Patents Examined by Hoang Tran
  • Patent number: 10228528
    Abstract: The bond between abutting layers is controlled by introducing particulate matter at the interface of the layers.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: March 12, 2019
    Assignee: Corning Optical Communications LLC
    Inventors: Bradley J. Blazer, Anne G. Bringuier, Michael J. Gimblet, Cory F. Guenter, Douglas S. Hedrick, Jason C. Lail, Reginald Roberts
  • Patent number: 10222571
    Abstract: A telecommunications chassis comprises a cable sealing portion defining at least one cable opening configured to sealably receive a cable and a module mounting portion extending from the cable sealing portion, which further comprises a housing defining an open front closable by a door to define an interior, a rear wall, a right wall, and a left wall. A plurality of module mounting locations is provided in a vertically stacked arrangement, each configured to receive a telecommunications module through the open front. An exterior of the housing includes a first column of radius limiters defining curved profiles for guiding cables from the front toward the rear with bend control. A second column of radius limiters in the form of spools is spaced apart and generally parallel to the first column of radius limiters and a third column of radius limiters, at least some of which are in the form of spools, is also spaced apart and generally parallel to the first and second columns of radius limiters.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: March 5, 2019
    Assignee: CommScope Technologies LLC
    Inventors: James J. Solheid, Kristofer Bolster, Soutsada Vongseng, Thomas G. LeBlanc
  • Patent number: 10215918
    Abstract: An optical system is disclosed. The optical system comprising: a substrate; and a subwavelength photonic crystal waveguide atop the substrate, wherein the subwavelength photonic crystal waveguide comprises a periodic one or two-dimensional array of two or more interleaved dielectric pillars; wherein the periodicity of the one or two-dimensional array is constant, a combination of two or more periods, or random; wherein the one or two-dimensional array is substantially linear or curved; wherein each of the pillars of the one or two-dimensional array is at least one of a triangular prism, a trapezoidal prism, an elliptic cylinder, a cylinder, a tube, a frustum, a pyramid, a trapezoidal prism, and an asymmetric frustum; and wherein each of the pillars of the one or two-dimensional array comprises a solid, liquid, and/or gas. Other embodiments are described and claimed.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: February 26, 2019
    Assignee: Omega Optics, Inc.
    Inventors: Xiaochuan Xu, Ray T. Chen
  • Patent number: 10215921
    Abstract: Disclosed are a method and structure providing a silicon-on-insulator substrate on which photonic devices are formed and in which a core material of a waveguide is optically decoupled from a support substrate by a shallow trench isolation region.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: February 26, 2019
    Assignee: Micron Technology, Inc.
    Inventor: Roy E. Meade
  • Patent number: 10197737
    Abstract: Embodiments of the present disclosure are directed toward an optical apparatus that includes a semiconductor layer to propagate light from at least one light source. The optical apparatus may further include a curved echelle grating with a plurality of grating teeth, the echelle grating at an outer side of the semiconductor layer. The curved echelle grating may include a plurality of grating teeth, and a grating tooth of the plurality of grating teeth may have a grating facet and a shadow facet. A shadow facet may have an angle of grating greater than 0 degrees with respect to a normal of a curve of the curved echelle grating. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: February 5, 2019
    Assignee: Intel Corporation
    Inventor: Wenhua Lin
  • Patent number: 10173286
    Abstract: Certain aspects of the present disclosure provide techniques and corresponding apparatus for making armored cables with one or more optical fibers contained therein. The techniques may be utilized to control an amount of excess fiber length (EFL) in the armored cables. The techniques may also allow introduction of one or more optical fibers directly into a welding process without using an inner tube in the final armored cable. The techniques may also be utilized to reduce friction and static charge on the optical fiber(s) as the fiber(s) are pushed through one or more guide tubes that protect the fiber(s) during the welding process.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: January 8, 2019
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Edward M. Dowd, Jason Scott Kiddy, Mary Margaret Sequino
  • Patent number: 10175436
    Abstract: An optical fiber ribbon includes a plurality of optical fibers and a ribbon matrix having an inner matrix surrounding and encapsulating the optical fibers, wherein the inner matrix is the cured product of an inner matrix composition substantially free of oligomer components, and an outer matrix surrounding the inner matrix, wherein the outer matrix is the cured product of an outer matrix composition substantially free of oligomer components.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: January 8, 2019
    Assignee: Corning Optical Communications LLC
    Inventors: Michelle Dawn Fabian, Kevin Robert McCarthy
  • Patent number: 10146024
    Abstract: Novel tools and techniques are provided for implementing installation of optical fiber, non-fiber lines, and/or power lines in a ground surface. In various embodiments, a foldable base might be placed in a channel in a ground surface. The foldable base might include a base portion, two side wall portions, at least two points of articulation, and two plug contacts. Each point of articulation allows each side wall portion to fold relative with the base portion, forming a cavity. One or more lines may be placed within the cavity. A plug, placed above the lines in the cavity, may engage with the two plug contacts to secure the plug to the foldable base. Capping material, placed in microchannel on a top surface of the plug, may flow beyond the microchannel and over any openings between the plug and the foldable base and between the foldable base and edges of the channel.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: December 4, 2018
