Patents Examined by Daniel G Dobson
  • Patent number: 12040839
    Abstract: A two-dimensional scalable high-power optical phased array architecture with beam steering is provided. The present disclosure is related to integrated optical transmitters wherein an array of antenna elements together with laser sources can transmit high-power optical signals. The optical transmitters can also beamform and steer the signal toward the desired direction. The architecture facilitates a simplified control of the delay tuning elements by using a single control signal for the entire row and single control signal for the entire column.
    Type: Grant
    Filed: November 28, 2022
    Date of Patent: July 16, 2024
    Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
    Inventor: Saeed Zeinolabedinzadeh
  • Patent number: 12032010
    Abstract: An electrometer is disclosed. The electrometer includes a housing, a vapor cell, a micro-optical system, an electric field generator, and a control electronic subsystem. The vapor cell has a top and a bottom and includes a vapor of quantum particles. The micro-optical system is configured to route laser fields through the vapor cell in a direction transverse to the top and the bottom. The electric field generator is configured to provide an electric field in the vapor cell. The housing includes a surface adapted to mate to a portion of a fuselage surrounding a hole.
    Type: Grant
    Filed: May 25, 2023
    Date of Patent: July 9, 2024
    Assignee: ColdQuanta, Inc.
    Inventor: Seth Charles Caliga
  • Patent number: 12034526
    Abstract: An add-drop network element (100) for an optical communications network. The add-drop network element comprises an optical amplifier (102) having an input port and an output port. The add-drop network element comprises also comprises an optical coupler (104) and an optical splitter (106). The optical coupler (104) comprises an add input port, a through input port and an output port, the output port of the optical coupler (104) being connected to the input port of the optical amplifier. The optical splitter (106) comprising a drop output port, a through output port and an input port, the input port of the optical splitter (106) being connected to the output port of the optical amplifier.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: July 9, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Alfredo Palagi, Roberto Magri, Antonio Tartaglia
  • Patent number: 12028113
    Abstract: A polarization modulation method of photonic pulses, in particular for generating quantum cryptographic keys, ensures an optimum stability of the outgoing polarization states, and comprises the steps of: generating a plurality of photonic pulses with an unspecified polarization state obtained by the overlapping of both the horizontal and vertical polarization modes thereof, and routing them in a first polarization-maintaining fiber; splitting said horizontal and vertical polarization modes and routing them in respective terminals of a second polarization-maintaining fiber forming a ring, whereby they travel such ring clockwise and counter-clockwise respectively, or vice versa; inducing a respective phase modulation (oe, ol) of both said polarization modes, in one point of said ring which is spaced from said terminals by optical paths having different length along said ring, thereby a polarization-maintaining fiber delay line is determined; and recombining said polarization modes in one single photonic pulse b
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: July 2, 2024
    Assignee: UNIVERSITÀ DEGLI STUDI DI PADOVA
    Inventors: Giuseppe Vallone, Costantino Agnesi, Marco Avesani, Paolo Villoresi
  • Patent number: 12028663
    Abstract: Comprises aggregating data received by a first number of server ports of an edge switch. The server ports operate at a first data speed. The aggregated data is distributed into a plurality of virtual lanes with each virtual lane carrying a portion of the aggregated data at a second data speed less than the first data speed.
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: July 2, 2024
    Assignee: Infinera Corporation
    Inventor: Ting-Kuang Chiang
  • Patent number: 12015446
    Abstract: Disclosed herein are optical transceivers with multi-laser modules, as well as related optoelectronic assemblies and methods. In some embodiments, an optical transceiver may include: a first laser and a second laser; an optical output path, wherein an output of the first laser is coupled to the optical output path; and switching circuitry to decouple the output of the first laser from the optical output path and to couple an output of the second laser to the optical output path.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: June 18, 2024
    Assignee: Intel Corporation
    Inventors: Saeed Fathololoumi, Ling Liao, Quan Tran
  • Patent number: 12009861
    Abstract: Methods, systems, and apparatuses for light-based communication are described. VLC may be used to communicate video content, an electronic program guide (EPG), location information, an advertisement, and/or any other data, content, and/or content item to a user device. VLC may be used to communicate data/information associated with a wireless network, provision a service, navigate an area, track content and/or content item consumption, and more. Light (e.g., VLC, etc.) may be used to communicate any information/data.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: June 11, 2024
    Assignee: Comcast Cable Communications, LLC
    Inventors: Glenn Barnett, Manohar Reddy Paduri
  • Patent number: 12010468
    Abstract: Systems and methods include receiving (S11) data for a plurality of elements associated with an optical network; determining (S12) an incremental noise penalty for each element of the plurality of elements based on the received data; and storing (S13) the incremental noise penalty for each element of the plurality of elements. The steps can further include determining (S14) Signal-to-Noise Ratio (SNR) across an optical path in the optical network by concatenating associated incremental noise penalties for each element in the optical path along with corrections. The present disclosure includes a fast, nonlinear estimation process with improved accuracy for low loss spans compared to traditional closed-form GN models, as well as a method to determine the coherent nonlinear penalty in an arbitrary concatenation of mixed heterogeneous fibers which is not considered by existing fast nonlinear interference calculation methods.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: June 11, 2024
