Patents Examined by Michelle R. Connelly
  • Patent number: 11327235
    Abstract: In various embodiments, a beam-parameter adjustment system and focusing system alters a spatial power distribution of a plurality of radiation beams before the beams are coupled into an optical fiber.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: May 10, 2022
    Assignee: TERADIODE, INC.
    Inventors: Bien Chann, Parviz Tayebati, Robin Huang, Bryan Lochman, Wang-Long Zhou, Francisco J. Villarreal-Saucedo, James Zambuto
  • Patent number: 11327213
    Abstract: A light diffusing optical fiber includes a core, a cladding surrounding the core, an outer surface, and a plurality of scattering structures positioned within the core, the cladding, or both the core and the cladding. The plurality of scattering structures are configured to scatter guided light towards the outer surface, such that light including a wavelength of from about 450 nm to about 650 nm diffusing through the outer surface along a diffusion length of the light diffusing optical fiber includes a spectral attenuation percent relative range of about 15% or less.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: May 10, 2022
    Assignee: Corning Incorporated
    Inventor: Stephan Lvovich Logunov
  • Patent number: 11320598
    Abstract: The present disclosure is generally directed to an optical demultiplexer for use in an optical transceiver module having a truncated profile/shape to increase tolerance and accommodate adjacent optical components. In more detail, the optical demultiplexer comprises a body with at least one truncated corner at the input end. The at least one truncated corner allows the optical demultiplexer to be disposed/mounted, e.g., directly, on a densely populated transceiver substrate, e.g., a printed circuit board (PBC), and provide additional tolerance/space for mounting of circuitry and/or components within the region that would normally be occupied by corner(s) of the optical demultiplexer body. The at least one truncated corner may be introduced in a post-production step, e.g., via cut & polishing, or introduced during formation of the optical demultiplexer using, for instance, photolithography techniques.
    Type: Grant
    Filed: November 24, 2019
    Date of Patent: May 3, 2022
    Assignee: Applied Optoelectronics, Inc.
    Inventors: Kai-Sheng Lin, Hao-Chiang Cheng, Ziliang Cai
  • Patent number: 11307479
    Abstract: A semiconductor device includes a first insulating layer, an optical modulator, and a multilayer wiring layer. The optical modulator is formed on the first insulating layer. The multilayer wiring layer is formed on the first insulating layer and including a wiring and a resistive element which are spaced apart from each other. The resistive element is formed without overlapping with the optical modulator in plan view. A material of the resistive element is at least one selected from the group consisting of titanium, titanium nitride, tantalum, tantalum nitride, tungsten, and silicon chromium.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: April 19, 2022
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Teruhiro Kuwajima, Yasutaka Nakashiba
  • Patent number: 11300733
    Abstract: An optical waveguide member connector kit includes an optical waveguide member including an optical waveguide and a connector accommodating the optical waveguide member. The connector includes a main body having a bottom wall, and a first wall and a second wall that extend from the bottom wall toward one side in a thickness direction of the bottom wall and face each other at spaced intervals therebetween, and a lid disposed between the first wall and the second wall and sandwiching the optical waveguide member with the bottom wall when the optical waveguide member is accommodated in the connector. A ratio (L1/L2) of a length L1 in a facing direction of the lid to a facing length L2 between the first wall and the second wall is 0.80 or more and 0.99 or less.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: April 12, 2022
    Assignee: NITTO DENKO CORPORATION
    Inventors: Naoto Konegawa, Yuichi Tsujita, Mineyoshi Hasegawa
  • Patent number: 11300739
    Abstract: An optical transmission module includes: a main substrate having a front surface and a back surface; an optical connector having a connector substrate; a first transparent substrate disposed between the connector substrate and the main substrate; a heat source element disposed between the connector substrate and the back surface of the main substrate, and electrically connected to the main substrate; one or a plurality of wirings electrically connecting the heat source element to the main substrate, and each configured to transfer heat generated from the heat source element and the first transparent substrate, to the main substrate; a first special region preventing the heat generated from the heat source element and the first transparent substrate, from being transferred to the connector substrate; and a second special region providing a function of transferring the heat generated from the heat source element and the first transparent substrate.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: April 12, 2022
