Matrix Switch (i.e., M X N, Where M And N Are 3 Or More) Patents (Class 385/17)
  • Patent number: 11506884
    Abstract: An optical circuit switch device and method for using the device are provided. The device may include a fiber array including a set of optical fibers configured for transmitting optical signals. The device may include a collimator array coupled to the fiber array configured for aligning the optical signals received from the fiber array. The device may include a first mirror array for receiving the optical signals from the collimator array. The device may include a second mirror array for receiving the optical signals from the first mirror array. The device may include a lens located at the fiber array, the lens having a focal point at the second mirror array.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: November 22, 2022
    Assignee: Molex, LLC
    Inventors: Gongjian Hu, Kelvin Chau, Lifu Gong
  • Patent number: 11493719
    Abstract: An indexing terminal arrangement includes a terminal housing that receives an input cable; an optical power splitter disposed within the interior of the terminal housing; a first multi-fiber optical adapter coupled to the terminal housing; a first single-fiber optical adapter coupled to the terminal housing; and a pass-through multi-fiber optical adapter coupled to the terminal housing. Split optical signals are provided to the first multi-fiber optical adapter and the first single-fiber optical adapter. Unsplit and indexed optical signals are provided to the pass-through optical adapter.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: November 8, 2022
    Assignee: COMMSCOPE TECHNOLOGIES LLC
    Inventor: Thomas Marcouiller
  • Patent number: 11441893
    Abstract: A system for analyzing a sample includes an illumination source with a plurality of transmitting optical fibers optically coupled to the illumination source and a detector with a plurality of receiving optical fibers optically coupled to the detector. The system further includes a plurality of probes coupled to respective ones of the plurality of transmitting optical fibers and respective ones of the plurality of receiving optical fibers. The plurality of probes are configured to illuminate respective portions of a surface of the sample and configured to receive illumination reflected, refracted, or radiated from the respective portions of the surface of the sample. The system may further include one or more switches and/or splitters configured to optically couple respective ones of the plurality of transmitting optical fibers to the illumination source and/or configured to optically couple respective ones of the plurality of receiving optical fibers to the detector.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: September 13, 2022
    Assignee: KLA Corporation
    Inventors: Prasanna Dighe, Dieter Mueller, Dong Chen, Dengpeng Chen, Steve Zamek, Daniel Kavaldjiev, Alexander Buettner
  • Patent number: 11424830
    Abstract: A laser module includes a laser source and an optical marshalling module. The laser source is configured to generate and output a plurality of laser beams. The plurality of laser beams have different wavelengths relative to each other. The different wavelengths are distinguishable to an optical data communication system. The optical marshalling module is configured to receive the plurality of laser beams from the laser source and distribute a portion of each of the plurality of laser beams to each of a plurality of optical output ports of the optical marshalling module, such that all of the different wavelengths of the plurality of laser beams are provided to each of the plurality of optical output ports of the optical marshalling module. An optical amplifying module can be included to amplify laser light output from the optical marshalling module and provide the amplified laser light as output from the laser module.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: August 23, 2022
    Assignee: Ayar Labs, Inc.
    Inventors: Chen Sun, Roy Edward Meade, Mark Wade, Alexandra Wright, Vladimir Stojanovic, Rajeev Ram, Milos Popovic, Derek Van Orden
  • Patent number: 11346636
    Abstract: The invention relates to a long-range optical device, in particular telescopic sight, comprising a reticle, the position of which can be adjusted, and comprising an associated mechanism for adjusting the reticle, comprising a first magnetic element in the form of a ring magnet, a second magnetic element in the form of a bar magnet, motion-coupled to the reticle and movably mounted relative to the first magnetic element, wherein a variable magnetic characteristic value is formed as a function of the relative position between the first and the second magnetic element, a detection unit, which is configured to detect a change in the magnetic characteristic value formed in the first or second magnetic element, a determination unit to determine reticle position information describing the position of the reticle based on a magnetic characteristic value of the first and/or second magnetic element.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: May 31, 2022
    Assignee: STEINER-OPTIK GmbH
    Inventors: Matthias Hofmann, Peter Haag
  • Patent number: 11340402
    Abstract: An apparatus includes a plurality of connector track elements, each extending substantially perpendicularly from a coupling plane, wherein a particular connector track element of the plurality of connector track elements includes a distribution of at least two magnets adjacent unattached end thereof, a polarity of the magnets on the particular connector track element being selected to provide magnetic repulsion as to at least one adjacent connector track element.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: May 24, 2022
    Assignee: TELESCENT INC.