    Assignee: CenturyLink Intellectual Property LLC
    Inventors: Michael L. Elford, Michael P. Winterrowd, Patrick J. Sims
  • Patent number: 10139568
    Abstract: An optical fiber splicing tool of the invention include: an optical fiber splicing unit that includes: an optical fiber grasper that grasps a first optical fiber at a mechanical splice; and a guide target that is slidable along a guide provided at a connecting jig that fixes a second optical fiber to be butt-jointed to the first optical fiber; and a connecting jig that includes: a guide that guides the optical fiber splicing unit; and an optical fiber fixer that fixes the second optical fiber. The optical fiber splicing unit provides a first flexure width between one end side of the mechanical splice and the optical fiber grasper, and a second flexure width shorter than the first flexure width is ensured between the other end side of the mechanical splice and the optical fiber fixer when butt-jointing is carried out.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: November 27, 2018
    Assignees: FUJIKURA LTD., NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takashi Yamaguchi, Takaharu Matsuda, Kazuhiro Takizawa, Kazutoshi Takamizawa, Yuuji Aoyagi, Atsushi Daido, Masahiro Ida
  • Patent number: 10139563
    Abstract: A method is for making a photonic chip including EO devices having multiple thicknesses. The method may include forming a first semiconductor layer over a semiconductor film, forming a second semiconductor layer over the first semiconductor layer, and forming a mask layer over the second semiconductor layer. The method may include performing a first selective etching of the mask layer to provide initial alignment trenches, performing a second etching, aligned with some of the initial alignment trenches and using the first semiconductor layer as an etch stop, to provide multi-level trenches, and filling the multi-level trenches to make the EO devices having multiple thicknesses.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: November 27, 2018
    Assignees: STMICROELECTRONICS SA, STMICROELECTRONICS (CROLLES 2) SAS
    Inventors: Charles Baudot, Alain Chantre, Sébastien Cremer
  • Patent number: 10120146
    Abstract: There is provided an opto-electric hybrid module in which an optical element of an optical element unit and a core of an optical waveguide of an opto-electric hybrid unit are aligned with each other simply and precisely. This opto-electric hybrid module includes: a connector including an optical element; and an opto-electric hybrid unit including an electric circuit board and an optical waveguide which are stacked together. The connector includes aligning protrusions positioned and formed in a predetermined position with respect to the optical element. The opto-electric hybrid unit 2 includes recesses for fitting engagement with the aligning protrusion, the recesses being positioned and formed in a predetermined position with respect to an end surface of a core of the optical waveguide.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: November 6, 2018
    Assignee: NITTO DENKO CORPORATION
    Inventors: Yuichi Tsujita, Naoki Shibata, Naoyuki Tanaka, Shotaro Masuda
  • Patent number: 10114173
    Abstract: An aspect of the disclosure provides a microring resonator (MRR). Such an MRR includes a ring optical waveguide and an optical waveguide, with the optical waveguide configured such that a first portion of the optical waveguide overlaps a second portion of the ring waveguide. In some embodiments, the optical waveguide has a first refractive index and the ring optical waveguide has a second refractive index such that the first refractive index is less than the second refractive index. In some embodiments, the optical waveguide is a polymer optical waveguide and the ring optical waveguide is a silicon optical waveguide. In some embodiments, the optical waveguide is larger in height than the ring waveguide and the first portion of the optical waveguide is configured to provide space for the second portion of the ring waveguide.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: October 30, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Chunshu Zhang, Dominic John Goodwill
  • Patent number: 10101530
    Abstract: An intersecting splitter configured so that the branching ratio of each optical splitter differs in accordance with the difference in the number of intersections in each branched waveguide. The branching ratios (totaling 100%) of the optical splitters are adjusted so that the branching ratios on the high side as to the number of intersections is high in comparison with the branching ratios on the low side as to the number of intersections, and it is thereby possible to level the total loss.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: October 16, 2018
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventor: Junichi Hasegawa
  • Patent number: 10082623
    Abstract: Provided are a practical rib type optical waveguide in which polarization dependence and wavelength dependence and the like are small and an optical multiplexer/demultiplexer using the same. An optical waveguide type optical multiplexer/demultiplexer of the present invention includes a substrate, M input optical waveguides and N output optical waveguides including a single mode rib type optical waveguide, multi-mode optical interference regions including a rib type optical waveguide, and reversible tapered regions that smoothly connect the input/output optical waveguides to the multi-mode optical interference regions and include M×N rib type optical waveguides, and both side surfaces of the multi-mode optical interference region are respectively formed in a stepped shape.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: September 25, 2018