    Assignee: Ciena Corporation
    Inventors: Alex W. MacKay, Fangyuan Zhang, David W. Boertjes, Andrew D. Shiner
  • Patent number: 12009844
    Abstract: Time taken for resuming communication in a protection scheme using a backup path in an optical communication system including a master station device and a plurality of slave station devices is decreased. The plurality of slave station devices are connected in parallel to a looped path. A communication path between the master station device and each of the slave station device includes a normal path and a backup path. The master station device performs communication control processing for each of the slave station device based on RTT. A first slave station device is a slave station device with which communication through the normal path has become impossible. First backup path RTT of the first slave station device is calculated based on first normal path RTT of the first slave station device, first partial RTT between the master station device and the looped path, and loop propagation time necessary for one trip through the looped path.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: June 11, 2024
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Rintaro Harada, Hirotaka Ujikawa, Shin Kaneko, Jun Terada
  • Patent number: 12003631
    Abstract: A method is provided for determining a unique identifier of a device, the device including a quantum tunnelling barrier unique to the device. The method comprises applying a potential difference across the quantrum tunnelling barrier, the potential difference sufficient to enable tunnelling barrier. The method further comprises measuring an electrical signal, the electrical signal representative of a tunnelling current through the quantrum tunnelling barrier. The method further comprises determining, from the measured electrical signal, a unique identifier for the device. Related apparatuses, systems, computer-readable media and methods are also provided herein.
    Type: Grant
    Filed: March 7, 2023
    Date of Patent: June 4, 2024
    Assignee: Crypto Quantique Limited
    Inventors: Shahram Mossayebi, Patrick Camilleri, Henry Edward William Montagu
  • Patent number: 11996888
    Abstract: Aspects of the subject disclosure may include, for example, causing, by a processing system including a processor, a first optical signal to be conveyed within a first communication device from a first component of the first communication device to a second component of the first communication device via a first fiber including a first hollow core fiber, and causing, by the processing system, the first optical signal to be transmitted from the first communication device to a second communication device via a second fiber. Other embodiments are disclosed.
    Type: Grant
    Filed: July 5, 2022
    Date of Patent: May 28, 2024
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Ricky Perry, Abdellah Tazi
  • Patent number: 11990946
    Abstract: Disclosed are methods, systems and non-transitory computer readable memory for free-space optical (FSO) communications. For instance, a communications network may include FSO optical transceiver terminals located at remote electrically unpowered locations within the communications network. A remote unpowered FSO terminal located at a far-end location receives necessary optical power from a powered base station location (near-end) required for all optical amplification functions for NRZ or RZ format signals within the spectral range of 900 nm to 1480 nm as well as an Ultra Short Pulsed Laser (USPL) centered at 1560 nm at the far-end location. A transmitting node transmits an optical signal identified as a pump signal to a remote location over a free space medium, such as the atmosphere, where the remote location does not have available electrical power for operation of electro-optic components required for transmission and retransmission functions.
    Type: Grant
    Filed: April 3, 2023
    Date of Patent: May 21, 2024
    Assignee: Attochron, LLC
    Inventors: Thomas Malcolm Chaffee, Paul F Szajowski
  • Patent number: 11973534
    Abstract: A method of operating a communication network includes training a neural network and implementing the neural network to determine link availability. Training the neural network includes receiving first images and signal visibility data for first locations for one or more first nodes in the communication network, generating training data based on the first images and the signal visibility data, and training the neural network using the training data to output an attenuation category related to attenuation rate of a link based on a training image and a timestamp for the training image. Implementing the neural network includes receiving second images for second locations for one or more second nodes in the communication network, determining link availability based on the second images and outputs from the neural network, and operating the communication network based on the link availability.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: April 30, 2024
    Assignee: X Development LLC
    Inventors: Varun Puri, Ozgun Bursalioglu Yilmaz
  • Patent number: 11973539
    Abstract: Disclosed herein are optical transceivers with multi-laser modules, as well as related optoelectronic assemblies and methods. In some embodiments, an optical transceiver may include: a first laser and a second laser; an optical output path, wherein an output of the first laser is coupled to the optical output path; and switching circuitry to decouple the output of the first laser from the optical output path and to couple an output of the second laser to the optical output path.