    Inventor: Anthony Stephen Kewitsch
  • Patent number: 11340410
    Abstract: An photonic circuit includes a substrate, a plurality of first light waveguides disposed on the substrate, the first light waveguides extending in a first direction, a plurality of second light waveguides disposed on the substrate and extending in a second direction intersecting the first direction, and a plurality of first micro-ring resonators disposed on the substrate. Each of the first light waveguides has an intersection with each of the second light waveguides. Each of the intersections is provided with a first micro-ring resonator of the first micro-ring resonators. Each first micro-ring resonator is configured to route signals of a respective wavelength from one of the light waveguides at the intersection to another light waveguide at the intersection.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: May 24, 2022
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Kevin B. Leigh, Luca Ramini, Mir Ashkan Seyedi, Marco Fiorentino
  • Patent number: 11333826
    Abstract: A silicon- and optical phased array-based integrated optically adjustable delay line, comprising, an optical phased array transmitting unit, a slab waveguide transmitting unit, and an optical phased array receiving unit that are sequentially arranged. By the optical phase control transmitting unit, the phase difference between channels is regulated and controlled via a phase shifter to change a far-field interference light spot and form a wave beam with directivity to regulate and control an incident angle of an optical signal entering the slab waveguide, thus changing the propagation path length of the optical signal. Finally, the optical signal is received by a corresponding optical phased array receiving unit to obtain different delay amounts. Large adjustable delay amount is realized and the delay line has the advantages of simple structure and control and high integration level with high application value in optical communication and microwave photonic and optical signal processing.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: May 17, 2022
    Assignee: Shanghai Jiao Tong University
    Inventors: Linjie Zhou, Wensheng Shan, Weihan Xu, Liangjun Lu, Jianping Chen, Jiao Liu
  • Patent number: 11287578
    Abstract: There is provided a small MCS with the number of leads reduced by half as compared with the conventional configuration. A multicast switch according to the present invention is formed on a substrate, comprising: M input ports, N output ports; M×N optical switch units (optical SU); optical waveguides optically connecting the M input ports, M×N optical SU, and N output ports; and leads connected to the respective M×N optical SU. A multicast switch is configured such that by activating one optical SU, an optical signal input to an input port associated with the activated optical SU is output from an output port associated with the activated optical SU. The M×N optical SU include at least a gate switch and a main switch. In each optical SU, the gate switch and the main switch are connected to the common lead.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: March 29, 2022
    Assignee: NTT ELECTRONICS CORPORATION
    Inventors: Mitsuru Nagano, Tatsuya Yoshii, Masahiro Yanagisawa, Tatsunori Nakahashi
  • Patent number: 11284273
    Abstract: Methods and systems for providing a connectivity map to a user equipment (UE) in a wireless network are disclosed. Exemplary methods comprise receiving a request for connectivity information from the UE, sending the request for connectivity information to a connectivity map service application program interface (API), receiving, from the connectivity map service API, a connectivity map, and sending the connectivity map to the UE in response to the request for connectivity information. The connectivity map may be generated using a location and state information associated with one or more nearby APs stored in a database and may comprise a list of available spectrum and one or more parameters associated with each available spectrum. The connectivity map may be used to select at least one of a network, a data-path, a network route, a connectivity strategy, or a spectrum for the UE.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: March 22, 2022
    Assignee: FEDERATED WIRELESS, INC.
    Inventors: Deepak Das, Rohan Grover, Sumit Machwe
  • Patent number: 11267074
    Abstract: A system that uses a scalable array of individually controllable laser beams that are generated by a fiber array system to process materials into an object. The adaptive control of individual beams may include beam power, focal spot width, centroid position, scanning orientation, amplitude and frequency, of individual beams. Laser beam micro scanner modules (MSMs) are arranged into 2D arrays or matrices. During operation of the MSMs, a fiber tip that projects the laser beam is displaced along the x and y-axis in order to scan the focal spot. Each MSM within a matrix can process a corresponding cell (e.g., one square centimeter) during focal spot scanning, and the plurality of MSMs may be operated in parallel to process a plurality of corresponding cells (e.g., with a 10×10 matrix of MSM, 100 cm2) without rastering or otherwise repositioning the assembly over the build surface.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: March 8, 2022
    Assignee: II-VI DELAWARE INC.
