Patents Examined by Ryan A Lepisto
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Patent number: 11681093Abstract: An optical probe imaging system includes an optical probe having a multicore optical fiber. Distal optics image light propagating in the multicore optical fiber so as to generate a light pattern on a sample that is based on a relative position of the cores. A distal motor causes the light pattern to traverse a path across the sample. An optical receiver includes a first receiver receiving light that has traversed the path across the sample from one of the at least two cores and a second receiver receiving light that has traversed the path across the sample from the other of the cores, such that the first receiver and the second receiver detect light in parallel. A processor maps relative position of the cores at the distal facet based on signals generated by the receiver.Type: GrantFiled: May 4, 2020Date of Patent: June 20, 2023Inventors: Eric Swanson, Anthony Kam
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Patent number: 11681101Abstract: A splice module includes a main splicing channel and a rework channel. The main splicing channel has an encapsulated section at which one or more initial splices can be stored. The main splicing channel also includes a non-encapsulated section through which trunk cable fibers of the initial splices extend. If re-splicing is needed, the trunk cable fibers can be accessed at the non-encapsulated section, cut, and re-spliced to a new connectorized pigtail or other optical fibers.Type: GrantFiled: October 14, 2020Date of Patent: June 20, 2023Assignee: Commscope Technologies, LLCInventors: David R. Wurst, Jacob C. Anderson, Paul M. Lawson
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Patent number: 11675127Abstract: Embodiments herein describe optical interposers that utilize waveguides to detect light. For example, in one embodiment, an apparatus is provided that includes an optical detector having a first layer. The first layer includes at least one of polysilicon or amorphous silicon. The first layer forms a diode that includes a p-doped region and an n-doped region. The apparatus further includes a waveguide optically coupled to the diode and disposed on a different layer than the first layer.Type: GrantFiled: July 16, 2021Date of Patent: June 13, 2023Assignee: Cisco Technology, Inc.Inventors: Sean P. Anderson, Vipulkumar Patel
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Patent number: 11675125Abstract: A single mode optical fiber is provided that includes a core region having an outer radius r1 and a maximum relative refractive index ?1max. The single mode optical fiber further includes a cladding region surrounding the core region, the cladding region includes a depressed-index cladding region, a relative refractive index ?3 of the depressed-index cladding region increasing with increased radial position. The single mode optical fiber has a bend loss at 1550 nm for a 15 mm diameter mandrel of less than about 0.75 dB/turn, a bend loss at 1550 nm for a 20 mm diameter mandrel of less than about 0.2 dB/turn, and a bend loss at 1550 nm for a 30 mm diameter mandrel of less than 0.005 dB/turn. Additionally, the single mode optical fiber has a mode field diameter of 9.0 microns or greater at 1310 nm wavelength.Type: GrantFiled: June 29, 2021Date of Patent: June 13, 2023Assignee: Corning IncorporatedInventors: Ming-Jun Li, Pushkar Tandon
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Patent number: 11675142Abstract: A ferrule includes: a ferrule body including a first body-side guide hole into which a first guide pin is inserted, a second body-side guide hole into which a second guide pin is inserted, and an optical fiber holder that holds an optical fiber; and a lens plate including a first plate-side guide hole into which the first guide pin is inserted, a second plate-side guide hole into which the second guide pin is inserted, a lens part, and an abutment surface that an end face of the optical fiber abuts. The first guide pin fits the first body-side guide hole and the first plate-side guide hole. The second guide pin fits one of the second body-side guide hole or the second plate-side guide hole.Type: GrantFiled: September 17, 2019Date of Patent: June 13, 2023Assignee: Fujikura Ltd.Inventors: Akihiro Nakama, Hirotaka Asada
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Patent number: 11668875Abstract: Periscope assemblies are provided which have a light path that travels in a first plane along the first waveguide, a second plane along the second waveguide that is parallel to the first plane, and along a third plane along the third waveguide that intersects the first plane and the second plane. In some examples the periscope assembly includes first and second carriers comprising respective first and second waveguides and defining respective first and second cavities in which a third carrier comprising a third waveguide is disposed and optionally includes an optical component. In some examples, the cavities are defined in one or more carriers on a mating surface, on a side opposite to the mating surface, or on a side perpendicular to a mating surface.Type: GrantFiled: March 31, 2020Date of Patent: June 6, 2023Assignee: Cisco Technology, Inc.Inventors: Ashley J. M. Erickson, Matthew J. Traverso
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Patent number: 11662519Abstract: A tunable element for an optical waveguide device, such as an Optical Phased Array (OPA), is described. Tunable element comprises three waveguide sections arranged such that light propagates through the first waveguide section, then through the second waveguide section and then through the third waveguide section, with light being either evanescently or directly coupled from one waveguide section to the next. The tunable element further comprises one or more resistive heating pad formed proximate to the second waveguide section. The first and third waveguide sections are formed from a first material and the second waveguide section is formed from a second, different material and the second material is more thermo-optically sensitive than the first material.Type: GrantFiled: October 18, 2019Date of Patent: May 30, 2023Assignee: ADVANCED MICRO FOUNDRY PTE. LTD.Inventors: Xianshu Luo, Guo-Qiang Lo
