Patents Examined by Chad H. Smith
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Patent number: 11684240Abstract: The invention relates to multicore fiber imaging, such as used in endoscopy. Methods are described for processing images captured with such systems to achieve an improved depth of field image or extract 3D information concerning the images, without requiring the addition of additional optical components. One method for generating an image from light received by an imager via a multiplicity of waveguides includes receiving a digital image containing a plurality of pixels, the digital image including a plurality of regions within it wherein each of said regions corresponds to a waveguide core. Each region includes a plurality of pixels, and a first subset of pixels within each region is defined which at least partly correlates with light having been received at a corresponding core in a first spatial arrangement, the subset including less than all of the pixels within a region. A first image is generated from the first subset of pixels from said regions, combined to form an image over the whole waveguide array.Type: GrantFiled: January 25, 2019Date of Patent: June 27, 2023Assignee: ROYAL MELBOURNE INSTITUTE OF TECHNOLOGYInventor: Antony Orth
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Patent number: 11675126Abstract: A hybrid photonic integrated circuit and a method of its manufacture are provided. A SiP functional layer is fabricated on an SOI wafer. A lithium niobate thin film is bonded to the SiP functional layer. The silicon handle layer is removed from the SOI wafer to expose buried oxide, and at least one III-V die is bonded to the exposed buried oxide. In embodiments, at least one waveguiding component is fabricated in the SiP functional layer. In embodiments, the SiP functional layer comprises a top waveguiding layer.Type: GrantFiled: April 5, 2021Date of Patent: June 13, 2023Assignee: National Technology & Engineering Solutions of Sandia, LLCInventors: Ashok Kodigala, Anthony L. Lentine, Nicholas Boynton, Douglas Chandler Trotter, Thomas A. Friedmann, Phillip Harrison Weiner
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Patent number: 11675149Abstract: Disclosed are a dual-carrier integrated optical device and a photoelectric module. The optical device comprises: an encapsulation unit, and a ceramic substrate and two independent carrier assemblies arranged in the encapsulation unit. Every carrier assembly comprises a DWDM active chip arranged on the first heat sink, a first heat sink arranged on the independent control element, and an independent control element for adjusting the temperature of the DWDM active chip to adjust an output wavelength of the DWDM active chip. The DWDM active chip and the independent control element are respectively connected to the ceramic substrate. According to the characteristic that the wavelength of the active chip will shift with the temperature, an output laser wavelength of each active chip is independently controlled by means of the independent control element, which achieves higher wavelength stability and can realize optical signal transmission at different rates.Type: GrantFiled: December 25, 2018Date of Patent: June 13, 2023Inventors: Yangyang Yue, Xiaoping Song, Chengpeng Fu, Jian Li, Qinlian Bu, Hongchun Xu, Wuping Zhang, Chenggang Liu
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Patent number: 11668876Abstract: An optical beam steering device is provided that includes an input optical fiber carrying multiple input optical signals, where each input optical signal includes a unique wavelength, an arrayed waveguide grating router (AWGR) having multiple output fibers, where the input optical fiber is connected to the AWGR, distal ends of the output fibers are arranged in a two-dimensional fiber array, the input optical signals are routed by the AWGR according to each unique wavelength to a unique AWGR output fiber, and a lens, where the distal ends of the output fibers are disposed proximal to a focal plane of the lens, where for each unique position of each output fiber distal end with respect to a the lens, each input optical signal is steered at a unique angle as an output beam emitted from the lens, where changing the wavelength of the input optical signal changes the output signal angles.Type: GrantFiled: November 28, 2017Date of Patent: June 6, 2023Assignee: Technische Universiteit EindhovenInventor: Antonius Marcellus Jozef Koonen
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Patent number: 11668994Abstract: In photonic integrated circuits implemented in silicon-on-insulator substrates, non-conductive channels formed, in accordance with various embodiments, in the silicon device layer and/or the silicon handle of the substrate in regions underneath radio-frequency transmission lines of photonic devices can provide breaks in parasitic conductive layers of the substrate, thereby reducing radio-frequency substrate losses.Type: GrantFiled: March 16, 2021Date of Patent: June 6, 2023Assignee: OpenLight Photonics, Inc.Inventors: John Parker, Gregory Alan Fish, Brian R. Koch