    Inventors: Mikhail A. Vorontsov, Abtin Ataei
  • Patent number: 11269152
    Abstract: A structured optical fiber cabling system configured to connect first and second layers of switches in a mesh network is disclosed. The system comprises a plurality of fiber optic modules each including a plurality of first fiber optic ports distributed in a vertical direction when the fiber optic modules are installed in a chassis. A plurality of fiber optic jumper assemblies each include a horizontal segment and a plurality of legs and fiber optic connectors extending from the horizontal segment, with each fiber optic connector configured to connect to a corresponding fiber optic port of the plurality of first fiber optic ports at the same vertical location in each fiber optic module.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: March 8, 2022
    Assignee: Corning Research & Development Corporation
    Inventors: Michael Alan Bell, Eric Raymond Logan, Claudio Mazzali, Brian Keith Rhoney, Sergey Yurevich Ten
  • Patent number: 11271644
    Abstract: An optical signal control device (70) is configured to include: a leakage amount calculating unit (83) calculating, from a light intensity measured by a first light intensity measuring unit (77) and a light intensity measured by a second light intensity measuring unit (78), a leakage amount of light leaking from other optical signals to each of optical signals included in a combined signal; and an attenuation amount calculating unit (84) calculating, from the light intensity measured by the second light intensity measuring unit (78) and the leakage mount of light, an attenuation amount of each of the optical signals included in the combined signal, and a wavelength selective switch (71) attenuates each of the optical signals included in the combined signal depending on the attenuation amount calculated by the attenuation amount calculating unit (84).
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: March 8, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroshi Miura, Naoki Suzuki
  • Patent number: 11231635
    Abstract: A vertical directional coupler or switch comprising a lower and an upper waveguide, integrated with an optical phase change material disposed between the lower and upper waveguides to control a directional of optical coupling between the lower and upper waveguides.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: January 25, 2022
    Assignee: HRL Laboratories, LLC
    Inventors: Jeong-Sun Moon, Ryan G. Quarfoth, Kangmu Lee
  • Patent number: 11199710
    Abstract: A beam scanner of a projector-based near-eye display includes a prismatic element with a reflective polarizer and a quarter-wave waveplate (QWP). The beam-folding prismatic element receives a polarized light beam from a light source and couples the beam to a tiltable reflector, e.g. a 2D tiltable MEMS reflector, for angular scanning the beam. The light beam impinging onto the tiltable reflector is separated from the light beam reflected from the tiltable reflector by polarization. The polarization-based separation is achieved by causing the light beam to propagate through the QWP before and after impinging onto the tiltable reflector. Upon double propagation of the light beam through the QWP, the beam changes its polarization to an orthogonal polarization, which enables its separation from the impinging beam. The beam scanner may receive multiple light beams from multiple light sources. A projector and a near-eye display based on such beam scanners are also disclosed.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: December 14, 2021
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Brian Wheelwright, Weichuan Gao, Stephen James McNally
  • Patent number: 11187962
    Abstract: The disclosed technology teaches a method of reducing the impact of cross-talk between transducers that drive an acousto-optic modulator. The method includes operating the transducers, which are mechanically coupled to an acousto-optic modulator medium, with different frequencies applied to adjoining transducers and producing a time-varying phase relationship between carriers on spatially adjoining modulation channels emanating from the adjoining transducers, with a frequency separation between carriers on the adjoining channels of 400 KHz to 20 MHz. The disclosed technology also includes operating 5 to 32 modulators, which are mechanically coupled to the acousto-optic modulator crystal, and varying the different frequencies applied to the modulators in a sawtooth pattern, varying the different frequencies over a range and then repeating variation over the range.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: November 30, 2021
    Assignee: Mycronic AB
    Inventor: Anders Svensson
  • Patent number: 11150453
    Abstract: A scanning device for scanning an object in a scanning microscope includes at least one scanning unit configured to two-dimensionally scan the object using a light beam. The scanning unit includes at least one deflection element configured to deflect a light beam impinging thereon. The deflection element is rotationally symmetric in shape. At least one rotation device is configured to rotate the scanning unit about an axis of rotation so as to allow for image field rotation.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: October 19, 2021
    Assignee: LEICA MICROSYSTEMS CMS GMBH
    Inventor: Marcus Dyba
  • Patent number: 11150410
    Abstract: Systems, devices, and methods may use input/output (I/O) apparatus and an optical switching medium to switch, or route, optical data signals. The optical switching medium may include a plurality of optical switching regions. The I/O apparatus may transmit optical data signals to and receive optical data signals from the optical switching medium to provide switching functionality.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: October 19, 2021
    Assignee: Seagate Technology LLC
    Inventors: Zoran Jandric, Kevin A. Gomez, Dan Mohr, Anil J. Reddy, Aditya Jain, Krishnan Subramanian
  • Patent number: 11150131
    Abstract: A smartphone is optically coupled to an apparatus that can operate in multiple modes to perform transmission, reflectance, intensity, or scattered light spectroscopy on a sample provided, in an appropriately configured sample cartridge. The apparatus includes a first illumination optical path for illuminating the sample, with light from a light source, on the smartphone for transmission, reflectance, and scattered light spectroscopy. The apparatus also includes a second illumination optical path for illuminating the sample with light from a laser diode for intensity spectroscopy. The apparatus farther includes a collection optical path for collecting light from the sample in each of the modes. An image sensor on the smartphone receives the collected light via a diffraction grating to obtain a spectrum image. The first illumination optical path is substantially parallel to the collection optical path, whereas the second illumination optical path is substantially orthogonal to the collection path.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: October 19, 2021
