Matrix Switch (i.e., M X N, Where M And N Are 3 Or More) Patents (Class 385/17)
  • 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: 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: 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: 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: 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: 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: 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: 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: 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
  • 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: 10317640
    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: February 23, 2016
    Date of Patent: June 11, 2019
    Assignee: CommScope Technologies LLC
    Inventor: Thomas Marcouiller
  • Patent number: 10291971
    Abstract: An optical cross-connect node includes a first optical switching switch, a second optical switching switch, a wave-dropping wavelength switching switch, a wave-adding wavelength switching switch, and a pass-through dimension switching switch. The first optical switching switch receives an optical signal, where the optical signal includes a first optical signal and/or a second optical signal. The first optical switching switch sends the first optical signal to the wave-dropping wavelength switching switch. The first optical switching switch sends the second optical signal to the pass-through dimension switching switch. The wave-dropping wavelength switching switch performs wavelength switching on the first optical signal. The wave-adding wavelength switching switch performs wavelength switching on a third optical signal generated locally and sends it to the second optical switching switch.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: May 14, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Dawei Wang, Yi Qian
  • Patent number: 10264331
    Abstract: Disclosed is a method device assembly and system for facilitating the interconnection of communication bearing cables connected cable connectors. An interconnect-point support structure comprising two or more cable connector slots, wherein in each of the two or more slots is adapted to host a cable connector attached to a respective cable. A mechanical arm functionally associated with the interconnect-point support structure is adapted to release a cable connector, mobilize and mate it to another connector.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: April 16, 2019
    Assignee: XENOPTICS IP HOLDINGS PTY LTD.
    Inventors: Zohar Avrahami, Joseph Arol
  • Patent number: 10248570
    Abstract: A method for predicting a way of a set associative shadow cache is disclosed. As a part of a method, a request to fetch a first far taken branch instruction of a first cache line from an instruction cache is received, and responsive to a hit in the instruction cache, a predicted way is selected from a way array using a way that corresponds to the hit in the instruction cache. A second cache line is selected from a shadow cache using the predicted way and the first cache line and the second cache line are forwarded in the same clock cycle.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: April 2, 2019
    Assignee: Intel Corporation
    Inventors: Mohammad Abdallah, Ravishankar Rao, Karthikeyan Avudaiyappan
  • Patent number: 10230476
    Abstract: A Method and Apparatus for Flexible Coherent and Scale-out Computing Architecture have been disclosed. In one implementation a plurality of integrated photonics are used to effect communications.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: March 12, 2019
    Assignee: INTEGRATED DEVICE TECHNOLOGY, INC.
    Inventor: Mohammad Shahanshah Akhter
  • Patent number: 10187107
    Abstract: An electrochromic (EC) switch is disclosed and claimed. The EC switch includes an EC region and an electrolyte region separated by a dielectric region on a ground plane. A microstrip configured to transmit an RF signal is adjacent to and in electrical contact with the EC region. A conductive pad is adjacent to the electrolyte region and a bias line couples the microstrip to the electrolyte region. Voltages applied between the ground plane and the conductive pad and between the conductive pad and the bias line switch the microstrip. The EC switch may be incorporated within a wide variety of RF devices, for example, attenuators, phase shifters and antennas.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: January 22, 2019
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Senad Bulja, Rose Kopf
  • Patent number: 10162121
    Abstract: A method and switch are provided for reconfigurable optical space switch. The method includes receiving a control signal, from a controller, to configure a path through the reconfigurable optical space switch. The method also includes applying a voltage to one or more direction changing devices at each intersection between each of the east-west optical waveguides and each of the north-south optical waveguides to form the path through the reconfigurable optical space switch. The method additionally includes receiving an optical signal in one of a plurality of passive waveguides at a beginning of the path, including the plurality of east-west optical waveguides and the plurality of north-south optical waveguides. The method further includes outputting the optical signal out on of the plurality of passive waveguides at an end of the path.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: December 25, 2018
    Assignee: NEC Corporation
    Inventors: Ivan B. Djordjevic, Shaoliang Zhang, Ting Wang
  • Patent number: 10088634
    Abstract: One example includes an optical port-shuffling module. The module includes a plurality of inputs to receive a respective plurality of optical signals. The module also includes a plurality of outputs to provide the respective plurality of optical signals from the optical port-shuffling module. The module further includes a plurality of total-internal-reflection (TIR) mirrors arranged in optical paths of at least a portion of the plurality of optical signals to reflect the at least a portion of the plurality of optical signals to at least a portion of the plurality of outputs to shuffle the plurality of optical signals between the plurality of inputs and the plurality of outputs.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: October 2, 2018