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Patent number: 11662522Abstract: An optical waveguide device includes first and second waveguides formed parallel to each other. The first waveguide includes a first rib and a first slab. The first slab is formed in a region between the first rib and the second waveguide. The second waveguide includes a second rib, a second slab and a third slab. The second rib is provided between the second slab and the third slab. The first and second slabs are integrally formed. At one end of the optical waveguide device, a first effective refractive index that indicates an effective refractive index of a TEi mode in the first waveguide is higher than a second effective refractive index that indicates an effective refractive index of a TEj mode in the second waveguide. At another end, the first effective refractive index is lower than the second effective refractive index.Type: GrantFiled: November 12, 2021Date of Patent: May 30, 2023Assignee: Fujitsu Optical Components LimitedInventor: Akira Oka
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Patent number: 11644305Abstract: An apparatus for monitoring strain in an optical chip in silicon photonics platform. The apparatus includes a silicon photonics substrate shared with the optical chip. Additionally, the apparatus includes an optical input configured in the silicon photonics substrate to supply an input signal of a single wavelength. The apparatus further includes a first waveguide arm and a second waveguide arm embedded in the silicon photonics substrate to form an on-chip interferometer. The second waveguide arm forms a delay line being disposed at a region in or adjacent to the optical chip. The on-chip interferometer is configured to generate an interference pattern serving as an indicator of strain distributed at the region in or adjacent to the optical chip. The interference pattern is caused by a temperature-independent phase shift at the single wavelength of the interferometer between the first waveguide arm and the second waveguide arm.Type: GrantFiled: June 9, 2021Date of Patent: May 9, 2023Assignee: MARVELL ASIA PTE LTDInventors: Chunshu Zhang, Jie Lin, Masaki Kato
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Patent number: 11641531Abstract: A compressive/transform imager comprising a lens array positioned above input ports for collecting light into the input ports, waveguides routing the light from the input port to waveguide mixing regions (e.g. multi-mode interference couplers), and detectors for receiving outputs of the waveguide mixing regions.Type: GrantFiled: December 7, 2020Date of Patent: May 2, 2023Assignee: The Charles Stark Draper Laboratory, Inc.Inventors: Michael Moebius, Julian Brown, Steven Spector, Benjamin Lane, Alan Zhou, Hannah Anne Clevenson, Lucas David Benney
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Patent number: 11630276Abstract: A hinge structure (2202) for pivotally mounting a first telecommunications element (2256) to a second telecommunications element (2224/2210) includes a hinge pin (2203) provided on the first element (2256) and a hinge pin receiver (2204) provided on the second element (2224/2210). The hinge pin (2203) defines a notch (2206) separating the pin (2203) into two pin halves (2205). The hinge pin receiver (2204) defines two sets of opposing surfaces (2214), the two sets (2214) separated by a divider (2212), the divider (2212) configured to be accommodated by the notch (2206) when the hinge pin (2203) is inserted into the hinge pin receiver (2204), wherein each opposing surface set (2214) defines a slot (2213) for receiving each pin half (2205).Type: GrantFiled: December 28, 2021Date of Patent: April 18, 2023Assignee: COMMSCOPE CONNECTIVITY BELGIUM BVBAInventors: Pieter Vermeulen, Johan Geens, Peter Claes
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Patent number: 11630264Abstract: An optical element including a plurality of first circuits, the optical element includes a first cascade circuit in which one or more of first circuits are connected in cascade, a second cascade circuit in which one or more of first circuits are connected in cascade, and a combiner circuit configured to connect the first cascade circuit and the second cascade circuit. A first circuit included in the plurality of first circuits includes a first cascade structure in which N (N is an integer of 1 or larger) of 2-input and 2-output phase shifters and (N+1) of 2-input and 2-output couplers are alternately connected in cascade, and a first controller configured to control the N phase shifters in a direction in which optical input power decreases, the first controller being connected to one of two outputs of the first cascade structure.Type: GrantFiled: August 31, 2021Date of Patent: April 18, 2023Assignee: FUJITSU LIMITEDInventor: Tomoyuki Akiyama
