Patents Examined by Ryan A Lepisto
  • Patent number: 10444436
    Abstract: An exemplary gas cell is adapted to provide wavelength stability to a coherent beam of light. An optic fiber is wound in a plurality winding turns where the optic fiber transports the coherent beam of light from an input fiber end to an output fiber end. An encapsulating material engages and holds the windings in a fixed structure. A plurality of slots define severed portions of the optic fiber windings generally transverse to the windings and portions of the encapsulating material so that the optic fiber is divided into a plurality of end to end segments with open space filling the slots between respective facing ends of the severed optic fibers. A wavelength reference gas is disposed within the open space of the slots so that the beam of light passes from the input fiber end through respective facing ends of the optic fiber segments and wavelength reference gas in the corresponding slots to traverse a path through the plurality of winding turns to the output fiber end.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: October 15, 2019
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventor: Ge Wang
  • Patent number: 10444435
    Abstract: A ribbon transition tool modifies a 200 ?m ribbon for splicing to a 250 ?m ribbon. A spreader comb is fixedly mounted at the front end of the base of the tool. A straight comb is slidably mounted to the base behind the spreader comb. The combs each have a plurality of fiber channels corresponding to the fibers in the fiber ribbon. At the front end of the spreader comb, the channels have a spacing matching the initial spacing of the fiber ribbon. At the rear end of the spreader comb and throughout the straight comb, the channels have a spacing matching the modified spacing. An anvil is mounted into the base so as to be movable between a lowered position, in which the anvil lies underneath the straight comb, and a raised position, in which the anvil fills the gap between the combs when they are separated.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: October 15, 2019
    Assignee: OFS FITEL, LLC
    Inventors: Denis Edward Burek, Yue Liang
  • Patent number: 10436968
    Abstract: In some embodiments, compositions and methods comprising reflective flowable materials, e.g., reflective liquids including reflective inks and/or liquid metals, are described. In some embodiments, a surface is contacted with a reflective flowable material, thereby forming a reflective layer on the surface. In some embodiments, the surface is a surface of a waveguide, for example a waveguide for a display device, and the flowable material coats surfaces of protrusions on the surface to form reflective diffractive optical elements. Some embodiments include a display device comprising a reflective layer of reflective flowable material.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: October 8, 2019
    Assignee: Magic Leap, Inc.
    Inventors: Marlon Edward Menezes, Jeffrey Dean Schmulen, Neal Paul Ricks, Victor Kai Liu, Zongxing Wang, David Carl Jurbergs
  • Patent number: 10429602
    Abstract: Certain embodiments of a fiber distribution hub include a swing frame pivotally mounted within an enclosure having a low profile. For example, the enclosure can have a depth of less than about nine inches. Termination modules can be mounted to the swing frame and oriented to slide at least partially in a front-to-rear direction to facilitate access to connectors plugged into the termination modules. Splitter modules and connector storage regions can be provided within the enclosure.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: October 1, 2019
    Assignee: COMMSCOPE TECHNOLOGIES LLC
    Inventors: Trevor D. Smith, Jonathan R. Kaml, Scott C. Kowalczyk
  • Patent number: 10429579
    Abstract: An optical fiber having a core comprising silica and greater than 1.5 wt % chlorine and less than 0.5 wt % F, said core having a refractive index ?1MAX, and a inner cladding region having refractive index ?2MIN surrounding the core, where ?1MAX>?2MIN.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: October 1, 2019
    Assignee: Corning Incorporated
    Inventors: George Edward Berkey, Dana Craig Bookbinder, Ming-Jun Li, Pushkar Tandon
  • Patent number: 10429601
    Abstract: A photonic integrated circuit package includes two arrays or sets of integrated comb laser modules that are bonded to a silicon interposer. Each comb laser of an array has a common or overlapping spectral range, with each laser in the array being optically coupled to a local optical bus. The effective spectral range of the lasers in each array are different, or distinct, as to each array. An optical coupler is disposed within the silicon interposer and is optically coupled to each of the local optical buses. An ASIC (application specific integrated circuit) is bonded to the silicon interposer and provides control and operation of the comb laser modules.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: October 1, 2019
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Mir Ashkan Seyedi, Marco Fiorentino, Geza Kurczveil, Raymond G. Beausoleil
  • Patent number: 10422957
    Abstract: Methods and systems for a low-loss optical Y-Junction power splitter are disclosed and may include a semiconductor die having an optical Y-junction. The optical Y-junction may comprise an input waveguide, two or more output waveguides, a taper region and a step feature. The input waveguide and the taper region may include a smooth transition between the input waveguide and the taper region, and the step feature may be between the taper region and the output waveguides. The semiconductor die may receive an optical signal in the input waveguide, and communicate substantially equal power optical signals to the output waveguides. The semiconductor die may comprise a photonically-enabled silicon CMOS integrated circuit. An optical signal may be received in each of the output waveguides and a summed output signal may be communicated to the input waveguide. The step feature may extend in a direction perpendicular to an axis of the output waveguides.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: September 24, 2019
    Assignee: Luxtera, Inc.