    Assignee: Sony Group Corporation
    Inventor: Hiizu Ootorii
  • Patent number: 11287571
    Abstract: To provide a multiplexer that makes it possible to achieve a reduction in size and that minimizes the influence of the expansion of laser light on a multiplexing unit. A multiplexer is provided with a plurality of waveguides, multiplexing units that are provided at an intermediate location within the waveguides, and laser light sources, wherein: the first multiplexing unit is arranged at a position that is closest to the laser light sources; and the laser light sources that have an optical axis at a position that is separated from the transmission axis of the visible light that is introduced into the first multiplexing unit are arranged so that the optical axis is inclined with respect to the transmission axis and the outer periphery of laser light that expands at a predetermined expansion angle passes in front of the first multiplexing unit.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: March 29, 2022
    Assignee: NATIONAL UNIVERSITY CORPORATION UNIVERSITY OF FUKUI
    Inventors: Toshio Katsuyama, Akira Nakao
  • Patent number: 11280960
    Abstract: One example optical splitter chip includes a substrate, where the substrate is configured with an input port, configured to receive first signal light, an uneven optical splitting unit, configured to split the first signal light into at least second signal light and third signal light, where optical power of the second signal light is different from optical power of the third signal light, a first output port, configured to output the second signal light, an even optical splitting unit group, including at least one even optical splitting unit, configured to split the third signal light into at least two channels of equal signal light, where optical power of the at least two channels of equal signal light is the same, and at least two second output ports, which are in a one-to-one correspondence with the at least two channels of equal signal light.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: March 22, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Biao Qi, Wei Xiong, Sanxing Li
  • Patent number: 11278352
    Abstract: A distal end of an optical fiber may be protected by a variety of alternative protective caps, tips, and/or sleeves. In one example, a generally cylindrical soft tip is arranged to fit over the end of the fiber, and to compress in an axial direction when pressed against a stone to allow a recessed tip of the fiber to contact the stone or to be maintain a minimum spacing between the fiber tip and the stone and thereby limit erosion of the fiber tip.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: March 22, 2022
    Assignee: OPTICAL INTEGRITY, INC.
    Inventor: Joe D. Brown
  • Patent number: 11280956
    Abstract: A waveguide includes an input area, a multi-layered substrate, and an output area. The multi-layered substrate includes a plurality of layers of at least a substrate and at least one partially reflective layers. The input area in-couples light in a first band into the waveguide. The one or more partially reflective layers are partially reflective to light in the first band. Each of the one or more partially reflective layers are located between respective layers of the plurality of layers of the substrate. The output area out-couples light from the waveguide. The pupil replication density of the out-coupled light is based in part on a number of the one or more partially reflective layers and respective locations of the one or more partially reflective layers in the waveguide.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: March 22, 2022
    Assignee: Facebook Technologies, LLC
    Inventors: Maxwell Parsons, Giuseppe Calafiore, Wanli Chi
  • Patent number: 11275210
    Abstract: An optical coupler includes a first waveguide including a first multi-mode waveguide section having a cross-section characterized by a first height and a first width that is greater than the first height and a second waveguide including a second multi-mode waveguide section having a cross-section characterized by a second height and a second width that is greater than the second height. The first multi-mode waveguide section is positioned adjacent to the second multi-mode waveguide section at least partially above or below the second multi-mode waveguide so that light entering the first multi-mode waveguide section is coupled from the first multi-mode waveguide section to the second multi-mode waveguide section. Methods for coupling light between waveguides with the optical coupler and optical devices that include the optical coupler are also described.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: March 15, 2022
    Assignee: PSIQUANTUM CORP.