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Patent number: 11619779Abstract: An electronic device may have a display with pixels configured to display an image. An image transport layer may be formed from a coherent fiber bundle or Anderson localization material. The image transport layer may overlap the pixels and may have an input surface that receives the image from the pixels and a corresponding output surface on which the received image is viewable. The image transport layer may form an exterior surface of the electronic device or may be overlapped by a transparent cover layer. Various methods such as swelling, piping, and slumping may be used to process fibers and form image transport layers. A fiber bundle that is used to form an image transport layer may include fibers that have varying properties.Type: GrantFiled: August 9, 2019Date of Patent: April 4, 2023Assignee: Apple Inc.Inventors: Jean-Pierre S. Guillou, Tyler R. Kakuda, Ying-Chih Wang, Michael J. Brown, Yi Qiao, Hao Dong, Paul C. Kelley, Shaorui Yang, Salman Karbasivalashani
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Patent number: 11604318Abstract: An optical fiber sub-assembly includes: a handle, a rear retainer, an optical cable, a field mountable connector (FMC) assembly, a spindle, and a protection hood fixedly connected to the spindle. An end of the optical cable is connected to the FMC assembly, the optical cable protrudes from a first end of the FMC assembly. The FMC assembly includes a ferrule provided at a second end of the FMC assembly. The spindle is sleeved outside the first end of the FMC assembly, and the protection hood is sleeved outside the second end of the FMC assembly. An end of the spindle that is away from the protection hood is connected to the rear retainer and is used to fasten the optical cable. The handle is sleeved outside the protection hood and the spindle.Type: GrantFiled: February 24, 2021Date of Patent: March 14, 2023Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Wei Xiong, Xiupeng Li, Jianxiong Yu, Shangjun Peng, Boyong He
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Patent number: 11605510Abstract: A switchgear includes an optical monitoring system for examining switchgear switching positions. At least one isolating switch is accommodated in an encapsulated housing. The encapsulated housing is disposed in an installation housing. The encapsulated housing has a first transparent window in one region. A fiber-optic system leads from an outer side of the installation housing to the first transparent window.Type: GrantFiled: February 21, 2020Date of Patent: March 14, 2023Assignee: Siemens AktiengesellschaftInventor: Kay Czeromin
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Patent number: 11603284Abstract: A system that may be used for deploying optical cables, the system may include a track having an outer edge and a surface, the track having a track gear disposed proximate the outer edge and a plurality of track grooves disposed on the surface of the track. The system may also include a spool having a first outer edge and a second outer edge. The spool may include a first wheel disposed on the first outer edge, a second wheel disposed on the second outer edge, a spool gear disposed on the first wheel and interfacing with the track gear, plurality of spool grooves, and a plurality of guides interfacing with the track to align the track grooves with the spool grooves.Type: GrantFiled: December 29, 2020Date of Patent: March 14, 2023Assignee: Hewlett Packard Enterprise Development LPInventors: Kevin B. Leigh, John Norton
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Patent number: 11598678Abstract: A distributed temperature sensor system has a pulsed laser coupled to a circulator, the circulator having a laser input and coupling energy to an optical reference coil in series with a measurement fiber having loops or helical turns, the circulator having a backscatter signal port coupling backscattered reflections from the measurement fiber. The backscatter signal port is coupled to a switch and mux, the switch and mux selecting either an anti-Stokes filter or a Stokes filter, the output of the mux coupled to a photodetector, the photodetector coupled to a histogram processor synchronized to the pulsed laser enable. The histogram processor uses the anti-Stokes and Stokes histogram counts associated with a sensor region to estimate a temperature of that sensor region.Type: GrantFiled: December 17, 2019Date of Patent: March 7, 2023Assignee: Intelligent Fiber Optic Systems, Inc.Inventors: Behzad Moslehi, Mehrdad Moslehi