    Type: Grant
    Filed: March 16, 2022
    Date of Patent: April 30, 2024
    Assignee: Intel Corporation
    Inventors: Saeed Fathololoumi, Ling Liao, Quan Tran
  • Patent number: 11962354
    Abstract: A system and method for providing quantum entanglement using a hybrid space-fiber quantum network are described. The hybrid space-fiber quantum network includes a communications hub located proximate to an optical ground station and also includes an aerial entangled particle source, such as an entangled photon source attached to a satellite, drone, aircraft, etc. An atmospheric or free-space channel is used to distribute quantum entanglement between optical ground stations that are separated by geographic distances, via the aerial entangled particle source. Also, fiber optic links are connected to the communications hub located proximate to the optical ground station. The communications hub includes optical switches that enable any of the fiber optic links connected to the communications hub to receive or send distributed quantum entanglement to a remotely located recipient endpoint via the atmospheric or free-space channel.
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: April 16, 2024
    Assignee: Amazon Technologies, Inc.
    Inventors: Mihir Keshav Bhaskar, Antia Lamas Linares, David Sarkis Levonian, Bartholomeus Johannes Machielse, Oskar Jon Painter
  • Patent number: 11956574
    Abstract: An object of the present disclosure is to enable an ONU to acquire ID information of terminal devices even when a network device is connected between the ONU and the terminal devices, and to thereby enable generation of a logical path between the ONU and the OLT. The present disclosure relates to an optical communication network system configured to connect terminal devices and a passive optical network (PON) system via a network device. The PON system includes an optical line terminal and an optical network unit connected using an optical transmission line. The optical network unit is configured to construct a tunnel to the network device, acquire ID information of the terminal devices connected to the network device from the terminal devices via the tunnel, and generates a logical path to the optical line terminal on the optical transmission line using the acquired ID information.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: April 9, 2024
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takuya Abe, Satoshi Narikawa, Tomohiko Ikeda
  • Patent number: 11956016
    Abstract: A hybrid sensing-communication system includes a multicore optical fiber that includes first and second cores, a first communication device optically coupled to a first end of the first core of the multicore optical fiber, a second communication device optically coupled to a second end of the first core of the multicore optical fiber, a first sensing device optically coupled to a first end of the second core of the multicore optical fiber, and a second sensing device optically coupled to a second end of the second core of the multicore optical fiber. The first and second communication devices exclusively exchange communication data along the first core, the first and second sensing devices exclusively exchange sensing data along the second core, and the communication data is different from the sensing data.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: April 9, 2024
    Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Boon Siew Ooi, Islam Ashry, Yuan Mao
  • Patent number: 11956010
    Abstract: The technology generally relates to determining a status of an optical channel between two components. For example, the components may be connected via an optical link including a plurality of optical channels. A first portion of the optical channels may be in use such that a second portion of the optical channels may be redundant channels. The component may include a test generator that transmits and receives a data pattern over each channel. The test generator may determine, based on the received data pattern, a status of each of the channels. If the status of a given channel is a failure status, the component may divert data for the given channel to a redundant channel.
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: April 9, 2024
    Assignee: Google LLC
    Inventors: Zuowei Shen, Biao He, Hong Liu
  • Patent number: 11949458
    Abstract: Apparatuses and methods for optical code-delay reflectometry (OCoDR) are disclosed. An apparatus includes a modulator, a receiver, and control circuitry. The modulator is configured to receive incident electromagnetic (EM) radiation at a substantially fixed frequency generated by one or more EM radiation sources. The incident EM radiation includes continuous-wave EM radiation. The modulator is configured to impart a sequence onto an amplitude, a phase, or both of the incident EM radiation to generate modulated EM radiation. The modulated EM radiation includes continuous-wave EM radiation. The receiver is configured to receive reference EM radiation. The receiver is also configured to receive reflected EM radiation from an optical system responsive to the modulated EM radiation and generate interfered EM radiation responsive to the reference EM radiation and the reflected EM radiation. The receiver is further configured to generate a continuous interferogram responsive to the interfered EM radiation.
    Type: Grant
    Filed: July 20, 2022
    Date of Patent: April 2, 2024
    Assignee: SEQUENT LOGIC, LLC
    Inventors: Ryan Seeley, Rhett H. Redd
  • Patent number: 11942997
    Abstract: Consistent with the present disclosure, a local oscillator is provided in a receiver. The local oscillator laser a first and second mirrors and phase section and heaters are provided adjacent each portion of the laser, such that the temperature and thus the frequency of light output from the local oscillator laser may be tuned. Applying electrical power, such as a current or voltage to the phase section may result in rapid frequency tuning of light output from the local oscillator laser but over a limited frequency range. Temperature changes to the mirror sections, however, may afford frequency tuning over a wider range, but frequency tuning the mirror sections requires more time than that required to tune the phase section. Consistent with the present disclosure, a tuning method and apparatus is provided that optimizes laser tuning by selectively tuning the phase and mirror sections.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: March 26, 2024
    Assignee: Infinera Corporation
    Inventors: Paul N. Freeman, Paul Gavrilovic, Steven Joseph Hand