    Inventors: Attila Mekis, Lieven Verslegers
  • Patent number: 10416529
    Abstract: 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: Grant
    Filed: May 11, 2016
    Date of Patent: September 17, 2019
    Assignee: TERADIODE, INC.
    Inventors: Parviz Tayebati, Francisco Villarreal-Saucedo, Bien Chann, Dat Nguyen, Michael Deutsch
  • Patent number: 10416390
    Abstract: An optical fiber cable unit has an optical fiber cable obtained by binding a plurality of optical fibers and transmits a laser beam using transmission paths having the optical fibers, respectively. The optical fiber cable unit includes: an input-side connection unit that inputs the laser beam to the optical fibers; a one-end-side connection unit fixed to one end of the optical fiber cable and connected to the input-side connection unit; an other-end-side connection unit fixed to the other end of the optical fiber cable; and an output-side connection unit to which the other-end-side connection unit is connected and in which the laser beam from the optical fibers is output. The input-side connection unit has a switching mechanism that switches the transmission paths for transmitting the laser beam.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: September 17, 2019
    Assignee: FANUC CORPORATION
    Inventor: Takanori Satou
  • Patent number: 10416481
    Abstract: The performances of a semiconductor device are improved. The semiconductor device includes an insulation layer, an optical waveguide part formed over the insulation layer, and including a p type semiconductor region and an n type semiconductor region formed therein, and an interlayer insulation film formed over the insulation layer in such a manner as to cover the optical waveguide part. At the first portion of the optical waveguide part, in a cross sectional view perpendicular to the direction of extension of the optical waveguide part, the n type semiconductor region is arranged at the central part of the optical waveguide part, and the p type semiconductor region is arranged in such a manner as to surround the entire circumference of the n type semiconductor region.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: September 17, 2019
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Tohru Kawai, Shinichi Watanuki, Yasutaka Nakashiba
  • Patent number: 10404035
    Abstract: A laser source. In some embodiments, a multiple-output laser source includes a plurality of lasers, and a coupler having a plurality of inputs and a plurality of outputs. Each of the inputs of the coupler is connected to an output of a respective laser, and each of the outputs of the coupler is connected to an output of the multiple-output laser source. In some embodiments the laser source is connected to other equipment with a single composite connector for making an optical connection and a plurality of electrical connections.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: September 3, 2019
    Assignee: Rockley Photonics Limited
    Inventors: Thomas Pierre Schrans, Nicholas Kucharewski, Pradeep Srinivasan
  • Patent number: 10393965
    Abstract: A photonic interconnection elementary switch is integrated in an optoelectronic chip/The switch includes first and second linear optical waveguides which intersect to form a first intersection. Two first photonic redirect ring resonators are respectively coupled to the first and second optical waveguides. Two second photonic redirect ring resonators are respectively coupled to the first and second optical waveguides. A third linear optical waveguide is coupled to one of the first ring resonators and one of the second ring resonators. A fourth linear optical waveguide is coupled to another of the first resonators and to another of the second ring resonators. A base switch, complex switch, and photonic interconnection network integrated in an optoelectronic chip, include at least two of the photonic interconnection elementary switches.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: August 27, 2019
    Assignee: STMicroelectronics (Crolles 2) SAS
    Inventors: Nicolas Michit, Patrick Le Maitre
  • Patent number: 10386585
    Abstract: A fitting for signal connector coupling has a bayonet attachment mechanism including a groove in a fitting wall including guiding groove and retaining groove portions, the retaining groove portion having a recess forming a positive lock to interact with a protruding member of a locking cap or collar, which may be turned onto the fitting until the protruding member resiliently snaps or springs into the recessed portion resisting loosening and providing haptic feedback indicating accomplishing secure attaching. A method of attaching a fitting to another device, includes placing and turning the another device on a cylindrical wall of the fitting while interaction between a groove in the fitting wall and a protuberance on the another device guides the another device rotationally about the fitting wall, and continuing turning moves the protuberance into a positive lock location in a retaining portion of the groove and also provides haptic feedback indicating attachment.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: August 20, 2019
    Assignee: Multilink Inc.
    Inventor: Steve E. Kaplan
  • Patent number: 10386583
    Abstract: When a second housing 80 and a first housing 30 are approached to each other along an axial direction, a body portion 62 of a second fixing member 60 begins to enter in an opening 81 of the second housing 80. Since a vertical wall surface 81a and a cylindrical surface 81b are formed on the opening 81 to substantially match the outer shape of the rear end of the body portion 62, when the second housing 80 is inserted to the first housing 30 while keeping the relative angle until the second housing 80 abuts on a first fixing member 40 which closes the opening and rotating the second housing 80 with respect to the first housing 30 by 90°, a protrusion 64 faces and enters a recessed engagement portion 83 formed on the vertical wall surface 81a. Thus, the protrusion 64 and the recessed engagement portion 83 are fitted and fixed.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: August 20, 2019
    Assignee: SEIKOH GIKEN Co., Ltd.