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Brian T. Cunningham, Kenneth D. Long
  • Patent number: 11128938
    Abstract: A method (100) is disclosed for filtering an optical signal to generate at least one electrical output. The method comprises receiving an optical signal (110) and directing at least a part of the optical signal through an n×m array of wavelength selective elements (120), the n×m array comprising n parallel groups, each group comprising m coupled wavelength selective elements. The method further comprises photodetecting an output from each of the n groups of coupled wavelength selective elements (130), and electrically selecting at least one of the photodetected outputs (140). Also disclosed are an optical filtering module (200, 300) a controller (400) for an optical filtering module and a computer program.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: September 21, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Francesco Testa, Fabio Cavaliere, Erin Seder
  • Patent number: 11086079
    Abstract: Wavelength division multiplexing (WDM) has enabled telecommunication service providers to provide multiple independent multi-gigabit channels on one optical fiber. To meet demands for improved performance, increased integration, reduced footprint, reduced power consumption, increased flexibility, re-configurability, and lower cost monolithic optical circuit technologies and microelectromechanical systems (MEMS) have become increasingly important. However, further integration via microoptoelectromechanical systems (MOEMS) of monolithically integrated optical waveguides upon a MEMS provide further integration opportunities and functionality options. Such MOEMS may include MOEMS mirrors and optical waveguides capable of deflection under electronic control. In contrast to MEMS devices where the MEMS is simply used to switch between two positions the state of MOEMS becomes important in all transition positions.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: August 10, 2021
    Assignee: Aeponyx Inc.
    Inventors: Francois Menard, Michael Menard, Frederic Nabki, Martin Berard, Jonathan Briere
  • Patent number: 11086078
    Abstract: Wavelength division multiplexing (WDM) has enabled telecommunication service providers to provide multiple independent multi-gigabit channels on one optical fiber. To meet demands for improved performance, increased integration, reduced footprint, reduced power consumption, increased flexibility, re-configurability, and lower cost monolithic optical circuit technologies and microelectromechanical systems (MEMS) have become increasingly important. However, further integration via microoptoelectromechanical systems (MOEMS) of monolithically integrated optical waveguides upon a MEMS provide further integration opportunities and functionality options. Such MOEMS may include MOEMS mirrors and optical waveguides capable of deflection under electronic control. In contrast to MEMS devices where the MEMS is simply used to switch between two positions the state of MOEMS becomes important in all transition positions.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: August 10, 2021
    Assignee: Aeponyx Inc.
    Inventors: Francois Menard, Michael Menard, Frederic Nabki, Martin Berard, Jonathan Briere
  • Patent number: 11067752
    Abstract: Embodiments of the present invention provide a reconfigurable optical add/drop multiplexer, including: an input component, an output component, a beamsplitter, a first switch array, a wavelength dispersion system, a redirection system, and a second switch array. The input component includes M+P input ports, the output component includes N output ports, the beamsplitter is configured to: receive M input beams from M input ports, and split each of the M input beams into at least N parts, to obtain at least M×N beams; the first switch array includes at least P switch units; and the second switch array includes N rows of switch units. The first switch array, the beamsplitter, the wavelength dispersion system, the redirection system, and the second switch array are arranged so that P optical add beams and sub-beams of M×N beams in the at least M×N beams can be routed to the N output ports.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: July 20, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yunfei Yan, Zhiyong Feng, Han Zhao, Liangjia Zong
  • Patent number: 11070285
    Abstract: A method includes obtaining traffic demand data indicating user traffic demand through a communication system including a multistage interconnection network. The method also includes generating first path data based on the traffic demand data. The first path data represents a configuration of components of the multistage interconnection network to provide traffic paths through the multistage interconnection network. The method includes selectively generating second path data based on a determination that a potential failure of the multistage interconnection network cannot be isolated, based on the traffic paths, to a single component. The second path data represents a modified configuration of the components to provide the traffic paths and test paths through the multistage interconnection network to facilitate isolation of the failure of the multistage interconnection network to the single component.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: July 20, 2021
    Assignee: THE BOEING COMPANY
    Inventors: James Y. Li, Dimitri D. Thomas
  • Patent number: 11063683
    Abstract: A node configured to operate in an optical network includes P switching planes interconnected by an S×S cross-plane switch, P>1; and Ni degrees per switching plane Pi where i=1 to P, each degree formed by corresponding degree components having R ports, wherein a first set of ports of the R ports is for intra-plane switching, a second set of ports of the R ports is for inter-plane switching, and a third set of ports of the R ports is for in-plane add/drop. S is greater than or equal to a sum of a number of degrees across all of the P switching planes. R is greater than or equal to a sum of the first set of ports, the second set of ports, and the third set of ports.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: July 13, 2021
    Assignee: Ciena Corporation
    Inventors: Kevan Peter Jones, Loren Berg
  • Patent number: 11063665
