Patents Examined by Ryan Lepisto
  • Patent number: 11366276
    Abstract: Embodiments of an optical fiber cable are provided. The optical fiber cable includes at least one optical fiber, a buffer tube surrounding the at least one optical fiber, and at least one tensile element wound around the buffer tube. The at least one tensile element has a laylength of at least 200 mm. The optical fiber cable also includes an exterior jacket surrounding the tensile element. The exterior jacket is made up of at least one polyolefin, at least one thermoplastic elastomer, and at least one high aspect ratio inorganic filler. Further, the exterior jacket has an averaged coefficient of thermal expansion of no more than 120(10?6) m/mK.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: June 21, 2022
    Assignee: CORNING RESEARCH & DEVELOPMENT CORPORATION
    Inventors: Xiaole Cheng, Michael John Gimblet
  • Patent number: 11366266
    Abstract: An optical fiber includes a core, a first clad that is provided on an outer circumferential portion of the core and has a refractive index lower than that of the core, and a second clad that is provided on an outer circumferential portion of the first clad and has a refractive index lower than that of the first clad. In the optical fiber, a mode field diameter at a wavelength of 1.55 ?m is equal to or greater than 11.5 ?m, a cutoff wavelength is equal to or less than 1.53 ?m, a bending loss at a bending radius of 30 mm and a wavelength of 1.625 ?m is equal to or less than 2.0 dB/100 turns, and a delay time of transmission light per unit length at a wavelength of 1.55 ?m is equal to or less than 4.876 ?s/km.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: June 21, 2022
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yuto Sagae, Kazuhide Nakajima, Takashi Matsui
  • Patent number: 11360262
    Abstract: An integrated wavelength-selective filter device comprises a first optical element, for directing received radiation into a direction defined by a first angle, and a second optical element being a diffractive element configured for diffracting the directed radiation under a second angle. The second angle is such that for a single reference wavelength the diffracted radiation is directed into a propagation medium for advancing therein towards a predetermined position on the first optical element or on a further optical element for filtering radiation having a wavelength substantially matching the reference wavelength from radiation having a substantially different wavelength. The propagation medium is formed from a material that is different from any material of the substrate of the first and the second optical element.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: June 14, 2022
    Assignees: UNIVERSITEIT GENT, IMEC VZW
    Inventors: Roeland Baets, Eva Ryckeboer, Abdul Rahim, Anton Vasiliev, Xiaomin Nie
  • Patent number: 11353658
    Abstract: A multi-fiber splice protector includes a strength member having at least one wall arranged in a tubular shape with a longitudinal opening extending through the wall to permit passage of a coated optical fiber into an inner cavity, with a thermoplastic hotmelt material arranged in the inner cavity. The longitudinal opening has a first width between 1 and 2 times the diameter of one coated optical fiber, while the inner cavity has a second width that is significantly greater than the first width to permit fusion spliced optical fibers to be not exclusively arranged in a 1-D array in the inner cavity. A fiber optic cable assembly including a multi-fiber splice protector with thermoplastic hotmelt material encapsulating fusion splice joints is further provided. Additionally provided is a method for forming a fiber optic cable assembly.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: June 7, 2022
    Assignee: Corning Research & Development Corporation
    Inventor: Qi Wu
  • Patent number: 11353662
    Abstract: An electronically-managed optical fiber connection system is provided. A smart ferrule carrier comprises a plurality of ferrule bays configured to accept a tagged optical ferrule assembly. Each tagged optical ferrule assembly comprises an identification (ID) tag storing identification information for the optical ferrule assembly. A smart carrier board comprising a carrier controller is configured to read and/or write information to/from the ID tag of each tagged optical ferrule assembly. A smart carrier adapter is configured to accept a plurality of smart ferrule carriers, the smart carrier adapter including an adapter controller system. The adapter controller system includes an adapter controller configured to communicate with the carrier controller of each installed smart ferrule carrier and a system controller.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: June 7, 2022
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Kevin B. Leigh, John Norton
  • Patent number: 11353657
    Abstract: In various examples, a fiber-optic-splice enclosure may be suitable for use in various applications, environments, and use conditions. In at least some embodiments, the fiber-optic-splice enclosure includes an adjustable length, which may permit the fiber-optic-splice enclosure to be customized to fit various lengths of a spliced region. In a further aspect, the fiber-optic-splice enclosure may include a splice retainer to attenuate vibrational and other forces and reduce potential effects of those forces on the splice. Moreover, in some other aspects, the construction of the fiber-optic-splice enclosure may allow for relatively straightforward and efficient assembly. For example, a key and keyway configuration between different components of the fiber-optic-splice enclosure may permit the components to selectively slide relative to one another or be engaged to one another.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: June 7, 2022
    Assignee: Huntington Ingalls Industries, Inc.
