Optical interconnects for a programmable virtualized self-optimizing signal processor

    公开(公告)号:US20230412277A1

    公开(公告)日:2023-12-21

    申请号:US18033157

    申请日:2021-09-30

    申请人: Ciena Corporation

    摘要: An electrical circuit package includes an electrical processing engine (10) circuit configured to perform data processing; and one or more co-packaged coherent optical Input/Output (IO) modules (20) interconnected to the electrical processing engine (10) circuit, wherein the electrical processing engine (10) circuit is configured to interface electrical data including an optical signal waveform representation to each of the one or more co-packaged coherent optical IO modules, and wherein the one or more co-packaged coherent optical IO modules (20) are configured to coherently transmit and receive optical data based on the optical signal waveform representation. The electrical processing engine (10) circuit can be configured to perform optical modulation and demodulation based on the optical signal waveform representation, in addition to the data processing.

    Crosspoint Switch with µLED IO Ports and Imaging Fiber Cables

    公开(公告)号:US20230232138A1

    公开(公告)日:2023-07-20

    申请号:US18099473

    申请日:2023-01-20

    申请人: Ciena Corporation

    IPC分类号: H04Q11/00 G02B6/42 G02B6/43

    摘要: Systems and methods include an optical switch system which provides a combination of µLED arrays, PDs, imaging fiber cables, and crosspoint switch on a single chip. The system includes one or more input ports with each inputport configured to connect to an inputfiber bundle. The system additionally includes one or more output ports with each output port configured to connect to an outputfiber cable, wherein each of the inputfiber bundle and the outputfiber cable include a plurality of fiber cores. An electrical crosspoint switch is connected to the one or more input ports and the one or more output ports, wherein the electrical crosspoint switch is configured to connect a given input port to a corresponding output port, including all signals in the input fiber cable to the corresponding output fiber cable.

    Express mesh intersatellite optical coherent networking

    公开(公告)号:US20230047613A1

    公开(公告)日:2023-02-16

    申请号:US17401416

    申请日:2021-08-13

    申请人: Ciena Corporation

    IPC分类号: H04B10/118 H04B10/27

    摘要: An express mesh satellite network includes a plurality of satellites arranged in a constellation, each including a plurality of coherent optical modems, wherein the plurality of satellites are configured in a topology based on traffic sources and sinks on the ground where the topology includes express links where satellites are directly connected in space by the coherent optical modems based on the traffic sources and sinks. The plurality of satellites are configured to become a node in the topology when in an associated affinity area having a ground link or requiring a relay function.

    Extending the optical spectrum of an optical network

    公开(公告)号:US11553259B2

    公开(公告)日:2023-01-10

    申请号:US17543679

    申请日:2021-12-06

    申请人: Ciena Corporation

    摘要: Systems and methods include, for operation on an optical fiber in an optical network with the optical fiber having extended optical spectrum that include a plurality of bands including at least the C-band and one or more additional bands, segmenting the plurality of bands by distance based on different transmission specifications for the plurality of bands based on fiber types and amplifiers used for corresponding bands; and placing one or more channels on the optical fiber in a corresponding band of the plurality of bands based on a distance between nodes associated with each of the one or more channels. The segmenting is based on a metric that is a function of fiber type of the optical fiber and amplifier performance for amplifiers used in the plurality of bands.

    Packet order recovery in a programmable edge switch in a data center network

    公开(公告)号:US11451494B2

    公开(公告)日:2022-09-20

    申请号:US16565541

    申请日:2019-09-10

    申请人: Ciena Corporation

    摘要: Systems and methods include receiving incoming packets associated with flows in a data center network where the flows are forwarded on a per-packet basis; maintaining a state of each of the flows and of received incoming packets; and dequeuing the received incoming packets based on one or more packet dequeue conditions and the state. The edge switch can be one of a Top of Rack switch and a Network Interface Card (NIC) communicatively coupled to a corresponding server. The received incoming packets can utilize a transport protocol including any of Transmission Control Protocol (TCP), Xpress Transport Protocol (XTP), and Stream Control Transmission Protocol (SCTP).