    Abstract: An optical wireless communication (OWC) receiver apparatus for receiving data streams from at least one transmitter apparatus, each data stream encoded on abeam of light of a respective different wavelength or range of wavelengths propagating through free space between the at least one transmitter apparatus and the receiver apparatus, the apparatus comprising: a wavelength-selective element configured to receive the beams after their propagation through free space and to direct a selected at least one of the beams having a selected wavelength or range of wavelengths to a detector, wherein the detector is configured to receive said selected at least one of the beams and in response to output a detection signal; at least one control element operable to control at least one physical property of the wavelength-selective element thereby to select said at least one of the beams for direction to the detector.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: July 13, 2021
    Assignee: PURELIFI LIMITED
    Inventor: Duncan John William Walker
  • Patent number: 11009664
    Abstract: Wavelength division multiplexing (WDM) has enabled telecommunication service providers to provide multiple independent multi-gigabit channels on one optical fiber. To Microoptoelectromechanical systems (MOEMS) integrating optical waveguides upon a MEMS can provide further integration opportunities and functionality options. Improvements to the design and implementation of MOEMS devices are presented where monolithically integrated optical waveguides are directly supported, moved and/or deformed upon a beam coupled to and manipulated by a MEMS. Accordingly, such MOEMS can provide programmable functionality by enabling alignment of the optical waveguide upon the MEMS to one of multiple optical waveguides disposed relative to the moving facet of the rotating optical waveguide.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: May 18, 2021
    Assignee: Aeponyx Inc.
    Inventors: Francois Menard, Michael Menard, Frederic Nabki, Martin Berard, Jonathan Briere
  • Patent number: 11002912
    Abstract: In the examples provided herein, a system includes an input waveguide, where a first end of the input waveguide is coupled to a light-emitting optical transmitter to allow the emitted light to enter the input waveguide, and a first ring resonator tunable to be resonant at a first resonant wavelength, wherein the first ring resonator is positioned near the input waveguide to couple a light at the first resonant wavelength from the input waveguide to the first ring resonator. The system also has a bus waveguide positioned to couple the light at the first resonant wavelength in the first ring resonator to the bus waveguide, and a mechanism to wavelength-tune the first ring resonator to a particular wavelength.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: May 11, 2021
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Joaquin Matres, Wayne Victor Sorin, Sagi Mathai, Lars Helge Thylen, Michael Renne Ty Tan
  • Patent number: 10986425
    Abstract: A network system for a data center is described in which a switch fabric may provide full mesh interconnectivity such that any servers may communicate packet data to any other of the servers using any of a number of parallel data paths. Moreover, according to the techniques described herein, edge-positioned access nodes, optical permutation devices and core switches of the switch fabric may be configured and arranged in a way such that the parallel data paths provide single L2/L3 hop, full mesh interconnections between any pairwise combination of the access nodes, even in massive data centers having tens of thousands of servers. The plurality of optical permutation devices permute communications across the optical ports based on wavelength so as to provide, in some cases, full-mesh optical connectivity between edge-facing ports and core-facing ports.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: April 20, 2021
    Assignee: Fungible, Inc.
    Inventors: Pradeep Sindhu, Satish D Deo, Deepak Goel, Sunil Mekad
  • Patent number: 10931393
    Abstract: An intelligence-defind optical tunnel network system includes a first tier network and a second tier network. The first tier network includes multiple pods, any one of which includes multiple Optical Add-Drop Sub-systems (OADS) configured to transmit data between corresponding servers through ToR switches. The second tier network includes multiple Optical Switch Interconnect Sub-systems (OSIS). Any two of the OSISs transmit a corresponding lateral optical signal via a first line correspondingly. Any two adjacent OSISs are coupled to the OADSs in the same pod of the first tier via multiple optical paths respectively.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: February 23, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Maria Chi-Jui Yuang, Po-Lung Tien, Wei-Zhang Ruan, Ching-Nien Chen, Tien-Chien Lin
  • Patent number: 10924200
    Abstract: A reconfigurable optical add/drop multiplexer includes N input ports, N output ports, M add ports and M drop ports. Each of the N input ports and each of the M add ports is respectively connected to one first polarizer. Each of the N output ports and each of the M drop ports is respectively connected to one second polarizer. A first end of the first polarizer is connected to a second end of the first polarizer, forming a loop including the first polarizer. A first end of the second polarizer is connected to a second end of the second polarizer, forming a loop including the second polarizer. An annular waveguide array is between a loop LIi and a loop LOj. A first polarizer included in the loop LIi is connected to an ith input port. A second polarizer included in the loop LOj is connected to a jth output port.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: February 16, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ruiqiang Ji, Shengmeng Fu, Yanbo Li, Lewei Zhang, Li Zeng
  • Patent number: 10924186
    Abstract: An optical fiber link includes a local host control device including a microcontroller unit transmitting a host transmitting signal, and an electrical-to-optical converter converting the host transmitting signal to a laser beam optical signal; a remote sensor device including a sensor device transmitting a sensor transmitting signal and an optical return module selectively passing or blocking part of the laser beam optical signal; and a fiber cable including an upstream fiber link and a downstream fiber link and establishing communications between the local host control device and the remote sensor device, the laser beam optical signal being delivered from the local host control device to the remote sensor device through the downstream fiber link. The optical return module selectively passes or blocks the part of the laser beam optical signal delivered by the downstream fiber link based on the sensor transmitting signal to the upstream fiber link.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: February 16, 2021
    Assignee: NETGAMI SYSTEM L.L.C.
