DIGITAL NONLINEAR PHASE COMPENSATOR FOR LEGACY SUBMARINE CABLES

    公开(公告)号:US20200328811A1

    公开(公告)日:2020-10-15

    申请号:US16844530

    申请日:2020-04-09

    Applicant: Infinera Corp.

    Abstract: A method and system are herein disclosed. A coherent optical receiver receives a first optical data carrier signal at a first instant of time and a second optical data carrier signal at a second instant of time, generates at least four first data streams from the first optical data carrier signal and at least four second data streams from the second optical data carrier signal; and circuitry calculates a first aggregate power of the first data streams and a second aggregate power of the second data streams; applies an adjustable temporal low pass filter to the first aggregate power and the second aggregate power resulting in a compensation power, the adjustable temporal low pass filter adjusted to achieve a performance metric; and phase-rotates the first data streams and the second data streams proportional to the compensation power.

    Systems and methods for decoupled optical network link traversal

    公开(公告)号:US10694271B2

    公开(公告)日:2020-06-23

    申请号:US16136810

    申请日:2018-09-20

    Applicant: Infinera Corp.

    Abstract: Methods and systems are disclosed for optical network link traversal, including a method comprising the steps of receiving, by a traverser software module for an optical network, from a first node in a network link defining a path in the optical network, one or more node sets indicative of one or more of a second node also in the network link; determining, with the traverser software module, an order of traversal of the one or more node sets; traversing the network link using the determined order of traversal; communicating, by the traverser software module, information with a feature manager software module for a first software feature, the first software feature configured to perform a function specific to a specific node; and triggering, by the feature manager software module, the first software feature to execute one or more computer executable instruction based on information from the traverser software module.

    Intelligent optical restoration in integrated multi-layer networks

    公开(公告)号:US10587500B2

    公开(公告)日:2020-03-10

    申请号:US15482159

    申请日:2017-04-07

    Applicant: Infinera Corp.

    Abstract: Memory devices, methods and systems are described in which a non-transitory memory device stores instructions that, when executed by a processor, cause the processor to: receive, via an input component, at least one message from a network element in a multi-layer network comprising information indicative of at least one failure of a working path; determine based at least in part on information indicative of a data transport path coincident with the working path in a second layer in the network different from the first layer, an alternate path in the first layer for transmission of the data through the multi-layer network; and transmit, via an output component, at least one signal comprising configuration instructions to at least one line module, the configuration instructions directing the line module to switch and transmit the data using the alternate path.

    Method and system to prevent false restoration and protection in optical networks

    公开(公告)号:US20190007131A1

    公开(公告)日:2019-01-03

    申请号:US15999201

    申请日:2018-08-17

    Applicant: Infinera Corp.

    Abstract: Systems and methods are described in which circuitry of a first controller of a first node receives a first signal indicating an optical loss of signal within the first path. Circuitry of a second controller of the first node on the first path within a transport network generates a second signal indicating a failure within the first path. The first controller accessing a network topology database determines that restoration of the first path would be ineffective due to there being no alternate path, and signals a second node downstream in the first path with the second signal indicating the failure within the first path, and a third signal indicating that restoration of the first path would be ineffective due to there being no alternate path.

    Stacked cage optical module heat relay system

    公开(公告)号:US09910231B2

    公开(公告)日:2018-03-06

    申请号:US14987142

    申请日:2016-01-04

    Applicant: Infinera Corp.

    CPC classification number: G02B6/4269 G02B6/4278 H04B10/801

    Abstract: An apparatus comprising a cage for pluggable optical modules including a bay having a first port stacked with a second port, the bay having an opening between the first and second port; a heat collector module in the opening comprising a first contact plate adjacent to the first port bottom and provided in the first port and configured to contact a first optical module in the first port, a second contact plate adjacent to the second port top and provided in the second port and configured to contact a second optical module insertable in the second port, a cold plate between the first and second contact plates, compressible thermal material layers between the contact plates and the cold plate; and a heat pipe having a first portion in thermal contact with the cold plate and a second portion extending beyond the stacked cage and in thermal contact with a radiator.

Patent Agency Ranking