Patents Examined by Rhonda S Peace
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Patent number: 11971599Abstract: A sealed terminal has a housing, a cover, a splice tray, an adapter plate, and a splice chip. The cover is connected to the housing to close an interior compartment and has input ports for receiving one or more cables and an output adapter module having a plurality of distribution ports. The splice tray is positioned in the interior compartment and has one or more cable retainers configured to route the one or more cables within the interior compartment. The adapter plate is connected to the splice tray and has a plurality of adapters for connecting the one or more cables to the distribution ports. The splice chip is connected to the splice tray and has a plurality of slots for receiving and routing the one or more cables. The housing includes a radiused wall for routing the cables within the interior compartment without bending the cables.Type: GrantFiled: April 26, 2023Date of Patent: April 30, 2024Assignee: Clearfield, Inc.Inventors: John P. Hill, Daniel J. Johnson, Randy T. VanHorn, Walter E. Power, II
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Patent number: 11971644Abstract: Reduction of output power of light with a wavelength converted is suppressed, which is caused by a pyroelectric effect that occurs when a temperature of a wavelength conversion element including a ferroelectric substrate is changed.Type: GrantFiled: November 12, 2019Date of Patent: April 30, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Koji Embutsu, Ryoichi Kasahara, Osamu Tadanaga, Takeshi Umeki, Takahiro Kashiwazaki, Takushi Kazama
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Patent number: 11966088Abstract: An optical fiber connector sub-assembly a ferrule holder configured to hold a ferrule at a front portion of an optical fiber connector, a ferrule housing configured to slidingly receive the ferrule holder and configured to be coupled to an end of a fiber optic cable that includes an optical fiber, and a spring configured to be nonrotatably coupled with the ferrule holder and the ferrule housing. The spring is configured to prevent the ferrule from rotating relative to the end of the fiber optic cable while permitting the ferrule holder to slide axially relative to the ferrule housing, and the spring is configured to reduce a load on the ferrule when a load is applied to the fiber optic cable so as to prevent degradation of a signal being transmitted by the fiber.Type: GrantFiled: April 11, 2022Date of Patent: April 23, 2024Assignee: PPC BROADBAND FIBER LTD.Inventors: Kim Leeson, Shaun Trezise
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Patent number: 11960115Abstract: An optical fiber comprises a glass fiber comprising a core and a cladding, and a coating resin layer covering the outer periphery of the glass fiber, wherein the average linear expansion coefficient of the coating resin layer at ?50° C. or more and 0° C. or less is 3.3×10?5/° C. or more and less than 9.0×10?5/° C.Type: GrantFiled: April 30, 2020Date of Patent: April 16, 2024Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Katsushi Hamakubo, Kazuyuki Sohma, Tatsuya Konishi
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Patent number: 11953766Abstract: Implementations disclosed herein provide for devices and methods for obtaining parity time (PT) symmetric directional couplers through improved phase tuning, along with separate optical gain and optical loss tuning. The present disclosure integrates phase tuning and optical gain/loss tuning structures into waveguides of directional couplers disclosed herein. In some examples, directional couplers disclosed herein integrate one or more hybrid metal-oxide-semiconductor capacitors (MOSCAPs) formed by a dielectric layer between two semiconductor layers that provide for phase tuning via plasma dispersion and/or carrier accumulation depending on voltage bias polarity, and one or more optically active medium that provide for optical gain or loss tuning depending on voltage bias polarity.Type: GrantFiled: June 17, 2022Date of Patent: April 9, 2024Assignee: Hewlett Packard Enterprise Development LPInventors: Stanley Cheung, Geza Kurczveil, Yuan Yuan, Xian Xiao, Raymond G. Beausoleil