    Inventors: John Lynn, Eric Lynn
  • Patent number: 10914896
    Abstract: An elementary photonic interconnect switch is integrated into an optoelectronic chip and includes four simple photonic interconnect switches. Each simple photonic interconnect switch has two optical waveguides that cross and are linked by a ring resonator having one ring. A basic photonic interconnect switch, a complex photonic interconnect switch and/or a photonic interconnect network are integrated into an optoelectronic chip and including at least two elementary photonic interconnect switches.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: February 9, 2021
    Assignee: STMicroelectronics (Crolles 2) SAS
    Inventors: Nicolas Michit, Patrick Le Maitre
  • Patent number: 10884956
    Abstract: A memory system has a plurality of memory devices coupled with a hub in discrete and shared port arrangements. A plurality of bus lines connect the plurality of memory devices to the hub, including a first subset of bus lines connected in a point-to-point configuration between the hub and a particular memory device, and a second subset of bus lines connected to all the memory devices in the plurality of memory devices including the particular memory device. Bus operation logic is configured to use the first subset of bus lines in a first operation accessing the particular memory device while simultaneously using the second subset of bus lines in a second operation accessing a different selected memory device of the plurality of memory devices.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: January 5, 2021
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Kuen-Long Chang, Ken-Hui Chen, Chin-Hung Chang
  • Patent number: 10880627
    Abstract: Data center interconnections, which encompass WSCs as well as traditional data centers, have become both a bottleneck and a cost/power issue for cloud computing providers, cloud service providers and the users of the cloud generally. Fiber optic technologies already play critical roles in data center operations and will increasingly in the future. The goal is to move data as fast as possible with the lowest latency with the lowest cost and the smallest space consumption on the server blade and throughout the network.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: December 29, 2020
    Assignee: Aeponyx Inc.
    Inventors: Francois Menard, Martin Berard, Jonathan Briere
  • Patent number: 10788658
    Abstract: Optical cross connects and methods for use therewith are described herein. In an embodiment, an optical cross connect includes first and second mirror arrays, first and second light sources that respectively emit first and second color coded light beams (e.g., each of which includes red, green and blue light), and first and second cameras configured to respectively capture first and second color images of the first and second color coded light beams reflected respectively from the first and second mirror arrays. The optical cross connect also includes a controller configured to perform closed loop feedback control of the first and second mirror arrays, based on the first and second color images, when the controller controls how optical signals are transferred between individual optical fibers in a first bundle of optical fibers and individual optical fibers in a second bundle of optical fibers.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: September 29, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventors: Jianmin Gong, Francis Man, Dongyu Geng, Xin Tu, Ming Li, Peng Zhang
  • Patent number: 10757489
    Abstract: Data center interconnections, which encompass WSCs as well as traditional data centers, have become both a bottleneck and a cost/power issue for cloud computing providers, cloud service providers and the users of the cloud generally. Fiber optic technologies already play critical roles in data center operations and will increasingly in the future. The goal is to move data as fast as possible with the lowest latency with the lowest cost and the smallest space consumption on the server blade and throughout the network.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: August 25, 2020
    Assignee: Aeponyx Inc.
