cooler, in order to significantly reduce the power dissipation of the device and allow ‘uncooled’ operation. Uncooled operation is achieved by monitoring the temperature of the chip, and changing the tuning of each microresonator within the device in order to continue providing the required time delay as the temperature is varied. This invention takes advantage of the fact that microresonators provide a series of resonant wavelengths over a wide wavelength range, so that the closest resonance wavelength below the operating wavelength can always be tuned up to that wavelength. When the device temperature changes, this is accounted for by both the choice of resonance wavelengths and the tuning for each of the microresonators in the device, in order to keep the correct tunable delay.Type: GrantFiled: March 18, 2014Date of Patent: December 25, 2018Assignee: Morton PhotonicsInventors: Paul A. Morton, Jacob Khurgin
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Publication number: 20180350174Abstract: A method, computer program product, and system are disclosed for facilitating access by a first person to a secure region that is at least partly defined by an access control device. The method acquires, using at least one visual sensor, first image information including the first person and the access control device. The method identifies the first person using image analysis performed on the first image information. The method further identifies a first behavior of the first person relative to the access control device. Upon determining the first behavior corresponds to a predefined visual access behavior indicating that the first person is in the process of manually operating the access control device, and that the security level of the first person satisfies a predetermined threshold security level associated with the access control device, the method permits the first person to physically access the secure region.Type: ApplicationFiled: July 23, 2018Publication date: December 6, 2018Inventors: John David LANDERS, JR., Dean Frederick HERRING, Paul Morton WILSON, David John STEINER, Kimberly Ann WOOD
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Patent number: 10128952Abstract: High-performance ultra-wideband Receive Phased Array Sensors (Rx-PAS) are disclosed, which have unique capabilities, enabled through photonic integrated circuits and novel optical architectures. Unique capabilities for a Rx-PAS are provided by wafer scale photonic integration including heterogeneous integration of III-V materials and ultra-low-loss silicon nitride waveguides. Novel aspects include optical multiplexing combining wavelength division multiplexing and/or a novel extension to array photodetectors providing the capability to combine many RF photonic signals with very low loss. The architecture includes tunable optical down-conversion, moving a chosen frequency band to baseband with high dynamic range; creating also a single frequency hand channelizer, which is also expanded to create a multiple tunable frequency band channelizer.Type: GrantFiled: January 5, 2017Date of Patent: November 13, 2018Assignee: Morton PhotonicsInventors: Paul A. Morton, Jacob Khurgin