    Inventors: Ibrahim Sahawneh, James Ragsdale, Jason P. Farmer
  • Patent number: 11347014
    Abstract: An optical fiber fan-out assembly includes multiple optical fibers arranged in a one-dimensional array in a transition segment in which spacing between fibers is varied from a first pitch (e.g., a buffered fiber diameter of 900 ?m) to a second pitch (e.g., a coated fiber diameter of 250 ?m). A polymeric material encapsulates the optical fibers in the transition segment, and the assembly further includes multiple optical fiber legs each terminated with a fiber optic connector. Optical fibers extending beyond a boundary of the polymeric material are subject to being mass fusion spliced to another group of multiple optical fibers, and the fusion splices encapsulated with polymeric material, to form a fiber optic cable assembly. Methods for fabricating multi-fiber assemblies providing fan-out functionality are further provided, and the need for furcation tubes is avoided.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: May 31, 2022
    Assignee: Corning Incorporated
    Inventor: Qi Wu
  • Patent number: 11340415
    Abstract: In one form, an organizing member for optical components includes an elongate body extending about a hollow interior portion and including a peripheral sidewall. The organizing member also includes an optical fiber routing surface extending from the peripheral sidewall toward the hollow interior portion, and a recessed portion is positioned between the peripheral sidewall and the hollow interior portion. The recessed portion includes a number of receptacles offset from the optical fiber routing surface and corresponding in configuration to a respective optical component positionable therein.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: May 24, 2022
    Assignee: II-VI DELAWARE, INC.
    Inventor: Eric Green
  • Patent number: 11342141
    Abstract: A system including ruggedized optic fiber cable assembly for use with an arc detection relay to protect electrical components from faults resulting in an arc flash. The cable assembly includes a pair of ruggedized ST connectors located at opposite ends of a ruggedized optical fiber cable. The cable includes an optical fiber core surrounded by a transparent gel layer and a transparent jacket surrounding the gel layer. Each ST connector includes a boot formed of a resilient material to provide shock absorption for the portion of the optical fiber cable extending through it. An accessory electronic cable is also provided, as are couplers, adapters for mounting the couplers onto walls, and sleeves with air pockets to enhance the ruggedness of the cable at points of stress, e.g., bends.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: May 24, 2022
    Inventor: Glen Payne
  • Patent number: 11333825
    Abstract: A method for manufacturing a capillary usable as part of a hollow-core photonic crystal fiber. The method includes obtaining a capillary having capillary wall including a first wall thickness; and chemically etching the capillary wall to reduce the wall thickness of the capillary wall. During performance of the etching, a control parameter is locally varied along the length of the capillary, the control parameter relating to reactivity of an etchant used in the etching, so as to control the etched wall thickness of the capillary wall along the capillary length. Also disclosed is a capillary manufactured by such a method and various devices including such a capillary.
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: May 17, 2022
    Assignee: ASML Netherlands B.V.
    Inventors: Hendrik Sabert, Paulus Antonius Andreas Teunissen
  • Patent number: 11333826
    Abstract: A silicon- and optical phased array-based integrated optically adjustable delay line, comprising, an optical phased array transmitting unit, a slab waveguide transmitting unit, and an optical phased array receiving unit that are sequentially arranged. By the optical phase control transmitting unit, the phase difference between channels is regulated and controlled via a phase shifter to change a far-field interference light spot and form a wave beam with directivity to regulate and control an incident angle of an optical signal entering the slab waveguide, thus changing the propagation path length of the optical signal. Finally, the optical signal is received by a corresponding optical phased array receiving unit to obtain different delay amounts. Large adjustable delay amount is realized and the delay line has the advantages of simple structure and control and high integration level with high application value in optical communication and microwave photonic and optical signal processing.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: May 17, 2022
    Assignee: Shanghai Jiao Tong University
    Inventors: Linjie Zhou, Wensheng Shan, Weihan Xu, Liangjun Lu, Jianping Chen, Jiao Liu
  • Patent number: 11333831
    Abstract: An optical circuit for routing a signal includes a coupler and first and second waveguides. The coupler has an input for the signal and has first and second outputs. The first waveguide has a first optical connection to the first output, and the second waveguide has a second optical connection to the second output. Both waveguides have the same propagation length. The first and second waveguides include different widths at the respective optical connections to the respective outputs. This coupler can be used with another input couplers, two additional waveguides, and two 2×2 output couplers to provide a 90-degree hybrid for mixing signal light and local oscillator light in a coherent receiver or the like.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: May 17, 2022
    Assignee: II-VI DELAWARE, INC.