    Inventor: Mark Thompson
  • Patent number: 11269236
    Abstract: Aspects of the present disclosure describe optical structures and devices, and more particularly to improved, tunable optical structures including optical gratings that are dynamically affected and/or tuned by acousto-optic or electro-optic mechanisms.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: March 8, 2022
    Assignee: Analog Photonics LLC
    Inventors: Erman Timurdogan, Ehsan Shah Hosseini, Michael Robert Watts, Michael J. Whitson
  • Patent number: 11262585
    Abstract: An optical combiner lens includes a lens and a lightguide with a gap defined between the lens and the lightguide. Spacers are disposed in the gap to maintain the gap at a set height. A method of making the optical combiner lens and a wearable heads-up display including the optical combiner lens are disclosed.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: March 1, 2022
    Assignee: Google LLC
    Inventors: Shreyas Potnis, Daniel Adema, Timothy Paul Bodiya
  • Patent number: 11262507
    Abstract: A fiber optic adapter is disclosed. The fiber optic adapter includes a main body configured to receive a first fiber optic connector through a first end and a second fiber optic connector through a second end for mating with the first fiber optic connector. The adapter includes a ferrule alignment structure located within an axial cavity of the main body, the ferrule alignment structure including a sleeve mount and a ferrule sleeve, the sleeve mount including an axial bore and at least one latching hook extending from a center portion of the sleeve mount toward the first end of the main body and at least one latching hook extending from the center portion toward the second end of the main body, the latching hooks configured to flex for releasably latching the first and second fiber optic connectors to the fiber optic adapter.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: March 1, 2022
    Assignee: CommScope Technologies LLC
    Inventor: Keith Quinten Nelson
  • Patent number: 11262500
    Abstract: A semiconductor device includes a semiconductor substrate having a first surface, a second surface opposite to the first surface, and having a first recess portion formed on the first surface, a first cladding layer located in the first recess portion, and a first optical waveguide formed on the first cladding layer. The first optical waveguide overlaps with the first cladding layer in plan view.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: March 1, 2022
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Tetsuya Iida, Yasutaka Nakashiba, Seigo Namioka, Tomoo Nakayama
  • Patent number: 11249247
    Abstract: The present invention, as disclosed and described herein, in one aspect thereof comprises a preform for making a vortex optical fiber includes a glass cylinder formed substantially of silicone dioxide that defines a core portion along a longitudinal axis of the glass cylinder and a cladding portion surrounding the core portion. The glass cylinder further defines a plurality of holes running parallel to the longitudinal axis from a first end of the glass cylinder to a second end of the glass cylinder.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: February 15, 2022
    Assignee: NXGEN PARTNERS IP, LLC
    Inventor: Solyman Ashrafi
  • Patent number: 11237349
    Abstract: Systems and methods of dispensing telecommunications cable from a network component are provided. A system includes a housing, an axle, and a spool. The housing defines an interior region and includes a cable storage portion and a mounting surface defining a receptacle. The axle is configured to removably attach to the receptacle. The spool is configured to be disposed on the axle, and has a first flange proximal to the mounting surface and a removable second flange distal to the mounting surface when the spool is disposed on the axle. The spool has a drum portion configured to support a coiled fiber optic cable and dispense the fiber optic cable as the spool rotates on the axle. Undispensed cable can be removed from the spool with the second flange removed. The cable storage portion of the housing is configured to receive the undispensed coil.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: February 1, 2022
    Assignee: PPC BROADBAND, INC.
    Inventors: Nicholas B. Larsson, George I. Wakileh
  • Patent number: 11237324
    Abstract: The present disclosure provides a few mode optical fiber (100). The few mode optical fiber (100) includes a core (102). The core (102) defined by a region around a central longitudinal axis (112) of the few mode optical fiber (100). In addition, the core (102) has a super gaussian refractive index profile with curve parameter gamma and rescale factor (a). In addition, the core (102) has a first annular region (104) extended from central longitudinal axis (112) of the few mode optical fiber (100) to radius r1. Further, the core (102) has a second annular region (106) extended from radius r1 to radius r2. Furthermore, the core (102) has a third annular region (108) extended from radius r2 to radius r3. In addition, the few mode optical fiber (100) has a cladding (110) extended from radius r3 to radius r4.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: February 1, 2022
    Assignee: STERLITE TECHNOLOGIES LIMITED
    Inventors: Srinivas Reddy Munige, Anand Pandey
  • Patent number: 11231557
    Abstract: A telecommunications wall fixture includes a body configured for mounting to a wall, the body defining a mounting surface generally parallel to the wall when mounted. A cable storage spool is rotatably mounted to the body for storage and deployment of cable. A device is used for re-orienting the rotation axis of the spool from being generally perpendicular to the mounting surface to being generally non-perpendicular to the mounting surface, wherein the spool is configured such that the spool can be stored within the body when the spool is oriented to have the rotation axis generally perpendicular to the mounting surface.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: January 25, 2022
    Assignee: CommScope Technologies LLC
    Inventors: Thomas Parsons, Matthew J. Holmberg, James J. Solheid, Douglas C. Ellens, Thomas G. Leblanc
  • Patent number: 11226537
    Abstract: An optical device has a first optical layer with a first dispersion response as a first function of wavelength. A second optical layer has a second dispersion response as a function of wavelength that is different than the first function. A separating layer is located between the first and second optical layers and has a lower refractive index than the first layer and the second layer. A thickness of the separating layer is selected such that the first and second dispersion responses combine to create an anomalous dispersion about a target wavelength. The anomalous dispersion results in the optical device emitting a wideband coherent optical output about the target wavelength in response to an optical input at the target wavelength.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: January 18, 2022
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Ali Eshaghian Dorche, Thomas Wunderer, Noble M. Johnson