Patents Examined by Jerry M Blevins
  • Patent number: 10705353
    Abstract: A pupil-replicating waveguide suitable for operation with a coherent light source is disclosed. A waveguide body has opposed surfaces for guiding a beam of image light. An out-coupling element is disposed in an optical path of the beam for out-coupling portions of the beam at a plurality of spaced apart locations along the optical path. Electrodes are coupled to at least a portion of the waveguide body for modulating an optical path length of the optical path of the beam to create time-varying phase delays between the portions of the beam out-coupled by the out-coupling element.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: July 7, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Andrew Maimone, Andrew Ouderkirk, Hee Yoon Lee, Ningfeng Huang, Maxwell Parsons, Scott Charles McEldowney, Babak Amirsolaimani, Pasi Saarikko, Wanli Chi, Giuseppe Calafiore, Alexander Koshelev, Barry David Silverstein, Lu Lu, Wai Sze Tiffany Lam, Gang Li, Stephan Lutgen, Francois Olivier, David Massoubre
  • Patent number: 10705308
    Abstract: A breakout assembly for use in furcating optic fibers, the breakout assembly including a finished furcation tube assembly having inner tubes and strength filaments having been bonded together using a bonding substance to form a bonded portion, the bonded portion being connectable to a housing of the breakout assembly for simultaneously anchoring both the tubes and strength filaments of the furcation tube assembly to the housing.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: July 7, 2020
    Assignee: AFL IG LLC
    Inventor: Artur Bureacov
  • Patent number: 10705309
    Abstract: One embodiment includes an optical connection apparatus, including an optical cable, and a fiber-attach-latch connector terminating the optical cable, and comprising a connector housing including a latch element, the connector housing being configured to be reversibly inserted into a connector receptable of an optical module having an optical transceiver, and a connector boot connected to the connector housing and disposed around a part of the optical cable, wherein at least part of the connector housing is formed from radio-frequency (RF) electromagnetic (EM) radiation absorbing material configured to absorb RF EM interference generated by the optical module.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: July 7, 2020
    Inventors: Pavel Vilner, Avner Badihi, Liza Nouzman, Lena Minz
  • Patent number: 10698163
    Abstract: Examples herein relate to polarization diversity optical interface assemblies including a single mode optical fiber and first and second grating couplers disposed on a substrate. The first and second grating couplers are coupled to first and second waveguides, respectively. The assemblies further includes an optical connector to couple light between the single mode optical fiber and each of the first and second grating couplers. The optical connector includes a ferrule and a walk-off crystal. The ferrule is coupled to a portion of the single mode optical fiber. The walk-off crystal is configured to spatially separate the light into first and second orthogonal polarization modes prior to passing through the respective first and second grating couplers and/or combine the first and second polarization modes of the light prior to passing through the single mode optical fiber.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: June 30, 2020
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Sagi Mathai, Wayne Victor Sorin, Marco Fiorentino, Michael Renne Ty Tan
  • Patent number: 10684437
    Abstract: A connector closure for fiber optical cables includes a base portion having first and second compartments. One of the first and second compartments is designed to have a cover or door that allow selective access, while the other compartment signed for only authorized access. The connector closure features universal mounting arrangements, e.g., aerial, surface/wall, pedestal, or vault arrangements. Further, the closure may incorporate a splice enclosure.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: June 16, 2020
    Inventor: Steven E. Kaplan
  • Patent number: 10684421
    Abstract: Disclosed is a gravity-adapted optical-fiber-connector comprising a gravity-adapted block and at least one gravity connector each including a fiber-stub; tail handle; rear seat being clamped and fixed by gravity-adapted block; elastic device being sleeved on a portion of excircle surface of tail handle and limited by an end face of rear seat and that of tail handle; outer sleeve and optical cable; gravity of gravity-adapted block is applied to elastic device through the end face of rear seat, after the elastic device is compressed, a spring having identical magnitude and direction with the gravity is generated and acted on the end face of tail handle, such that a physical butt-joint-surface of fiber-stub is always applied a preload about the gravity. The gravity-adapted optical-fiber-connector has stable optical-fiber coupling efficiency and coupling performance.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: June 16, 2020
    Assignee: Accelink Technologies Co., Ltd.
