Patents Examined by Chris H. Chu
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Patent number: 11795100Abstract: A composition for glass, and aluminosilicate glass, preparation method therefor, and use thereof. In molar percentage, in the composition, the total content of SiO2, B2O3, P2O5, GeO2 and TeO2 is 60˜85 mol %; the total content of Al2O3 and Ga2O3 is 3˜20 mol %; the total content of ZnO and Y2O3 is 0.1˜5 mol %; and the total content of alkaline earth metal oxide is 4˜30 mol %. The glass has a high strain point, a low melting temperature, and a high thermal expansion coefficient, has good toughness, and is suitable for large-scale industrial production.Type: GrantFiled: November 14, 2018Date of Patent: October 24, 2023Assignees: TUNGHSU TECHNOLOGY GROUP CO., LTD., TUNGHSU GROUP CO., LTD.Inventors: Qing Li, Guangtao Zhang, Junfeng Wang, Xiaoyi Wang, Dongcheng Yan, Lihong Wang, Quan Zheng
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Patent number: 11796750Abstract: An optical cable includes a plurality of buffer tubes and an outer jacket surrounding the plurality of buffer tubes. Each of the plurality of buffer tubes includes a buffer tube jacket surrounding a plurality of flexible ribbons. The buffer tube jacket includes a first deformable material that has undergone permanent plastic deformation during formation of the optical cable to conform to an irregular axial cross-sectional shape of each respective plurality of flexible ribbons. Each flexible ribbon includes a plurality of optical fibers and a first longitudinal length. For each flexible ribbon, each optical fiber of the plurality of optical fibers is attached to an adjacent optical fiber of the plurality of optical fibers along a bond region comprising a second longitudinal length that is less than the first longitudinal length.Type: GrantFiled: January 31, 2022Date of Patent: October 24, 2023Assignee: PRYSMIAN S.P.A.Inventors: Ben H. Wells, Ehsan Fallahmohammadi, Brian G. Risch, Clint Nicholaus Anderson, John R. Sach, Jeffrey Scott Barker
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Patent number: 11774681Abstract: A device including a waveguide having a first waveguide surface and a second waveguide surface parallel to the first waveguide surface is disclosed. The device may include a first light coupling device operatively coupled to the waveguide. The first light coupling device may include a first duct structure and a second duct structure oriented to reflect in-coupled light. Each of the first duct structure and the second duct structure may include a first planar region and a second planar region parallel to the first planar region and a first surface and a second surface parallel to the first surface. The device may also include a second light coupling device disposed between the first waveguide surface and the second waveguide surface. The second light coupling device may be positioned to receive reflected in-coupled light from the first light coupling device.Type: GrantFiled: June 18, 2021Date of Patent: October 3, 2023Assignee: Akonia Holographics LLCInventors: Mark R. Ayres, Friso Schlottau, Adam Urness, Kenneth E. Anderson
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Patent number: 11754796Abstract: Fiber optic equipment that supports independently translatable fiber optic modules and/or fiber optic equipment trays containing one or more fiber optic modules is disclosed. In some embodiments, one or more fiber optic modules are disposed in a plurality of independently translatable fiber optic equipment trays which are received in a tray guide system. In this manner, each fiber optic equipment tray is independently translatable within the guide system. One or more fiber optic modules may also be disposed in one or more module guides disposed in the fiber optic equipment trays to allow each fiber optic module to translate independently of other fiber optic modules in the same fiber optic equipment tray. In other embodiments, a plurality of fiber optic modules are disposed in a module guide system disposed in the fiber optic equipment that translate independently of other fiber optic modules disposed within the module guide system.Type: GrantFiled: October 12, 2021Date of Patent: September 12, 2023Assignee: Corning Optical Communications LLCInventors: Terry Lee Cooke, David Lee Dean, Jr., Juan Miguel Gonzalez Covarrubias, Elmer Mariano Juarez, Tory Allen Klavuhn, Manuel Alejandro Lopez Sanchez, Juan Garcia Martinez
