OPTRONIC TRANSCEIVER MODULE WITH INTEGRATED PROTECTION

    公开(公告)号:US20220416885A1

    公开(公告)日:2022-12-29

    申请号:US17849479

    申请日:2022-06-24

    申请人: Orange

    发明人: Philippe Chanclou

    摘要: An optronic transceiver module capable of implementing an optical bidirectional communication of the point to point type via at least one main optical fibre is disclosed. The optronic transceiver module includes a first optical module for supervising an uplink signal received via the main optical fibre delivering a first supervision result, a first optical module for switching the bidirectional communication via the main optical fibre to a bidirectional communication via a backup optical fibre, and vice versa, the first optical switching module being controlled by the first optical supervision module depending on the first supervision result delivered.

    Protection switching method and node

    公开(公告)号:US11251863B2

    公开(公告)日:2022-02-15

    申请号:US16925687

    申请日:2020-07-10

    摘要: The present disclosure discloses a protection switching method and a node. The method can include: receiving, by an intermediate node, a first protection switching request message sent by an upstream neighboring node, where the first protection switching request message is used to request to activate a first protection path, and the intermediate node is a node on the first protection path; determining, by the intermediate node, that the first protection path needs to occupy N1 timeslots, and selecting N1 timeslots for the first protection path from N2 available timeslots in a preset order; and sending, by the intermediate node, a second protection switching request message to the downstream neighboring node, where the second protection switching request message is used to request the downstream neighboring node to complete a cross-connection, on the first protection path, between the downstream neighboring node and the intermediate node based on the first group of timeslots.

    Control plane redundancy for optical networks

    公开(公告)号:US11101883B1

    公开(公告)日:2021-08-24

    申请号:US16835136

    申请日:2020-03-30

    摘要: In an optical communications network, the supervisory control signal is duplicating at the OSI layer 2 or layer 3 level to generate a primary supervisory control signal and a secondary supervisory control signal. Access to the primary supervisory control signal is enabled at a network interface of a network device. In response to detecting a failure of the optical communications network or the device, access to the primary supervisory control signal is disabled and access to the secondary supervisory control signal is enabled.

    Protection switching method and node

    公开(公告)号:US10993005B2

    公开(公告)日:2021-04-27

    申请号:US16861659

    申请日:2020-04-29

    发明人: Haomian Zheng

    摘要: A protection switching method, including sending, by a first end node, a first protection switching request message to an intermediate node in response to a fault occurring on a working path between the first end node and a second end node, wherein a protection path of the working path comprises the first end node, the second end node, and at least one intermediate node, receiving, by the first end node, a second protection switching request message from the intermediate node, and switching service data to the protection path for transmission in response to receiving the second protection switching request message, where one overhead frame of each of the first and second protection switching request messages has at least two overhead information groups, and each of the at least two overhead information groups comprises a request type field, a request signal identifier field, and a bridge flag field.

    System architecture for power control in an optical transmission line

    公开(公告)号:US10735092B2

    公开(公告)日:2020-08-04

    申请号:US16228468

    申请日:2018-12-20

    申请人: Infinera Corp.

    摘要: An optical network is described that has a first ROADM node, a second ROADM node, and an optical transmission line establishing optical communication between the first ROADM node and the second ROADM node. The optical transmission line including an in-line amplifier node having a total input power and a total output power. The in-line amplifier node has a first monitoring tool configured to measure input optical power of the in-line amplifier node, and a second monitoring tool configured to measure output optical power of the in-line amplifier node. A software defined L0 network controller has circuitry configured to receive the optical power measured by the first and second monitoring tools from the in-line amplifier node, and to configure at least one of a gain and a gain tilt of the in-line amplifier node.

    Optical branching unit
    106.
    发明授权

    公开(公告)号:US10707957B2

    公开(公告)日:2020-07-07

    申请号:US16573697

    申请日:2019-09-17

    摘要: An optical communications apparatus is configured to be connected to first, second, and third optical cables. In a branch connecting configuration, a branch optical path is enabled so that (i) signal wavelengths received over the first cable are routed to the third cable and (ii) signal wavelengths received over the third cable are routed to the second cable. The signal wavelengths received over the third cable include at least one of the signal wavelengths routed from the first cable to the third cable and returned via a loop connection at a distal portion of the third cable. In a bypass configuration, a connection via the branch optical path to the distal portion of the third cable is bypassed so that the signal wavelengths received over the first cable are routed to the second cable without first being routed through the distal portion of the third cable.

    Intelligence-defined optical tunnel network system and network system control method

    公开(公告)号:US10666378B2

    公开(公告)日:2020-05-26

    申请号:US16399222

    申请日:2019-04-30

    摘要: An intelligence-defined optical tunnel network system includes a first pod and a controller. The first pod includes multiple Optical Add-Drop Sub-systems (OADS) configured to transmit data between corresponding servers through ToR switches. First transmission modules of the OADSs are connected to each other in ring to form the first transmission ring. Second transmission modules of the OADSs are connected to each other in ring to form the second transmission ring. The controller is configured to set the ToR switches in order to build the optical tunnel from a first OADS to a second OADS on the second transmission ring by the second transmission modules if a disconnection occurs to the optical tunnel from the first OADS to the second OADS on the first transmission ring.

    Optical path fault recovery
    110.
    发明授权

    公开(公告)号:US10469161B2

    公开(公告)日:2019-11-05

    申请号:US15636401

    申请日:2017-06-28

    摘要: The embodiments disclosed herein provide fast recovery of a network signal path by, in the event of a failure or unacceptable degradation in a signal in the original network path, diverting the optical signal passing through the network to a preselected bypass optical path which is maintained in a warm or operational state. The optical elements on the bypass optical path are available network resources which may, during part or all of the time the bypass path is designated for a node in the primary optical path, be in use to transmit other optical signals in the network. By maintaining the resources in the designated bypass path in a warm or operating state, fast rerouting and recovery of an interrupted signal is possible.