    Inventors: Masayuki Jibiki, Takanori Itagaki
  • Patent number: 10379308
    Abstract: An apparatus and method for accessing and/or repairing a select subset of fibers in an ADSS fiber optic cable. The apparatus includes a bousing extending from a first end to a second end. A first fiber optic spiice tray is positioned within the housing closer to the first end than to the second end. A second fiber optic spiice tray is positioned within the housing and spaced apart from the first spiice tray. A tension member extends through the housing and includes a first mechanical connector near the first end and a second mechanical connector near the second end. The connectors provide art attachment location for deadends at either end for transferring tension from the undamaged portion of the ADSS fiber optic cable.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: August 13, 2019
    Inventor: Brian D. Coate
  • Patent number: 10371876
    Abstract: In some embodiments, compositions and methods comprising reflective flowable materials, e.g., reflective liquids including reflective inks and/or liquid metals, are described. In some embodiments, a surface is contacted with a reflective flowable material, thereby forming a reflective layer on the surface. In some embodiments, the surface is a surface of a waveguide, for example a waveguide for a display device, and the flowable material coats surfaces of protrusions on the surface to form reflective diffractive optical elements. Some embodiments include a display device comprising a reflective layer of reflective flowable material.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: August 6, 2019
    Assignee: Magic Leap, Inc.
    Inventors: Marlon Edward Menezes, Jeffrey Dean Schmulen, Neal Paul Ricks, Victor Kai Liu, Zongxing Wang, David Carl Jurbergs
  • Patent number: 10359565
    Abstract: An optoelectronic circuit having a substantially planar double-sided substrate, each side of which has a respective plurality of electrically conducting tracks and a respective plurality of planar optical waveguides. The substrate also has at least one via crossing the substrate in a manner that can be used to establish an optical path across the substrate, e.g., between optical waveguides located on different sides thereof. In an example embodiment, the electrically conducting tracks and planar optical waveguides are configured to operatively connect various optoelectronic devices and auxiliary electrical circuits attached to the two sides of the substrate using hybrid-integration technologies. In some embodiments, two or more of such double-sided substrates can be stacked and optically and electrically interconnected to create an integrated three-dimensional assembly.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: July 23, 2019
    Assignee: NOKIA OF AMERICA CORPORATION
    Inventors: Yee L. Low, Nagesh Basavanhally
  • Patent number: 10359589
    Abstract: A consumable cored wire for measuring a temperature of a molten steel bath includes an optical fiber and a cover laterally surrounding the optical fiber in a plurality of layers. One layer is a metal pipe, also called metal jacket or metal tube. An intermediate layer, also called filler, is arranged beneath the metal tube. The intermediate layer is a rope.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: July 23, 2019
    Assignee: Heraeus Electro-Nite International N.V.
    Inventors: Martin Kendall, Robert Charles Whitaker, Marc Straetemans, Jack Childs, Dominique Feytongs
  • Patent number: 10359585
    Abstract: In order to further develop a device (100a, 100b, 100c, 100d, 100e, 100f) for coupling optical signals into at least one waveguide (10), wherein the device (100a, 100b, 100c, 100d, 100e, 100f) comprises at least one electro-optical converter (28) which sends out the optical signals in the direction of the axis or of the core (12) of the waveguide (10), in such a way that active alignment of the waveguide (10) is not necessary, it is proposed that the electro-optical converter (28) is incorporated, in particular embedded, in at least one send-site optical subassembly (40), and that the send-site optical subassembly (40) comprises at least one guiding channel (46) for aligning the waveguide (10) with respect to the electro-optical converter (28), in particular relative to the output port or to the active surface (30) of the electro-optical converter (28). The corresponding is true for a device (140a, 140b, 140c, 140d, 140e, 140f) for decoupling optical signals from at least one waveguide (10).
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: July 23, 2019
    Assignee: SILICON LINE GMBH
    Inventors: Holger Hoeltke, Martin Groepl
  • Patent number: 10359635
    Abstract: An optical device is disclosed for expanding input light in two dimensions in an augmented reality display. The device comprises a waveguide (12) and three linear diffraction grat-ings H0, H1, H2. An incident beam from a projector illuminates an input grating H0 with polychromatic light, and the light is coupled into the waveguide (12). The other two gratings H1, H2 are overlaid on top of one another. Light can be diffracted by one grating H1 into a first diffracted order and towards the other grating H2 which can couple the light out of the waveguide (12) towards a viewer. In another arrangement the crossed gratings H1, H2 may be replaced by a photonic crystal (19) having a regular array of pillars (20) which create a number effective diffraction gratings.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: July 23, 2019
    Assignee: Wave Optics Ltd.
    Inventors: David Grey, Sumanta Talukdar