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Patent number: 11747620Abstract: Provided a backlight unit including a light source and a light guide structure configured to guide the light emitted from the light source, the light guide structure includes a first coupler layer including a first output coupler configured to expand light in a first direction and output the expanded light in the first direction to the outside of the light guide structure, and a first expansion coupler configured to expand the light in a second direction perpendicular to the first direction and provide the expanded light in the second direction to the first output coupler, and a second coupler layer including a second output coupler configured to expand light in the first direction and output the expanded light to the outside of the light guide structure, and a second expansion coupler configured to expand light in the second direction and provide the expanded light to the second output coupler.Type: GrantFiled: March 5, 2020Date of Patent: September 5, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chilsung Choi, Hoon Song, Hongseok Lee
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Patent number: 11733451Abstract: A hollow-core anti-resonant-reflecting fibre (HC-AF) includes a hollow-core region, an inner cladding region, and an outer cladding region. The hollow-core region axially extends along the HC-AF. The inner cladding region includes a plurality of anti-resonant elements (AREs) and surrounds the hollow-core region. The outer cladding region surrounds the inner cladding region. The hollow-core region and the plurality of AREs are configured to provide phase matching of higher order hollow-core modes and ARE modes in a broadband wavelength range.Type: GrantFiled: January 25, 2022Date of Patent: August 22, 2023Assignee: Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V.Inventors: Philip Russell, Patrick Uebel, Michael Henoch Frosz
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Patent number: 11714234Abstract: An optical waveguide device includes a pair of waveguides. One of the waveguides includes a first core formed in a conversion region and a third core formed in an exit region. The other of waveguides includes a second core formed in the conversion region and a fourth core formed in the exit region. Cross-sectional areas of the first and second cores are different from each other at an input end. Distributions of a refractive index of the first and second cores are respectively asymmetric in a perpendicular direction. A quantitative relation provided at the input end between an effective refractive index of an odd mode of TE0 and an effective refractive index of an even mode of TM0 is opposite to the quantitative relation provided at the output end. Cross-sectional areas of the third and fourth cores are different from each other at an output end.Type: GrantFiled: November 8, 2021Date of Patent: August 1, 2023Assignee: FUJITSU OPTICAL COMPONENTS LIMITEDInventor: Akira Oka
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Patent number: 11686910Abstract: A wall box for indoor and outdoor, comprising a box body, a box cover and a cable reversing structure for fixing on the wall. Wire inlet holes and wire outlet holes are arranged on both sides of the box body, the wire inlet hole is equipped with an optical fiber connector for receiving signals, and the wire outlet hole is equipped. with an adapter for receiving signals. An accommodating cavity is formed inside the box body, which is provided with a first opening on the upper part of the accommodating cavity and is covered on the upper side of the first opening of the accommodating cavity The accommodating cavity is fixed with a cable management structure. A sealing ring is arranged at the first opening and protrudes from the plane height of the first opening. A box body fixing structure is arranged on the outside of the box body.Type: GrantFiled: May 10, 2022Date of Patent: June 27, 2023Assignee: Huizhou Fibercan Industrial Co., LtdInventor: Yaole Li
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Patent number: 11681095Abstract: Disclosed is a Chinese knot-like porous fiber core ultra-high birefringence THz optical fiber. The optical fiber comprises a substrate, claddings and fiber cores, wherein the claddings and the fiber cores are arranged in the substrate, and the fiber cores are embedded in the centers of the claddings; and the fiber core comprises a first fiber core region, a second fiber core region and a third fiber core region, the center of the first fiber core region 4 serves as the origin of coordinates, and the first fiber core region 4 is composed of six regular hexagon units with overlapped boundaries in the x-axis direction. In the present disclosure, the fiber core comprises a first fiber core region, a second fiber core region and a third fiber core region, and the three regions jointly form a fiber core region of a Chinese knot-like porous fiber core.Type: GrantFiled: May 25, 2022Date of Patent: June 20, 2023Assignee: Xi'an University of Posts & TelecommunicationsInventor: Zhanqiang Hui