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Jason Pelc, Charles M Santori, Marco Fiorentino, Sr., Raymond G Beausoleil, Terrel L Morris
  • Patent number: 10062115
    Abstract: A variety of embodiments for hardware-accelerating the processing of financial market depth data are disclosed. A coprocessor, which may be resident in a ticker plant, can be configured to update order books based on financial market depth data at extremely low latency. Such a coprocessor can also be configured to enrich a stream of limit order events pertaining to financial instruments with data from a plurality of updated order books.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: August 28, 2018
    Assignee: IP Reservoir, LLC
    Inventors: David E. Taylor, Scott Parsons, Jeremy Walter Whatley, Richard Bradley, Kwame Gyang, Michael DeWulf
  • Patent number: 10057665
    Abstract: Methods and systems for bias control in an optical switch fabric include monitoring optical power at outputs of a plurality of switch elements in an N×N switch fabric that has N inputs, N outputs, and M?2 stages. A bias control of a first of the plurality of switch elements is adjusted. It is determined whether the optical power at the outputs of the first switch element after bias control adjustment conform more closely to a predetermined criterion relative to the monitored optical power at the outputs of the first switch element prior to adjustment. The adjusting and determining steps are repeated for each of the remainder of the plurality of switch elements.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: August 21, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Nicolas Dupuis, Daniel M. Kuchta, Benjamin G. Lee, Alexander Rylyakov, Clint L. Schow
  • Patent number: 10048445
    Abstract: A multicast exchange optical switch includes an input port device including M input ports, an output port device including N output ports, a diffractive beam splitter, an optical focusing component, and a 1×N array of reflective devices. The diffractive beam splitter diffracts each input signal beam from the input ports into at least N directions. The optical focusing component includes a first focusing lens and a second focusing lens. The first focusing lens focuses sub-beams from the respective input ports along the Y-axis direction having the same diffraction order. The second focusing lens focuses on the X-axis direction sub-beams from the same input port having different diffraction orders. The 1×N array of reflective devices is provided at the focal plane of the optical focusing component and each reflective device reflects a sub-beam from any one of the input ports to any one of the output ports.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: August 14, 2018
    Assignee: Accelink Technologies Co., Ltd.
    Inventors: Qianggao Hu, Liping Sun, Bo Zhang, Leilei Hu, Liu Yang, Yuan Zhang, Fei Liang
  • Patent number: 10042122
    Abstract: This invention discloses patch-panel systems for organized configuration management of large numbers of fiber optic interconnection strands, wherein each strand transmits high bandwidth signals between devices. In particular, a system for the programmable interconnection of large numbers of optical fiber strands is provided, whereby strands connecting a two-dimensional array of connectors are mapped in an ordered and rule based fashion into a one-dimensional array with substantially straight lines strands there between. The braid of fiber optic strands is partitioned into multiple independent, non-interfering zones or subbraids. The separation into subbraids provides spatial clearance for one or more robotic grippers to enter the free volume substantially adjacent to the two-dimensional array of connectors and to mechanically reconfigure one or more optical fiber strands without interrupting or entangling other fiber optic strands.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: August 7, 2018
    Assignee: Telescent Inc.
    Inventor: Anthony Stephen Kewitsch
  • Patent number: 10009669
    Abstract: An optical transmitter includes an optical modulator configured to modulate an optical signal, a dual-stage space switch configured to receive, as an input, the modulated optical signal from the optical modulator, and output ports configured to control light outputs based on an operation of the dual-stage space switch.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: June 26, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sanghwa Yoo, Joon Ki Lee
  • Patent number: 9967033
    Abstract: An apparatus comprising an arrayed waveguide grating (AWG) comprising a plurality of AWG ports, a power splitter comprising a plurality of splitter ports, and a plurality of optical interleavers, each coupled to a respective AWG port and a respective splitter port, for directing incoming optical signals to one of the AWG and the power splitter.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: May 8, 2018
    Assignee: Futurewei Technologies, Inc.
    Inventors: Ning Cheng, Frank J. Effenberger
  • Patent number: 9946023
    Abstract: An optical attenuator and/or optical terminator is provided. The device includes an optical channel having two regions with different optical properties, such as an undoped silicon region which is less optically absorptive and a doped silicon region which is more optically absorptive. Other materials may also be used. A facet at the interface between the two regions is oriented at a non-perpendicular angle relative to a longitudinal axis of the channel. The angle can be configured to mitigate back reflection. Multiple facets may be included between different pairs of regions. The device may further include curved and/or tapers to further facilitate attenuation and/or optical termination.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: April 17, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Patrick Dumais, Dritan Celo