    Flat, highly connected optical network for data center switch connectivity

    公开(公告)号:US11388492B2

    公开(公告)日:2022-07-12

    申请号:US17090274

    申请日:2020-11-05

    申请人: Ciena Corporation

    IPC分类号: H04Q11/00 H04B10/25

    摘要: A flat data center network includes a plurality of switches each including a first plurality of server facing ports connected to a first set of servers, and a plurality of network facing ports connected to other switches of the plurality of switches, wherein the plurality of switches are interconnected via corresponding network facing ports in a semi-structured random network architecture that enables additional servers to be added to the flat data center network during operation while maintaining random interconnect.

    Systems and methods for increasing granularity and fan-out of electric circuits with co-packaged optical interfaces

    公开(公告)号:US20210176542A1

    公开(公告)日:2021-06-10

    申请号:US16704442

    申请日:2019-12-05

    申请人: Ciena Corporation

    IPC分类号: H04Q11/00 H04J14/02 H04B10/80

    摘要: Systems and methods increase the fan-out (radix) of optical connections that are co-packaged with electric circuits, e.g., Application-Specific Integrated Circuits (ASICs). Optical or electrical techniques are presented to break out multiple data streams from a Photonic Integrated Circuit (PIC) integrated with an ASIC. This provides the ability to increase the I/O capability (radix) of an ASIC, allowing the ASIC to connect to a larger number of devices (e.g., servers). A cross-connect system includes one or more cross-connect devices optically interconnected to 1) a plurality of switches with each switch connected to one or more subtending servers, and 2) a plurality of switch circuits having Photonic Integrated Circuits (PICs) integrated therewith, each of the one or more cross-connect devices is configured to provide fan-out of the plurality of switches between the plurality of switch circuits to increase a number of the subtending servers.

    Systems and methods for increasing granularity and fan-out of electric circuits with co-packaged optical interfaces

    公开(公告)号:US11026001B1

    公开(公告)日:2021-06-01

    申请号:US16704442

    申请日:2019-12-05

    申请人: Ciena Corporation

    摘要: Systems and methods increase the fan-out (radix) of optical connections that are co-packaged with electric circuits, e.g., Application-Specific Integrated Circuits (ASICs). Optical or electrical techniques are presented to break out multiple data streams from a Photonic Integrated Circuit (PIC) integrated with an ASIC. This provides the ability to increase the I/O capability (radix) of an ASIC, allowing the ASIC to connect to a larger number of devices (e.g., servers). A cross-connect system includes one or more cross-connect devices optically interconnected to 1) a plurality of switches with each switch connected to one or more subtending servers, and 2) a plurality of switch circuits having Photonic Integrated Circuits (PICs) integrated therewith, each of the one or more cross-connect devices is configured to provide fan-out of the plurality of switches between the plurality of switch circuits to increase a number of the subtending servers.

    Routing tables for forwarding packets between switches in a data center network

    公开(公告)号:US20210119938A1

    公开(公告)日:2021-04-22

    申请号:US16656783

    申请日:2019-10-18

    申请人: Ciena Corporation

    摘要: Systems and methods for building routing tables for use in a data center network are provided. In one embodiment, a switch is arranged in a network environment having a plurality of switches. The switch includes a plurality of inward-directed ports configured for direct connection with a plurality of servers and a plurality of outward-directed ports configured for direct connection with a subset of the plurality of switches. The switch also includes a processor configured to generate a Routing Table (RT) in an RT build process and to create a Forwarding Table (FT) for forwarding packets when the RT build process is complete. The outward-directed ports are configured to forward packets to one or more switches of the subset of switches according to the RT. The FT includes at least a Shortest Path (SP) route and one or more Off-Shortest Path (OSP) routes for forwarding the packets to the one or more switches.