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Patent number: 11674386Abstract: The present invention discloses a logging encapsulated optical-fiber duct cable and a manufacturing method thereof. The encapsulated optical-fiber duct cable mainly comprises an external encapsulation layer. At least one armor tube is arranged in the encapsulation layer. An optical fiber protective tube is arranged in each armor tube. A filling layer is arranged in a space between the optical fiber protective tube and the armor tube. An optical fiber is arranged in the optical fiber protective tube. The manufacturing method mainly comprises four steps: pavement of the optical fiber and formation of the protective tube, formation of the filling layer, formation of the armor tube and formation of the encapsulation layer. The optical-fiber duct cable of the present invention has the advantages of large length, high strength, good temperature tolerance, small signal transmission loss, high transmission speed and synchronous transmission of multiple signals.Type: GrantFiled: September 24, 2020Date of Patent: June 13, 2023Assignee: SHINDA(TANGSHAN) CREATIVE OIL & GAS EQUIPMENT CO., LTD.Inventors: Jianliang Duan, Jian Dong, Zhikun Liu, Yali Zhang, Xiang Liu, Yueqing Lin
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Patent number: 11668870Abstract: An optical communication device includes an excitation light source that outputs excitation light, a multiplexer that multiplexes signal light and the excitation light outputted from the excitation light source, a first nonlinear optical medium into which the multiplexed excitation light and the signal light are inputted, and a second nonlinear optical medium that is coupled to the first nonlinear optical medium in series and has an optical property different from that of the first nonlinear optical medium.Type: GrantFiled: February 4, 2020Date of Patent: June 6, 2023Assignee: FUJITSU LIMITEDInventor: Tomoyuki Kato
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Patent number: 11668931Abstract: Systems, devices, and methods for for exit pupil expansion in a curved lens with embedded light guide are described. Exit pupil expansion in a curved lens may be achieved with a light guide comprising an outcoupler with minimized second order diffraction, where the outcoupler applies an optical power to outcoupled light.Type: GrantFiled: September 18, 2019Date of Patent: June 6, 2023Assignee: GOOGLE LLCInventors: Thibault Louis David Leportier, Timothy Paul Bodiya
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Patent number: 11662513Abstract: Methods based on growth pattern models are utilized to determine patterns of reflective dots in optical combiners or other components for augmented reality (AR), head mounted displays (HMD) and/or head up display (HUD) applications. Optical combiners including the reflective dots arranged in the grown patterns are provided.Type: GrantFiled: January 9, 2020Date of Patent: May 30, 2023Assignee: META PLATFORMS TECHNOLOGIES, LLCInventor: Adrian Lee Stannard
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Patent number: 11644612Abstract: The invention relates to a waveguide and a polarisation splitter based on said waveguide, in which a rotation of an angle greater than zero is applied to a plurality of sections of a core material and a plurality of sections of a covering material, thereby achieving an independent control of the refractive indices of a zero-order transverse electric mode and a zero-order transverse magnetic mode. This document also describes a manufacturing method of said waveguide which allows the birefringence of the light that passes through the waveguide.Type: GrantFiled: June 27, 2019Date of Patent: May 9, 2023Assignees: UNIVERSIDAD DE MALAGA, CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICASInventors: Robert Halir, Jose Manuel Luque Gonzalez, Alaine Herrero Bermello, Alejandro Ortega Monux, Inigo Molina Fernandez, Juan Gonzalo Wanguemert Perez, Aitor Villafranca Velasco
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Patent number: 11630256Abstract: A diffractive waveguide stack includes first, second, and third diffractive waveguides for guiding light in first, second, and third visible wavelength ranges, respectively. The first diffractive waveguide includes a first material having first refractive index at a selected wavelength and a first target refractive index at a midpoint of the first visible wavelength range. The second diffractive waveguide includes a second material having a second refractive index at the selected wavelength and a second target refractive index at a midpoint of the second visible wavelength range. The third diffractive waveguide includes a third material having a third refractive index at the selected wavelength and a third target refractive index at a midpoint of the third visible wavelength range. A difference between any two of the first target refractive index, the second target refractive index, and the third target refractive index is less than 0.005 at the selected wavelength.Type: GrantFiled: August 23, 2021Date of Patent: April 18, 2023Assignee: Magic Leap, Inc.Inventors: Sharad D. Bhagat, Brian George Hill, Christophe Peroz, Chieh Chang, Ling Li
