Patents Examined by Hoang Tran
  • 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
    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
    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
    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
    Inventors: Tomoaki Kato, Shigeru Nakamura
  • 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
    Inventors: Keiichi Morita, Kazumi Shimizu, Kouji Kawashima, Tomoharu Niitsu
  • 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: 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: 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
  • 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: 9952395
    Abstract: An optical cable and method for forming an optical cable is provided. The cable includes a cable jacket including an inner surface defining a channel and an outer surface and also includes a plurality of optical fibers located within the channel. The cable includes a seam within the cable jacket that couples together opposing longitudinal edges of a wrapped thermoplastic sheet which forms the cable jacket and maintains the cable jacket in the wrapped configuration around the plurality of optical fibers. The method includes forming an outer cable jacket by wrapping a sheet of thermoplastic material around a plurality of optical core elements. The method includes melting together portions of thermoplastic material of opposing longitudinal edges of the wrapped sheet such that a seam is formed holding the sheet of thermoplastic material in the wrapped configuration around the core elements.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: April 24, 2018
    Assignee: Corning Optical Communications LLC
    Inventor: Anthony Sebastian Bauco
  • Patent number: 9946038
    Abstract: A cable tracing type jumper cable include a first electrical connector including an insulative holder shell, a pin block and a connection block at two opposite ends of the insulative holder shell and a first circuit board with a light-emitting device mounted in the connection block, a lead wire set connected with one end thereof to the first electrical connector and including multiple optical fibers, and second electrical connectors connected to an opposite end of the lead wire set each including a lower insulative holder shell, a second circuit board with a light-emitting device mounted in the lower insulative holder shell and electrical plugs mounted in one end of the lower insulative holder shell opposite to the lead wire set. When a voltage is applied to the lead wire set, the light-emitting devices in the first and second electrical connectors are electrically conducted to emit light for tracing.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: April 17, 2018
    Inventor: Yen-Lin Lin
  • Patent number: 9904010
    Abstract: The present invention discloses a PIOS with a high extinction ratio based on slab PhCs which comprises an upper slab PhC and a lower slab PhC connected as a whole; the upper slab PhC is a first square-lattice slab PhC, the unit cell of the first square-lattice slab PhC includes a high-refractive-index rotating square pillar, a single first flat dielectric pillar and a background dielectric; the first flat dielectric pillar includes a high-refractive-index dielectric pipe and a low-refractive-index dielectric, or a high-refractive-index flat films, or a low-refractive-index dielectric; the lower slab PhC is a second square-lattice slab PhC with a complete bandgap, the unit cell of said second square-lattice slab PhC includes a high-refractive-index rotating square pillar, a single second flat dielectric pillar and a background dielectric is a low-refractive-index dielectric; and an normalized frequency of the optical switch is 0.41 to 0.4167.
    Type: Grant
    Filed: June 18, 2017
    Date of Patent: February 27, 2018
    Inventor: Zhengbiao Ouyang
  • Patent number: 9885839
    Abstract: The present disclosure relates to system and method for cleaning an end face of a bare optical fiber (100). The system and methods include inserting the end face of the bare optical fiber (100) through a layer of material (500) that includes electrospun fibers.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: February 6, 2018
    Assignee: CommScope Connectivity Belgium BVBA
    Inventors: Jan Watte, Stefano Beri, Danny Willy August Verheyden, Sangram Keshari Samal, Ana Margarida Doamaral Cardoso Dos Santos, Peter Martha Dubruel, Ana Nedelcheva Hristova
  • Patent number: 9885841
    Abstract: Fiber optic connectors and adapters may be automatically secured and released via a management system. Such automation may inhibit accidental and/or unauthorized insertion of fiber optic connectors into adapter ports. The automation also may inhibit accidental and/or unauthorized removal of the fiber optic connectors from the adapter ports.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: February 6, 2018
    Assignee: CommScope Technologies LLC
    Inventors: Paul John Pepe, Joseph C. Coffey
  • Patent number: 9880403
    Abstract: A non-reciprocal device incorporating metamaterials which exhibit non-reciprocity through angular momentum biasing. The metamaterial, such as a ring resonator, is angular-momentum biased. This is achieved by applying a suitable mechanical or spatio-temporal modulation to resonant inclusions of the metamaterial, thereby producing strong non-reciprocity. In this manner, non-reciprocity can be produced without requiring the use of large and bulky magnets to produce a static magnetic field. The metamaterials of the present invention can be realized by semiconducting and/or metallic materials which are widely used in integrated circuit technology, and therefore, contrary to magneto-optical materials, can be easily integrated into the non-reciprocal devices and large microwave or optical systems. The metamaterials of the present invention can be compact at various frequencies due to the enhanced wave-matter interaction in the constituent resonant inclusions.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: January 30, 2018
    Assignee: Board of Regents, The University of Texas System
    Inventors: Andrea Alu, Dimitrios Sounas, Nicholas Estep
  • Patent number: 9880355
    Abstract: The present relates to a spatially modulated cladding mode stripper and to an optical fiber comprising a spatially modulated cladding mode stripper. The spatially modulated cladding mode stripper comprises a series of alternating high cladding light extracting regions and low cladding light extracting regions located along a portion of a cladding to modulate extracting of cladding light therefrom.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: January 30, 2018
    Inventors: Marc-André Lapointe, Serge Doucet, Jean-Noel Maran
  • Patent number: 9877407
    Abstract: The disclosed apparatus may include at least one physical extension handle that connects to at least one ejector that facilitates securing a line card to a chassis of a telecommunications system and ejecting the line card from the chassis of the telecommunications system. The physical extension handle may, when connected to the ejector, extend the ejector such that a user is able to access the ejector by way of the physical extension handle to secure the line card to or eject the line card from the chassis of the telecommunications system using the physical extension handle. Additionally or alternatively, the physical extension handle may facilitate physically supporting one or more communication cables connected to the line card in a horizontal orientation such that the communication cables avoid hanging down vertically directly from the chassis. Various other apparatuses and systems are also disclosed.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: January 23, 2018
    Assignee: Juniper Networks, Inc.
    Inventors: Henry K. Sim, Ken R. Weber, Mahesh Nagarajan, Brian J. Ray, Adolpho Gonzalez, Alex Brown, Tark Abed
  • Patent number: 9829655
    Abstract: A communication connector including a connector housing configured to hold at least one of optical fibers or electrical contacts. The connector housing has an engagement face that is configured to interface with a mating connector. The communication connector also includes a movable member that is held by the connector housing and that includes a magnetic material. The movable member is permitted to move toward and engage the mating connector when the movable member is magnetically drawn toward the mating connector.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: November 28, 2017
    Assignee: TE Connectivity Corporation
    Inventors: David Donald Erdman, Alan E. Plotts
  • Patent number: 9816304
    Abstract: A double jointed hinge mechanism for pivotally coupling a door to a telecommunications chassis includes an first hinge arm configured to be non-rotatably attached to the chassis, a second hinge arm non-rotatably attached to the door, and a third hinge arm pivotally attached to the first and second hinge arms. The hinge mechanism is configured such that the door can be placed in a first open position and a second open position through rotation about first and second rotational axes. In the first open position, the door is in a generally horizontal position and below the first rotational axis. In the second open position, the door is in a generally vertical position and forward of a vertical plane defined by the first rotational axis.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: November 14, 2017
    Inventors: Dennis Ray Wells, Rodney C. Schoenfelder