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Patent number: 11953685Abstract: There is disclosed a waveguide for use in an augmented reality or virtual reality display. The waveguide comprises a plurality of optical structures in a photonic crystal. The plurality of optical structures are arranged in an array to provide at least two diffractive optical elements. Each of the two diffractive optical elements is configured to receive light from an input direction and couple it towards the other diffractive optical element which can then act as an output diffractive optical element, providing outcoupled orders towards a viewer. The plurality of optical structures respectively have a shape, when viewed in the plane of the waveguide, comprising twelve substantially straight sides, six of the sides having respective normal vectors at a first angle, and the other six of the sides having respective normal vectors at a second angle which is different to the first angle.Type: GrantFiled: February 3, 2020Date of Patent: April 9, 2024Assignee: Snap Inc.Inventors: Arseny Alexeev, Sebastien De Cunsel, Sophia Fox, Choon How Gan, Ciaran Phelan, Gleb Siroki, Mohmed Salim Valera, Kai Wang
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Patent number: 11953804Abstract: Embodiments herein describe generating signals for stabilizing a frequency comb using a PIC that contains a two-segment supercontinuum generator waveguide (SGW). A first segment of the SGW is designed to spread the spectrum of the frequency comb so that a significant portion of the spectral intensity of the frequency comb is at double the original frequency of the frequency comb. A second segment of the SGW is designed to spread the spectrum of the frequency comb so that a significant portion of the spectral intensity of the frequency comb is at a frequency of a reference laser.Type: GrantFiled: August 15, 2023Date of Patent: April 9, 2024Assignee: Vector Atomic, Inc.Inventors: Abijith Sudarsan Kowligy, Arman Cingoz, Jonathan David Roslund
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Patent number: 11953738Abstract: The present invention discloses a display including a display panel and a light redirecting film disposed on the viewing side of the display panel. The light redirecting film comprises a light redistribution layer, and a light guide layer disposed on the light redistribution layer. The light redistribution layer includes a plurality of strip-shaped micro prisms extending along a first direction and arranged at intervals and a plurality of diffraction gratings arranged at the bottom of the intervals between the adjacent strip-shaped micro prisms, wherein each of the strip-shaped micro prisms has at least one inclined light-guide surface, and the bottom of each interval has at least one set of diffraction gratings, and the light guide layer is in contact with the strip-shaped micro prisms and the diffraction gratings.Type: GrantFiled: March 29, 2022Date of Patent: April 9, 2024Assignee: BenQ Materials CorporationInventors: Cyun-Tai Hong, Yu-Da Chen, Hsu-Cheng Cheng, Meng-Chieh Wu, Chuen-Nan Shen, Kuo-Jung Huang, Wei-Jyun Chen, Yu-Jyuan Dai
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Patent number: 11940305Abstract: Example embodiments include an optical interrogation system with a sensing fiber having a single core, the single core having multiple light propagating modes. Interferometric apparatus probes the single core multimode sensing fiber over a range of predetermined wavelengths and detects measurement interferometric data associated with the multiple light propagating modes of the single core for each predetermined wavelength in the range. Data processing circuitry processes the measurement interferometric data associated with the multiple light propagating modes of the single core to determine one or more shape-sensing parameters of the sensing fiber from which the shape of the fiber in three dimensions can be determined.Type: GrantFiled: August 30, 2022Date of Patent: March 26, 2024Assignee: Intuitive Surgical Operations, Inc.Inventors: Mark E. Froggatt, Dawn K. Gifford, Eric E. Sanborn, Alexander K. Sang
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Patent number: 11940678Abstract: An optical modulator includes a substrate, a first dielectric layer over the substrate, a rib waveguide including a PN junction on the first dielectric, a second dielectric layer over the rib waveguide and a stressor layer including a metal, where the first or the second dielectric is between the stressor layer and the PN junction.Type: GrantFiled: December 22, 2020Date of Patent: March 26, 2024Assignee: Intel CorporationInventors: Mengyuan Huang, David Patel, Kejia Li, Wei Qian, Ansheng Liu