    Inventors: Francois Menard, Martin Berard, Jonathan Briere
  • Patent number: 10739623
    Abstract: The invention relates to a waveguide comprising a substrate (1) on which a layer stack (2) of at least two layer formations (3a, 3b) is arranged, each layer formation (3a, 3b) having at least one transparent dielectric layer (3a1, 3b2), in particular with a higher refractive index than the substrate (1). A structure which influences light propagation, in particular a structure (4) which extends in a layer-like manner, at least in some regions, is arranged between two adjacent layer formations (3a, 3b), the position of the structure (4) in the layer stack corresponding to a node position of a waveguide mode which can be guided in the waveguide and has at least one, preferably exactly one node (5a). The waveguide comprises at least one means for at least temporarily changing the position of the node (5a) of a guided waveguide mode and the structure (4) relative to each other.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: August 11, 2020
    Assignee: BERGISCHE UNIVERSITAET WUPPERTAL
    Inventor: Patrick Goerrn
  • Patent number: 10694268
    Abstract: Data center interconnections, which encompass WSCs as well as traditional data centers, have become both a bottleneck and a cost/power issue for cloud computing providers, cloud service providers and the users of the cloud generally. Fiber optic technologies already play critical roles in data center operations and will increasingly in the future. The goal is to move data as fast as possible with the lowest latency with the lowest cost and the smallest space consumption on the server blade and throughout the network.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: June 23, 2020
    Assignee: AEPONYX INC.
    Inventors: Francois Menard, Martin Bérard, Jonathan Briere
  • Patent number: 10666363
    Abstract: Embodiments of the present application provide a method and an apparatus for transmitting an optical signal and a wavelength selective switch. The transmission method includes: performing diffraction processing on an input optical signal, to obtain signal light and crosstalk light. The signal light is output to a target output port in a plurality of output ports. The diffraction processing includes deflecting, in a second direction, a diffraction direction of a part or all of the crosstalk light, so that the part or all of the crosstalk light is output to an area outside the output ports.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: May 26, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Liangjia Zong, Han Zhao, Zhiyong Feng, Yunfei Yan
  • Patent number: 10656496
    Abstract: An optical device includes a row of optical units, each of the optical units comprising an antenna element and an associated phase shifting element, a first optical power splitter optically coupled to a first optical input/output element, and a first plurality of boundary adjustment elements. In the optical phased array, each of the first plurality of boundary adjustment units optically couples the first optical power splitter to different sub-rows of the row of optical units, and each of the plurality of boundary adjustment elements include a sub-row amplitude adjustment element and a sub-row phase adjustment element.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: May 19, 2020
    Assignee: University of Southern California
    Inventors: Hossein Hashemi, SungWon Chung, Hooman Abediasl
  • Patent number: 10651938
    Abstract: Methods and apparatus for providing enhanced optical networking service and performance which are particularly advantageous in terms of low cost and use of existing infrastructure, access control techniques, and components. In the exemplary embodiment, current widespread deployment and associated low cost of Ethernet-based systems are leveraged through use of an Ethernet CSMA/CD MAC in the optical domain on a passive optical network (PON) system. Additionally, local networking services are optionally provided to the network units on the PON since each local receiver can receive signals from all other users. An improved symmetric coupler arrangement provides the foregoing functionality at low cost. The improved system architecture also allows for fiber failure protection which is readily implemented at low cost and with minimal modification.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: May 12, 2020
    Assignee: TIME WARNER CABLE ENTERPRISES LLC
    Inventors: Jun Xu, Nanjian Qian
  • Patent number: 10620376
    Abstract: Embodiments of the present invention provide a reconfigurable optical add/drop multiplexer, including: an input component, an output component, a beamsplitter, a first switch array, a wavelength dispersion system, a redirection system, and a second switch array. The input component includes M+P input ports, the output component includes N output ports, the beamsplitter is configured to: receive M input beams from M input ports, and split each of the M input beams into at least N parts, to obtain at least M×N beams; the first switch array includes at least P switch units; and the second switch array includes N rows of switch units. The first switch array, the beamsplitter, the wavelength dispersion system, the redirection system, and the second switch array are arranged so that P optical add beams and sub-beams of M×N beams in the at least M×N beams can be routed to the N output ports.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: April 14, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yunfei Yan, Zhiyong Feng, Han Zhao, Liangjia Zong
  • Patent number: 10614843
    Abstract: A recording head has a waveguide core with an input end proximate an energy source at an input surface of the recording head. The waveguide core couples light from the energy source to a near-field transducer that heats a recording medium in response to the light. An input coupler extends along the waveguide core from the input end to a termination region that is away from the input end in a light propagation direction. The input coupler has a first refractive index between that of the waveguide core and a surrounding material. The input coupler is wider than the waveguide core and has a slanted edge at the termination region. The slanted edge crosses the waveguide core such that the input coupler narrows to a neck away from the waveguide core in a crosstrack direction.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: April 7, 2020
    Assignee: Seagate Technology LLC