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Patent number: 11662527Abstract: An optical assembly includes a light source for providing a beam of light, a lens system configured to expand and collimate the beam of light, and a configurable beam injector, wherein the beam injector contains a first grid plate and a second grid plate to block individual beams of light. The first grid plate and the second grid plate may be configured such that each grid plate respectively corresponds to particular MEMS mirrors. The grid plates can be configured to have pathways that allow for beams of light to be passed through and other pathways which are blocked to prevent the passage of light. The first grid plate and second grid plate may thus block or allow for transmission of beams of lights to those particular MEMS mirrors. The second grid plate can be configured to be easily swappable during or removable to allow for a different set of beams of light, corresponding to a different set of MEMS mirrors, to be blocked.Type: GrantFiled: March 2, 2021Date of Patent: May 30, 2023Assignee: Google LLCInventors: Kevin Yasumura, Jill Berger
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Patent number: 11664848Abstract: An adjustable attenuation wrap plug for insertion into a signal port at an end product includes a housing with a protruding input prong and output prong, wherein a signal cable is coupled to the input prong and the output prong. The adjustable attenuation wrap plug further includes a ratchet mechanism at least partially disposed in the housing, wherein the ratchet mechanism is configurable to alter a shape of the signal cable.Type: GrantFiled: May 14, 2020Date of Patent: May 30, 2023Assignee: International Business Machines CorporationInventors: John S. Werner, Faezeh Gholami, Noah Singer, John Torok, Philip A. Sciuto, Arkadiy O. Tsfasman
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Patent number: 11662590Abstract: An eye tracker having a first waveguide for propagating illumination light along a first waveguide path and propagating image light reflected from at least one surface of an eye along a second waveguide path. At least one grating lamina for deflecting the illumination light out of the first waveguide path towards the eye and deflecting the image light into the second waveguide path towards a detector is disposed adjacent an optical surface of the waveguide.Type: GrantFiled: January 3, 2022Date of Patent: May 30, 2023Assignee: DigiLens Inc.Inventors: Milan Momcilo Popovich, Jonathan David Waldern, Alastair John Grant
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Patent number: 11656411Abstract: A monolithic fiber-lens array includes a number of optical fibers integrated into a fiber block and multiple lens elements integrated into a lens block. The fiber block is coupled to the lens block via a transparent adhesive layer, and the tips of the optical fibers are aligned with respective focal points of the lens elements.Type: GrantFiled: February 10, 2022Date of Patent: May 23, 2023Assignee: LOCKHEED MARTIN CORPORATIONInventor: Joseph Robert Buck, Jr.
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Patent number: 11650375Abstract: A ferrule for retaining a plurality of optical fibers includes a front end surface; a rear end surface; a plurality of fiber retaining holes; an accommodation hole; and a void portion. The fiber retaining holes each extend from the front end surface toward the rear end surface along a first direction. The accommodation hole is connected to the plurality of fiber retaining holes. The void portion is provided in a region around the plurality of fiber retaining holes. The fiber retaining holes include constant diameter portions extending from the front end surface along the first direction. The void portion is provided along the constant diameter portions, and is aligned with the constant diameter portions in a plane perpendicular to the first direction. A minimum value of a width in the plane of the void portion differs from an inner diameter of the constant diameter portion.Type: GrantFiled: January 24, 2020Date of Patent: May 16, 2023Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Fumiya Uehara, Masaki Omura, Takayuki Shimazu
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Patent number: 11646794Abstract: Fiber optic connectors are provided that include a substrate having a groove therein, an optical fiber that is at least partly in the groove, an optical mode field converter or other focusing reflector that is positioned to receive an optical signal that is output from the optical fiber and a housing that surrounds the substrate and the optical fiber.Type: GrantFiled: September 14, 2021Date of Patent: May 9, 2023Assignee: CommScope, Inc. of North CarolinaInventor: Abhijit Sengupta
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Patent number: 11644622Abstract: A reinforcing sleeve is a member for collectively reinforcing spliced portions of a plurality of optical fiber core wires disposed side by side. The reinforcing sleeve includes a heat-shrinkable tube, a heat-meltable member, a tension member, and so on. The heat shrinkable tube is a cylindrical member having an approximately circular cross section. The tension member and the heat-meltable member are inserted into the heat-shrinkable tube. The heat-meltable member is disposed on an upper part of the tension member. Also, an optical fiber dispersion portion is formed on a surface of the tension member on a side of the heat-meltable member in a cross section perpendicular to a longitudinal direction of the reinforcing sleeve. The optical fiber dispersion portion includes an inclined portion that is formed so as to separate away from the heat-meltable member as being closer to an end portion of a width direction in a cross section perpendicular to the longitudinal direction of the tension member.Type: GrantFiled: January 19, 2022Date of Patent: May 9, 2023Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Tomohiro Akiyama, Akio Tanabe