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Patent number: 11590531Abstract: An optical element is provided. The optical element includes a substrate; a plurality of metal grids formed on the substrate; an oxide layer formed on the substrate between the plurality of metal grids; and a plurality of organic layers formed on the plurality of metal grids, wherein the width of the organic layer is greater than the width of the metal grid, and there is at least one gap between the organic layer and the oxide layer.Type: GrantFiled: April 30, 2020Date of Patent: February 28, 2023Assignee: VISERA TECHNOLOGIES COMPANY LIMITEDInventors: Sheng-Chuan Cheng, Huang-Jen Chen, Chi-Han Lin, Han-Lin Wu
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Patent number: 11592638Abstract: A thermal management system for a power and fiber splice enclosure that includes a housing including electrical components is provided. The thermal management system includes a solar shield disposed external to the housing and covering at least a major portion of the housing. The thermal management system includes a vent disposed in the housing for venting hot air from the enclosure. The thermal management system includes a condenser thermally coupled to a heat conducting component of the enclosure for cooling at least the heat conducting component.Type: GrantFiled: May 24, 2021Date of Patent: February 28, 2023Assignee: COMMSCOPE TECHNOLOGIES LLCInventors: Thomas F. Craft, Jr., Willis F. James, Thomas G. Leblanc, Gary L. Guilliams, Carlos Jair Briceno, Thomas A. Thigpen
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Patent number: 11573416Abstract: Disclosed herein is a recirculating programmable photonic circuit including a programmable optical coupler including two first programmable waveguides and configured to adjust optical coupling efficiency of an optical signal based on a vertical movement of one of the two first programmable waveguides, a phase shifter including a second programmable waveguide and configured to change a phase of the optical signal based on a horizontal movement of the second programmable waveguide with respect to the first programmable waveguides, a plurality of core cells connected to each of the programmable optical coupler and the phase shifter to form a predetermined shape, the core cells being selectively driven by moving the optical signal from the predetermined shape according to the optical coupling efficiency and the phase, and an actuator electrically connected to one side of each of the plurality of core cells and configured to control the vertical movement and the horizontal movement.Type: GrantFiled: December 20, 2021Date of Patent: February 7, 2023Assignees: Daegu Gyeongbuk Institute of Science and Technology, Korea Advanced Institute of Science and TechnologyInventors: Sangyoon Han, Kyoung Sik Yu
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Patent number: 11567259Abstract: An intravascular or other 2D or 3D imaging apparatus can include a minimally-invasive distal imaging guidewire portion. A plurality of thin optical fibers can be circumferentially distributed about a cylindrical guidewire core, such as in an spiral-wound or otherwise attached optical fiber ribbon. A low refractive index coating, high numerical aperture (NA) fiber, or other technique can be used to overcome challenges of using extremely thin optical fibers. Coating and ribbonizing techniques are described. Also described are non-uniform refractive index peak amplitudes or wavelengths techniques for FBG writing, using a depressed index optical cladding, chirping, a self-aligned connector, optical fiber routing and alignment techniques for a system connector, and an adapter for connecting to standard optical fiber coupling connectors.Type: GrantFiled: March 24, 2021Date of Patent: January 31, 2023Assignee: Phyzhon Health Inc.Inventors: Diana Margaret Tasker, Michael J. Eberle, Howard Neil Rourke
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Patent number: 11543593Abstract: An optical device has a first photonic waveguide provided on a substrate, a second photonic waveguide provided on the substrate and extending side by side with the first photonic waveguide, and a looped waveguide continuously connecting the first photonic waveguide and the second photonic waveguide on the substrate, wherein a width of at least one of the first photonic waveguide or the second photonic waveguide varies continuously along an optical axis, between a first position located at a side opposite to the looped waveguide and a second position connected to the looped waveguide, and wherein cross sections of the first photonic waveguide and the second photonic waveguide are congruent at the second position, and are incongruent at the first position.Type: GrantFiled: February 17, 2021Date of Patent: January 3, 2023Assignee: FUJITSU OPTICAL COMPONENTS LIMITEDInventor: Akira Oka