    Inventors: Xiaobo Zhao, Xinhai Zhu, Zhechi Lu, Wenchuang Gao, Yi Jiang, Benqing Quan, Yuxiang Yang
  • Patent number: 10684418
    Abstract: The use of microresonators with sharp corners (rectangular and square-shaped) can be limited by severe energy loss at the corners. The effect of incorporating fillet design at sharp corners (rounding of corners) of such single mode optical microresonators is described. The effect on quality factor, free spectral range (“FSR”), and energy loss for varying values of fillet radii are quantified and compared with standard circular microring resonator. It is shown that the selection of optimum fillet radius for sharp-cornered microresonators provide higher quality factor than that of the conventional circular resonators.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: June 16, 2020
    Assignees: New York University, New York Univeristy in Abu Dhabi Corporation
    Inventors: Prabodh Panindre, Sunil Kumar
  • Patent number: 10677983
    Abstract: Disclosed herein is an optical fiber having an optically uniform coating having no physical defects in the coating greater than 100 micrometers in size over a length of 50 meters or greater.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: June 9, 2020
    Assignee: OFS Fitel, LLC
    Inventor: Paul S Westbrook
  • Patent number: 10670804
    Abstract: Waveguiding structures and methods of fabricating a waveguiding structure. The waveguiding structure includes a waveguide and an array of semiconductor fins that are arranged at least in part inside the waveguide.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: June 2, 2020
    Inventors: Yusheng Bian, Abu Thomas, Ajey Poovannummoottil Jacob
  • Patent number: 10670822
    Abstract: A patch panel may include a tray that is slidable between a retracted position and an extended position on tray supports and features for holding the tray in the retracted position and in the extended position. The patch panel may also include a cassette that is slidable on cassette supports, latches for engaging the cassette to block movement of the cassette and features for disengaging the latches.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: June 2, 2020
    Assignee: AFL Telecommunications LLC
    Inventor: Mark A. Vogel
  • Patent number: 10663671
    Abstract: An integrated fiber-ferrule useable as an optical coupling element includes a core directly contacting a cladding layer that has a lower index of refraction than that of the core, without an intervening adhesive. The cladding layer outer diameter is at least 100 times greater than that of the core, and matches an outer diameter of a standard ferrule. The integrated fiber-ferrule may be produced by drawing a glass preform into a cane, cutting the cane into sections, and shaping end faces of the cut sections (e.g., using a laser). To form a fiber optic assembly, a front end of an optical fiber core may be fusion spliced to a rear end of the core of the integrated fiber-ferrule. Use of an integrated fiber-ferrule permits reduction of core to fiber eccentricity, and reduction of connector insertion losses.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: May 26, 2020
    Assignee: Corning Research & Development Corporation
    Inventors: Ming-Jun Li, Qi Wu
  • Patent number: 10663660
    Abstract: An optical subassembly includes a planar dielectric waveguide structure that is deposited at temperatures below 400 C. The waveguide provides low film stress and low optical signal loss. Optical and electrical devices mounted onto the subassembly are aligned to planar optical waveguides using alignment marks and stops. Optical signals are delivered to the submount assembly via optical fibers. The dielectric stack structure used to fabricate the waveguide provides cavity walls that produce a cavity, within which optical, optoelectronic, and electronic devices can be mounted. The dielectric stack is deposited on an interconnect layer on a substrate, and the intermetal dielectric can contain thermally conductive dielectric layers to provide pathways for heat dissipation from heat generating optoelectronic devices such as lasers.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: May 26, 2020
    Assignee: POET Technologies, Inc.
    Inventors: Suresh Venkatesan, Loy Yee Lam
  • Patent number: 10663683
    Abstract: An optical communication cable bundle is provided. The cable bundle includes a bundle jacket having an inner surface defining a bundle passage and an outer surface defining an exterior surface of the cable bundle, and a plurality of optical fiber subunits located within the bundle passage and surrounded by the bundle jacket, each optical fiber subunit having a subunit jacket defining a subunit passage and a plurality of optical fibers located with the subunit passage. A thickness of the bundle jacket is less than a thickness of each of the subunit jackets and the bundle jacket is extruded tight around the subunit jackets to couple the subunits and the bundle jacket.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: May 26, 2020
    Inventors: Harold Edward Hudson, II, William Carl Hurley
  • Patent number: 10663670
    Abstract: An optical connector for connecting single mode optical fibers includes a ferrule that connects to and holds an optical fiber, and a resin optical element coupled to the ferrule and that includes a lens positioned relative to an end of the optical fiber held in the ferrule, and the lens is provided with an antireflection structure. When the optical connector is oppositely connected to another identical optical connector, the opposing optical elements are disposed such that a diverging light is emitted from the end of the optical fiber, transmitted through the lens, and emitted as a collimated beam of light, and the collimated beam of light is incident on an opposing lens of the opposing, identical optical connector and condensed onto an end of an opposing optical fiber of the opposing, identical optical connector.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: May 26, 2020
    Assignee: Konica Minolta, Inc.