    Inventors: Christopher Neil Harvey, Kelly Elizabeth Callan, Aidan Dominic Goggin, John Bernard McGurk, Reyad Mehfuz, Christopher Gerwyn Ward
  • Patent number: 10578807
    Abstract: An optical apparatus comprising a reflective optical modulator and an integrated planar lightwave circuit. The circuit can have one or more pairs of input and output planar waveguides thereon. The input planar waveguide is optically coupleable to a first optical fiber and the output optical waveguide is optically coupleable to a second optical fiber. End segments of the input planar waveguide and the output planar waveguide are tilted towards each other such that the input planar waveguide is able to direct an optical signal from the planar lightwave circuit to a reflective modulator. The reflective optical modulator is configured to data modulate the optical signal and transmit said data modulated optical signal to the end segment of the output planar waveguide.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: March 3, 2020
    Assignee: Nokia of America Corporation
    Inventor: Mark P. Earnshaw
  • Patent number: 10541754
    Abstract: Optical fiber networks, devices, and related methods are disclosed herein. In some aspects, an optical fiber network includes network devices having optical fibers for transmitting and receiving data. In the network, 100% of the optical fibers are utilized end-to-end across the plurality of network devices. Networks herein are also devoid of converters and include only a single direction connection between fibers at interconnect points between devices. Network devices may include ferrules, where at least some of the ferrules are devoid of an optical fiber. A method for providing an optical fiber network includes providing network devices having optical fibers for transmitting and receiving data and transmitting data using 100% of the optical fibers end-to-end across the network devices.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: January 21, 2020
    Assignees: Sumitomo Electric Lightwave Corp., Sumitomo Electric Industries, Ltd.
    Inventors: Tsutomu Watanabe, William Dmytro Charuk, Jamie Joshue Seawell, Yukihiro Yokomachi
  • Patent number: 10509175
    Abstract: This application discloses an optical switch and an optical switching system. Both a first waveguide and a second waveguide of the optical switch are immovable relative to a substrate and are located in a first plane. A first deformable waveguide is also located in the first plane. A first section of the first deformable waveguide is fixed relative to the substrate, and a second section other than the first section can deform under control of a first actuator. When the first deformable waveguide is in a first state, the first deformable waveguide is optically decoupled from the first waveguide and the second waveguide, and the optical switch is in a through state. When the first deformable waveguide is in a second state, the first deformable waveguide is optically coupled to the first waveguide and the second waveguide, and the optical switch is in a drop state.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: December 17, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Xin Tu
  • Patent number: 10487356
    Abstract: Optical delivery devices and integrated analytical systems comprising the optical delivery devices are provided. The optical delivery devices include optical inputs, optical outputs, and integrated optical waveguides that are configured for coupling of optical energy to a target waveguide device through free space. The integrated analytical systems include the optical delivery devices in combination with the target waveguide device. The devices and systems are useful in the analysis of highly multiplexed optical reactions in large numbers at high densities, including biochemical reactions, such as nucleic acid sequencing reactions. The devices provide for the efficient coupling of optical excitation energy from an optical source to the optical reactions. Optical signals emitted from the reactions can thus be measured with high sensitivity and discrimination. The devices and systems are well suited for miniaturization and high throughput.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: November 26, 2019
    Assignee: Pacific Biosciences of California, Inc.
    Inventors: Paul Lundquist, Mark McDonald, Aaron Rulison
  • Patent number: 10425707
    Abstract: A network system for a data center is described in which a switch fabric provides full mesh interconnectivity such that any servers may communicate packet data to any other of the servers using any of a number of parallel data paths. Moreover, according to the techniques described herein, edge-positioned access nodes, optical permutation devices and core switches of the switch fabric may be configured and arranged in a way such that the parallel data paths provide single L2/L3hop, full mesh interconnections between any pairwise combination of the access nodes, even in massive data centers having tens of thousands of servers. The plurality of optical permutation devices permute communications across the optical ports based on wavelength so as to provide full-mesh optical connectivity between edge-facing ports and core-facing ports without optical interference.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: September 24, 2019
    Assignee: FUNGIBLE, INC.
    Inventors: Pradeep Sindhu, Satish Deo, Deepak Goel, Sunil Mekad
  • Patent number: 10422960
    Abstract: This application discloses an optical switch and an optical switching system. The optical switch includes a first waveguide, a second waveguide, and a movable waveguide, the first waveguide and the second waveguide are immovable relative to a substrate and are located in a plane, and an optical coupling relationship exists between the first waveguide and the second waveguide; the movable waveguide is movable relative to the substrate, and the movable waveguide is optically coupled to an input section or an output section of the first waveguide; when the movable waveguide is located at a first location, the movable waveguide is optically decoupled from the first waveguide, and the optical switch is in a through state; and when the movable waveguide is located at a second location, the movable waveguide is optically coupled to the input section or the output section, and the optical switch is in a drop state.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: September 24, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jiejiang Xing, Xin Tu, Ming Li