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Patent number: 11940651Abstract: A light guide comprising a polymeric layer at least 25 percent transmissive over at least a 30 nm bandwidth in a wavelength range from 180 to 280 nm over a distance of at least 100 micrometers and visible light transparent reflecting layers (UV-C mirror) that are at least 50 percent reflective over at least 30 nm bandwidth in a wavelength range from 180 to 280 nm over an incident light angle of 0 to 90 degrees and that are at least 25 percent transmissive of visible light over at least 30 nm bandwidth in a wavelength range of 400 to 800 nm over an incident light angle of 0 to 90 degrees. The light guide is useful, for example, for antimicrobial surfaces.Type: GrantFiled: December 23, 2019Date of Patent: March 26, 2024Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Timothy J. Hebrink, Stephen P. Maki, Michael E. Griffin, Anna C. Hamlin, Justin M. Mazzoni, Christopher A. Merton, Matthew T. Scholz
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Patent number: 11931977Abstract: A method of fabricating a multi-core polymer optical fibre comprises arranging optical fibre preforms in a stack, the optical fibre preforms each comprising a polymer core and polymer cladding surrounding the polymer core; and drawing and bonding the stack to form the multi-core polymer optical fibre. Any contaminants or impurities which collect on outer surfaces of the preforms may be confined to boundaries between the preforms, which may avoid attenuation of signals passed through the cores while at the same time reducing crosstalk between cores of the final manufactured fibre. Also provided is a multi-core polymer optical fibre obtainable by the method.Type: GrantFiled: March 31, 2022Date of Patent: March 19, 2024Assignee: Microsoft Technology Licensing, LLCInventors: Paolo Costa, Gilberto Brambilla, Kai Shi, Hitesh Ballani, Richard James Baca
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Patent number: 11927809Abstract: The present disclosure relates to a hardened power and optical connection system for use with hybrid cables. The hardened power and optical connection system includes electrical pin and socket contacts for providing power connections, and ferrules for providing optical connections. The hardened power and optical connection system has an integrated fiber alignment provided through a mating relationship between a plug and a socket.Type: GrantFiled: May 20, 2021Date of Patent: March 12, 2024Assignee: CommScope Technologies LLCInventors: Dwight A. Bretz, Robert Charles Flaig, Thomas P. Huegerich, Michael Lawrence Gurreri
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Patent number: 11927801Abstract: Structures for a waveguide core and methods of forming such structures. The structure comprises a stacked waveguide core including a first waveguide core and a second waveguide core stacked with the first waveguide core, and a layer adjacent to the stacked waveguide core. The layer comprises a material having a refractive index that is variable in response to a stimulus.Type: GrantFiled: August 3, 2022Date of Patent: March 12, 2024Assignee: GlobalFoundries U.S. Inc.Inventors: Yusheng Bian, Abdelsalam Aboketaf
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Patent number: 11921342Abstract: An outdoor cable pathway splice comprises a splice tape comprising a first adhesive layer and a reinforcing layer disposed on one major surface of the adhesive layer. The first adhesive layer is capable of adhering to a concrete or asphalt surface. The splice tape is configured to join first and second distribution cabling tapes in an end-to-end manner when deployed. Each distribution cabling tape includes a continuous lengthwise channel configured to receive at least one distribution cable, wherein the at least one distribution cable is covered by the splice tape when deployed.Type: GrantFiled: September 14, 2020Date of Patent: March 5, 2024Assignee: CORNING RESEARCH & DEVELOPMENT CORPORATIONInventors: David Montalion Dupuis, Cary Alan Kipke, Donald Kent Larson
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Patent number: 11921327Abstract: A cable management arrangement (1000) is disclosed. In one aspect, a plurality of cables (1002) extending between first and second ends is provided. The arrangement (1000) can also include a supporting sheet (1004) having a first side and a second side, wherein the plurality of cables (1002) is removably adhered to the supporting sheet first side by a first adhesive (1010). A second adhesive (1012) can be provided on at least a portion of the supporting sheet second side and a protection sheet (1014) can be provided to cover the second adhesive (1012). A protection sheet (1014) can be provided that is removable from the supporting sheet (1004) to allow the supporting sheet (1004) to be adhered to a surface. A telecommunications arrangement is also disclosed in which the aforementioned cable management arrangement (1000) is mounted to a telecommunications tray (112) via the second adhesive (1012).Type: GrantFiled: May 6, 2022Date of Patent: March 5, 2024Assignee: CommScope Connectivity Belgium BVBAInventors: Johan Geens, Pieter Vermeulen, Bart Vos