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Patent number: 11609383Abstract: A fiber optic adapter includes a first side wall (110), a second side wall (112) opposite the first side wall, a top wall (114), and a bottom wall (116) opposite the top wall. A cavity (10) is defined by the top wall, the bottom wall, the first side wall, and the second side wall, and an optical fiber alignment device (20) is situated in the cavity. The top wall (114) has an opening (117) therein, and a cover (118) is configured to selectively close the opening.Type: GrantFiled: May 23, 2019Date of Patent: March 21, 2023Assignee: CommScope Technologies LLCInventors: Danny Willy August Verheyden, Erwin Junius, Detlev Thalemann, Bernardus Johannes Nicolas Geling, Robert Charles Flaig
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Patent number: 11609389Abstract: A fiber array unit (FAU) includes a substrate, a plurality of optical fibers, and a lid. The substrate includes: an optical window extending through a layer of non-transparent material, a plurality of grooves, and an alignment protrusion configured to mate with an alignment receiver. The plurality of optical fibers are disposed in the plurality of grooves. The alignment protrusion is configured to align the plurality of optical fibers with an external device when mated with the alignment receiver. The plurality of optical fibers is disposed between the lid and the substrate.Type: GrantFiled: April 1, 2021Date of Patent: March 21, 2023Assignee: Cisco Technology, Inc.Inventors: Vipulkumar Patel, Kumar Satya Harinadh Potluri, Jock T. Bovington, Ashley J. Maker
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Patent number: 11609379Abstract: Structures for managing light polarization on a photonics chip and methods of forming a structure for managing light polarization on a photonics chip. A single-mode waveguiding structure is formed that includes a first waveguide core region and a second waveguide core region positioned above the first waveguide core region. The second waveguide core region includes a first section, a second section connected to the first section, and a third section connected to the second section. The second section has a first width at an intersection with the first section and a second width at an intersection with the third section. The second width is greater than the first width. The first and second waveguide core regions contain materials of different composition.Type: GrantFiled: October 21, 2020Date of Patent: March 21, 2023Assignee: GlobalFoundries U.S. Inc.Inventors: Yangyang Liu, Tymon Barwicz
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Patent number: 11592634Abstract: An optical fiber cable includes: optical fiber units each having optical fibers; a wrapping tube that wraps around the optical fiber units; a filling disposed inside the wrapping tube; and a sheath that covers the wrapping tube. The optical fiber units includes outer units that are disposed at an outermost layer of the optical fiber units. The outer units are twisted in an SZ shape around a cable central axis of the optical fiber cable. The filling is sandwiched between one of the outer units and the wrapping tube in a cross-sectional view.Type: GrantFiled: September 3, 2019Date of Patent: February 28, 2023Assignee: Fujikura Ltd.Inventors: Shinnosuke Sato, Mizuki Isaji, Koji Tomikawa, Ken Osato
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Patent number: 11577986Abstract: A method of forming an imaging fibre apparatus comprises arranging rods to form a plurality of stacks each comprising a respective plurality of rods, wherein: for each stack, the respective plurality of rods comprises rods having different core sizes, the rods of different core sizes being arranged in a selected arrangement, and the rods of different core sizes being arranged such that each stack has a respective selected shape; wherein the selected shape or shapes are such that the stacks stack together in a desired arrangement; the method further comprising: drawing each of the plurality of stacks; stacking together the plurality of drawn stacks together in the desired arrangement to form a further stack; drawing the further stack; and using the drawn further stack to form an imaging fibre apparatus, wherein the selected arrangement of the rods in each stack and the selected shape or shapes of the stacks are such that the further stack comprises a repeating pattern of rods of different core sizes.Type: GrantFiled: November 18, 2021Date of Patent: February 14, 2023Assignee: University of BathInventor: James Stone