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Patent number: 11635577Abstract: A sealed terminal has a housing, a splice tray, and a faceplate. The housing has an interior compartment and a first perimeter flange defining an opening into the interior compartment. The splice tray is positioned in the interior compartment and is configured to support a module or a cartridge. The faceplate has a plurality of ports and a second perimeter flange extending at a perimeter edge of the faceplate. The sealed terminal also has at least one connection bracket and a gasket for connecting the housing and the faceplate to each other. The connection bracket has a slot receiving the first perimeter flange and the second flange in an abutting position. The gasket is positioned between the first perimeter flange and the second perimeter flange and configured to seal any gap therebetween.Type: GrantFiled: January 8, 2021Date of Patent: April 25, 2023Assignee: Clearfield, Inc.Inventors: John P. Hill, William J. Cruzen, David Joseph Johnsen, Daniel J. Johnson, Randy T. VanHorn, Brian K. Larson, Timothy John Kjolsing
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Patent number: 11635667Abstract: In various embodiments, a beam-parameter adjustment system and focusing system alters a spatial power distribution of a radiation beam, via thermo-optic effects, before the beam is coupled into an optical fiber or delivered to a workpiece.Type: GrantFiled: September 14, 2021Date of Patent: April 25, 2023Assignee: Panasonic Connect North America, division of Panasonic Corporation of North AmericaInventors: Parviz Tayebati, Francisco Villarreal-Saucedo, Bien Chann, Dat Nguyen, Michael Deutsch
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Patent number: 11630272Abstract: The photoelectric signal conversion and transmission device includes a photoelectric signal module and a fiber joint, matched and coupled together. A circuit board of the photoelectric signal module includes one or more connection bases. Light emission elements, light reception elements, and amplifiers are configured on a first coupling face of the connection based, and electrically connected by first and second wires. The fiber joint includes a number of fibers axially aligned with the light emission and reception elements. By having the light emission and reception elements and amplifiers configured on a same coupling face, their physical connection distance is reduced, thereby decreasing signal attenuation, enhancing signal transmission performance, and facilitating structural miniaturization.Type: GrantFiled: June 1, 2021Date of Patent: April 18, 2023Assignee: NIEN-YI INDUSTRIAL CORP.Inventors: Wen-Cheng Wu, Jing-Qing Chan, Guan-Shiou Chen, Zeng-Xin Guo
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Patent number: 11624888Abstract: A high density fiber enclosure system includes a chassis, cassette trays, an optional unification clip, cassettes, and an optional trunk cable management system. The chassis, cassette trays, and cassettes are configured such that individual cassettes may be installed, removed, and otherwise positioned for easy access by a user. The unification clip allows two adjacent cassette trays to be connected to one other such that cassette trays move as one unit. The trunk cable management system is designed to organize trunk cables and trunk cable furcation legs as well as relieve strain on the trunk cables and trunk cable furcation legs.Type: GrantFiled: July 29, 2021Date of Patent: April 11, 2023Assignee: Panduit Corp.Inventors: Jerry A. Wiltjer, Shaun P. Brouwer, Gregory L. Kuffel, Joel D. Kwasny, Kai C. Lui, Benjamin S. Novak, Joseph E. Sanders
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Patent number: 11624886Abstract: A drawer slide having first and second rails interconnected by a center rail. The center rail includes a spool configured to provide half-speed travel of the center rail relative to the travel of the first rail. The drawer slide is configured for use with a drawer assembly having a drawer and a chassis. The drawer assembly further includes a radius limiter secured to the center rail. The radius limiter travels at half-speed relative to the drawer. The radius limiter also automatically rotates relative to the travel of the drawer. The chassis includes sides including threaded backing plates, and mounting brackets. The mounting brackets include tri-lobed holes for receipt of a reciprocally shaped washer and a fastener for mounting the brackets to the chassis sides.Type: GrantFiled: February 25, 2022Date of Patent: April 11, 2023Assignee: CommScope Technologies LLCInventors: Kathleen M. Barnes, Justin R. Horton, Thomas C. Tinucci, Thomas L. Barnes
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Patent number: 11624942Abstract: Described herein are methods, systems, and apparatuses to utilize an electro-optic modulator including one or more heating elements. The modulator can utilize one or more heating elements to control an absorption or phase shift of the modulated optical signal. At least the active region of the modulator and the one or more heating elements of the modulator are included in a thermal isolation region comprising a low thermal conductivity to thermally isolate the active region and the one or more heating elements from a substrate of the PIC.Type: GrantFiled: June 16, 2021Date of Patent: April 11, 2023Assignee: OpenLight Photonics, Inc.Inventors: Robert Silvio Guzzon, Erik Norberg, Jonathan Edgar Roth