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Patent number: 11914211Abstract: An optical connector assembly includes an optical component assembly, inner and outer optical fibers, a componentry cover, and a connector. The optical component assembly includes an optical unit. The inner and the outer optical fibers are on opposing sides of the optical unit such that the optical unit receives a first optical signal from the inner optical fiber and the outer optical fiber receives a second optical signal from the optical unit or such that the optical unit receives the second optical signal from the outer optical fiber and the inner optical fiber receives the first optical signal from the optical unit. The componentry cover encapsulates an entirety of the optical unit and portions of the inner and the outer optical fibers. The connector includes a portion of first outer optical fiber that is exposed to route the second optical signal.Type: GrantFiled: August 6, 2021Date of Patent: February 27, 2024Assignee: Go!Foton Holdings, Inc.Inventors: Kenichiro Takeuchi, Haiguang Lu, David Zhi Chen, Kenichiro Nakamura
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Patent number: 11911805Abstract: An optical connector cleaning tool includes a fitting portion (44) fitted in the first or second hole (36, 37) of a connection component (32) into which a compact dual core optical connector is fitted on one end side and a cleaning medium (45) projecting from the fitting portion (44). The fitting portion (44) is formed to have a shape by which the fitting portion (44) is fitted in the first or second hole (36, 37) in each of the first and second postures as postures shifted through 180° with respect to as the center the middle (P2) of a virtual straight line connecting the centers of the two ferrules when viewed from an axial direction of the compact dual core optical connector. The fitting portion (44) contacts one ferrule in a state in which the fitting portion (44) is set in the first posture. The fitting portion (44) contacts the other ferrule in a state in which the fitting portion (44) is set in the second posture.Type: GrantFiled: January 22, 2020Date of Patent: February 27, 2024Assignees: NTT ADVANCED TECHNOLOGY CORPORATION, SENKO ADVANCED COMPONENTS, INC.Inventors: Etsu Hashimoto, Yoshiaki Haga, Kazutoshi Ando, Yohei Omodaka
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Patent number: 11914267Abstract: A laser source includes a first laser device configured to generate a first laser beam having a first wavelength, a second laser device configured to generate a second laser beam having a second wavelength, which is different from the first wavelength, and a non-linear crystal configured to receive simultaneously the first and second laser beams and to generate a third laser beam that has a third wavelength, which is larger than each of the first and second wavelengths. The non-linear crystal has a length and a width, and a variable poling period is distributed across the width so that the third wavelength varies within a given wavelength range based on an incident position of the first and second laser beams along the width of the non-linear crystal.Type: GrantFiled: May 4, 2021Date of Patent: February 27, 2024Assignees: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY, POLITECNICO DI MILANOInventors: Mohammad Khaled Shakfa, Marco Lamperti, Marco Marangoni, Aamir Farooq
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Patent number: 11906802Abstract: An apparatus includes a substrate that includes one or more routing layers, and an optical module coupled to the substrate. The optical module includes a photonic integrated circuit (PIC) and electronic integrated circuit (EIC), wherein the photonic integrated circuit is at least partially embedded within the substrate. The apparatus further includes a fiber optic coupler coupled to at least one of the substrate or PIC, wherein the PIC is configured to transmit or receive an optical signal via the fiber optic coupler.Type: GrantFiled: May 10, 2022Date of Patent: February 20, 2024Assignee: Avago Technologies International Sales Pte. LimitedInventors: Mayank Mayukh, Sam Zhao, Sam Karikalan, Reza Sharifi, Liming Tsau, Arun Ramakrishnan, Dharmendra Saraswat