    Inventor: Po Dong
  • Patent number: 11326946
    Abstract: Provided is a spectral sensor array, including: a planar waveguide on a substrate; a chirped input coupling grating, wherein the chirped input coupling grating comprises a transverse chirp to provide a spectrally selective coupling of incident light into the planar waveguide; an output coupling grating; and an array of photodetectors arranged to receive the light coupled out of the waveguide.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: May 10, 2022
    Inventors: Steven R. J. Brueck, Payman Zarkesh-Ha, Alexander Neumann
  • Patent number: 11327242
    Abstract: The present disclosure relates to a process by which an optical fiber is terminated with a ferrule to form an optical fiber connector assembly. The ferrule is heated at a heating temperature whereby the ferrule bore (and ferrule microhole) expands. The optical fiber is then inserted into the ferrule microhole. The ferrule then contracts when heat is no longer applied resulting in an interference fit between the optical fiber and the ferrule microhole based on the dimensions of the optical fiber and the ferrule microhole. The interference fit yields certain optical fiber characteristics within the optical fiber connector assembly. The present disclosure also relates to an optical fiber having an outer cladding comprising titania-doped silica and the resulting optical fiber characteristics.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: May 10, 2022
    Assignee: Corning Research & Development Corporation
    Inventors: Scott Robertson Bickham, Mark Alan McDermott, Pushkar Tandon
  • Patent number: 11327229
    Abstract: A fiber optic coupling device comprises an elastomeric body. The elastomeric body includes first and second sides with a deformable alignment passage extending there between. The deformable alignment passage is configured to elastically center opposing first and second optical fibers. The deformable alignment passage includes a first portion that is configured to receive the first optical fiber having a first core. The deformable alignment passage also includes an opposing second portion that is configured to receive the second optical fiber having a second core. The first portion and the opposing second portion of the alignment passage are defined by a common encompassing periphery, and meet at a common location within the alignment passage to present the core of the received first optical fiber in coaxial alignment with the core of the received second optical fiber.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: May 10, 2022
    Assignee: COMMSCOPE, INC. OF NORTH CAROLINA
    Inventor: Michael James Ott
  • Patent number: 11327222
    Abstract: The present disclosure provides an optical fibre. The optical fibre includes a core region, a primary trench region and a secondary trench region. The core region has a radius r1. In addition, the core region has a relative refractive index ?1. Further, the primary trench region has a relative refractive index ?3. Furthermore, the primary trench region has a curve parameter ?trench-1. Moreover, the secondary trench region has a relative refractive index ?4. Also, the secondary trench region has a curve parameter ?trench-2.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: May 10, 2022
    Assignee: STERLITE TECHNOLOGIES LIMITED
    Inventors: Anand Kumar Pandey, Apeksha Malaviya, Malleswara Rao Lanke, Srinivas Reddy
  • Patent number: 11326970
    Abstract: A passive microscopic Fabry-Pérot Interferometer (FPI) pressure sensor includes an optical fiber and a three-dimensional microscopic optical enclosure. The three-dimensional microscopic optical enclosure includes tubular side walls having lateral pleated corrugations and attached to a cleaved tip of the optical fiber to receive a light signal. An optically reflecting end wall is distally engaged to the tubular side walls to enclose a trapped quantity of gas that longitudinally positions the optically reflecting end wall in relation to ambient air pressure, changing a distance traveled by a light signal reflected back through the optical fiber.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: May 10, 2022
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventors: Jeremiah C Williams, Hengky Chandrahalim
  • Patent number: 11320596
    Abstract: A passive microscopic Fabry-Pérot Interferometer (FPI) sensor includes a three-dimensional microscopic optical structure formed on a cleaved tip of the optical fighter using a two-photon polymerization process on a photosensitive polymer by a three-dimensional micromachining device. The three-dimensional microscopic optical structure having a hinged optical layer pivotally connected to a distal portion of a suspended structure. A reflective layer is deposited on a mirror surface of the hinged optical layer while in an open position. The hinged optical layer is subsequently positioned in the closed position to align the mirror surface to at least partially reflect a light signal back through the optical fiber.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: May 3, 2022
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventors: Jeremiah Williams, Hengky Chandrahalim
  • Patent number: 11314024
    Abstract: A fiber optic connector deploys a latch lever release with an elastic rib. When the latch lever release is depressed down or toward the optical axis of the connector, a hook seated within a recess of the connector outer housing, the hook is lifted out of the recess thereby allowing the connector to be removed from the adapter port. A pivot point is formed between the main body of the latch lever release and the connector outer housing. Depressing the latch lever release distal of the pivot point at the trigger portion displaces the hook from the connector thereby allowing the user to remove the connector from a receptacle port, such as an adapter port.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: April 26, 2022
    Assignee: Senko Advanced Components, Inc.
    Inventors: Kim Man Wong, Man Ming Ho, Kazuyoshi Takano
  • Patent number: 11314030
    Abstract: A cable fixation bracket and methods for securing cables to a cable fixation bracket are disclosed. The cable fixation bracket can include a base portion extending between a pair of mounting structures. A plurality of t-shaped cable fixation projections extending orthogonally from the base portion can be provided, each of which is configured to support a cable and to accept a cable tie. In some examples, the fixation projections are tapered. The cable fixation bracket can also include a bridge portion supporting a plurality of bracket structures for anchoring aramid yarn of the cables. The bracket structures are configured such that aramid yarn of the cables can be wrapped around the bracket structures and returned to the fixation projections or such that the aramid yarn can be wrapped about a termination unit with the termination unit being mounted between a pair of adjacent cable structures.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: April 26, 2022
    Assignee: CommScope Connectivity Belgium BVBA
    Inventors: Eric Schurmans, Maarten Aerts, Karel VanWinkel, Frank De Blick, Johan Geens