    Inventors: Kazuhiro Wada, Yasushi Mizumachi
  • Patent number: 10656426
    Abstract: Systems, devices, and methods of manufacturing optical engines and laser projectors that are well-suited for use in wearable heads-up displays (WHUDs) are described. Generally, the optical engines of the present disclosure integrate a plurality of laser diodes (e.g., 3 laser diodes, 4 laser diodes) within a single, hermetically or partially hermetically sealed, encapsulated package. A grating waveguide combiner comprising a plurality of waveguides having grating couplers thereon may be used to combine beams of light emitted by the plurality of laser diodes into a coaxially superimposed aggregate beam. Such optical engines may have advantages over existing designs including, for example, smaller volumes, better manufacturability, faster modulation speed, etc. WHUDs that employ such optical engines and laser projectors are also described.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: May 19, 2020
    Assignee: North Inc.
    Inventors: Jörg Pierer, Rony Jose James, Stefan Mohrdiek, Martin Joseph Kiik, Syed Moez Haque, Douglas Raymond Dykaar
  • Patent number: 10656333
    Abstract: In an example, a photonic system includes a Si PIC with a Si substrate, a SiO2 box formed on the Si substrate, a first layer, and a second layer. The first layer is formed above the SiO2 box and includes a SiN waveguide with a coupler portion at a first end and a tapered end opposite the first end. The second layer is formed above the SiO2 box and vertically displaced above or below the first layer. The second layer includes a Si waveguide with a tapered end aligned in two orthogonal directions with the coupler portion of the SiN waveguide such that the tapered end of the Si waveguide overlaps in the two orthogonal directions and is parallel to the coupler portion of the SiN waveguide. The tapered end of the SiN waveguide is configured to be adiabatically coupled to a coupler portion of an interposer waveguide.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: May 19, 2020
    Assignee: II-VI Delaware Inc.
    Inventors: Daniel Mahgerefteh, Bryan Park, Jianxiao Chen, Xiaojie Xu, Gilles P. Denoyer, Bernd Huebner
  • Patent number: 10649158
    Abstract: Embodiments of the invention include an optoelectronic package that allows for in situ alignment of optical fibers. In an embodiment, the optoelectronic package may include an organic substrate. Embodiments include a cavity formed into the organic substrate. Additionally, the optoelectronic package may include an actuator formed on the organic substrate that extends over the cavity. In one embodiment, the actuator may include a first electrode, a piezoelectric layer formed on the first electrode, and a second electrode formed on the piezoelectric layer. According to an additional embodiment of the invention, the actuator may include a first portion and a second portion. In order to allow for resistive heating and actuation driven by thermal expansion, a cross-sectional area of the first portion of the beam may be greater than a cross-sectional area of the second portion of the beam.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: May 12, 2020
    Assignee: Intel Corporation
    Inventors: Johanna M. Swan, Aleksandar Aleksov, Sasha N. Oster, Feras Eid, Baris Bicen, Thomas L. Sounart, Shawna M. Liff, Valluri R. Rao
  • Patent number: 10641981
    Abstract: The present disclosure provides an optical fiber cable. The optical fiber cable includes a central strength member. The central strength member lies substantially along a longitudinal axis of the optical fiber cable. The optical fiber cable includes at least one buffer tube. The at least one buffer tube is stranded helically around the central strength member. Each of the at least one buffer tube encapsulates at least one optical fiber. The optical fiber cable includes a first layer. The first layer circumferentially surrounds a core of the optical fiber cable. The optical fiber cable includes a second layer. The second layer is formed of high density polyethylene. The optical fiber cable includes at least one set of water swellable yarn and a plurality of ripcords.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: May 5, 2020
    Inventors: Kishore Sahoo, Sravan Kumar, Kavya Chintada, Vikash Shukla, Venkatesh Murthy, Atul Mishra
  • Patent number: 10634854
    Abstract: A push-pull connection includes a push-pull boot connector and an adapter, which are connected together and retained with a latching mechanism. The push-pull boot connector includes a connector housing and a remote release push-pull strain relief boot. The connector housing, when pulled away from the mating face of the adapter, via the strain relief boot, will detach the latching mechanism.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: April 28, 2020
    Assignee: AFL IG LLC
    Inventors: Aran James Russell Davidson, Asher Leong Raven
  • Patent number: 10627579
    Abstract: A fiber optic cable splice device includes a sleeve, an inner tube received in the sleeve to allow passage of a fiber optic cable, and a limiting member coupled to the sleeve and limiting the limiting member in the sleeve. A casing is connected to the sleeve at a top end thereof, a joining portion extending sideward from a sidewall thereof, and a bent passage extending through the top end and the joining portion. A rotary connection member is rotatably positioned on the joining portion, and has a threaded plug. When the rotary connection member is rotated relative to the casing, the threaded plug is able to be threaded into a fitting device so that the fiber optic cable is connected to the fitting device.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: April 21, 2020
    Inventors: Shu-Hui Hsu, Yen-Chang Lee