    Assignee: NEC CORPORATION
    Inventors: Tomoaki Kato, Shigeru Nakamura
  • Patent number: 10054735
    Abstract: We provide methods and apparatus for preparing crystalline-clad and crystalline core optical fibers with minimal or no breakage by minimizing the influence of thermal stress during a liquid phase epitaxy (LPE) process as well as the fiber with precisely controlled number of modes propagated in the crystalline cladding and crystalline core fiber via precisely controlling the diameter of crystalline fiber core with under-saturated LPE flux. The resulting crystalline cladding and crystalline core optical fibers are also reported.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: August 21, 2018
    Assignees: The Penn State Research Foundation, General Opto Solutions, LLC
    Inventors: Shizhuo Yin, Fang Luo
  • Patent number: 10054738
    Abstract: A technique that does not increase the circuit size, does not make the circuit design and manufacturing difficult, and can reduce insertion loss when light enters from a slab waveguide toward an arrayed waveguide or when the light enters from the arrayed waveguide toward the slab waveguide. An optical waveguide provided with a slab waveguide in which a grating is formed therein at a distance from an end, and an arrayed waveguide whose end is connected to an end of the slab waveguide at a position where a constructive interference portion of a self-image of the grating is formed.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: August 21, 2018
    Assignee: NTT ELECTRONICS CORPORATION
    Inventors: Keiichi Morita, Kazumi Shimizu, Kouji Kawashima, Tomoharu Niitsu
  • Patent number: 10031354
    Abstract: An active-control optical resonator includes an oxide layer; a ring resonator arranged in a loop and positioned on the oxide layer; a tangential optical waveguide optically coupled to the ring resonator; a translatable body configured to selectively move into an evanescent field region of the ring resonator; a first electrode positioned on the translatable body, the first electrode comprising indium tin oxide; and a second electrode positioned between the oxide layer and the ring resonator.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: July 24, 2018
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Sonny Vo, Zhihong Huang, Chin-Hui Chen, Jason Scott Pelc, Marco Fiorentino
  • Patent number: 10025123
    Abstract: The various technologies presented herein relate to various hybrid phononic-photonic waveguide structures that can exhibit nonlinear behavior associated with traveling-wave forward stimulated Brillouin scattering (forward-SBS). The various structures can simultaneously guide photons and phonons in a suspended membrane. By utilizing a suspended membrane, a substrate pathway can be eliminated for loss of phonons that suppresses SBS in conventional silicon-on-insulator (SOI) waveguides. Consequently, forward-SBS nonlinear susceptibilities are achievable at about 3000 times greater than achievable with a conventional waveguide system. Owing to the strong phonon-photon coupling achievable with the various embodiments, potential application for the various embodiments presented herein cover a range of radiofrequency (RF) and photonic signal processing applications. Further, the various embodiments presented herein are applicable to applications operating over a wide bandwidth, e.g. 100 MHz to 50 GHz or more.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: July 17, 2018
    Assignees: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Peter Thomas Rakich, Heedeuk Shin, Ryan Camacho, Jonathan Albert Cox, Robert L. Jarecki, Jr., Wenjun Qiu, Zheng Wang
  • Patent number: 9964834
    Abstract: In a high power optical system, a thermal waveguide including an optical material having an index of refraction sensitive to changes in temperature, the rectangular optical material having a first dimension and a second dimension in a horizontal plane and a third dimension in a vertical plane, the third dimension being approximately ten times smaller than the first and second dimension, at least one heat sink thermally coupled to the optical material to establish a one-dimensional thermal gradient across the third dimension of the optical material, the thermal gradient having a parabolic profile across the rectangular optical material, and wherein the optical material is configured to act as a waveguide when a laser beam having a power of greater than one watt is incident upon the optical material.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: May 8, 2018
    Assignee: Physical Sciences, Inc.
    Inventor: Peter F. Moulton
  • Patent number: 9964717
    Abstract: Device and method are provided to align and bond a lens array to a PD array with high precision, which can implement aligning and bonding of the lens array automatically. A telescopic rod of the stepping actuator is adjusted until photosensitive areas of the PD array form a clear image on the image acquisition CCD through the lens array, an adjusted distance h1 of the telescopic rod is recorded, and a position coordinate (xn, yn) of center of each circular photosensitive area in the image may be obtained, and a slope k1 of a line connecting the centers of the photosensitive areas is calculated. The telescopic rod is adjusted again, and a slope k2 of a line connecting the centers of the apertures of the lens array is calculated. Based on calculated values ?xn, ?yn, arctan(k1)?arctan(k2), the high-resolution adjustment stage is adjusted to adjust position of the lens array.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: May 8, 2018
    Assignee: Accelink Technologies Co., Ltd.
    Inventors: Chuan Shi, Huali Xi, Xiong Jiang, Xuerui Liang, Hualin Yin, Weidong Ma