公开(公告)号：US20250067931A1

公开(公告)日：2025-02-27

申请号：US18808547

申请日：2024-08-19

Applicant: Ciena Corporation

Inventor： Marie-Josee Picard

IPC: G02B6/124 ,  G02B6/02 ,  G02B6/12 ,  G02B6/126

Abstract: A larger-mode region is configured to propagate at least a first optical mode characterized by a first mode field diameter at a first position along a propagation axis of the larger-mode region. A smaller-mode region comprises one core structure embedded within the cladding positioned to couple optical modes guided by the smaller-mode region characterized by a second mode field diameter smaller than the first mode field diameter to the first optical mode over a coupling region within the cladding in which the larger-mode region is in proximity to the smaller-mode region. Stress-modifying formations are arranged within or in proximity to one or both of the larger-mode region or the coupling region, and modify a stress within a portion of the cladding along a first transverse axis with respect to a stress within the portion of the cladding along a second transverse axis.

公开(公告)号：US12238000B2

公开(公告)日：2025-02-25

申请号：US18342665

申请日：2023-06-27

Applicant: Ciena Corporation

Inventor： Sami Boutros

IPC: H04L45/00 ,  H04L45/02 ,  H04L45/24 ,  H04L61/58 ,  H04L67/568

Abstract: A method, implemented for a first component of a network element, includes steps of, responsive to one or more routing state updates for one or more routes, updating a route entry for the one or more routes in an update library that communicates with a cache database; and exchanging the routing state updates with a second component of the network element, wherein the exchanging of the routing state updates is bulked where the second component is configured to read all of the exchanged routing state updates. The exchanging is performed instead of providing a routing state message for each of the one or more routing state updates for the same route state.

公开(公告)号：US12236085B2

公开(公告)日：2025-02-25

申请号：US18168614

申请日：2023-02-14

Applicant: CIENA CORPORATION

Inventor： David Miedema ,  Hadiuzzaman Dewan

IPC: G06F3/06

Abstract: Aspects of the subject disclosure may include, for example, identifying a plurality of parameters for managing data in relation to an execution of an application, monitoring access to the data, determining, based on the monitoring, that first data that is located in a memory of the processing system has not been accessed in an amount of time that is greater than a first threshold, resulting in a first determination, determining, based on the plurality of parameters and the first determination, that the first data is a candidate for transfer to a persistent storage device, resulting in a second determination, and based on the second determination, causing the first data to be transferred to the persistent storage device. Other embodiments are disclosed.

公开(公告)号：US20250038875A1

公开(公告)日：2025-01-30

申请号：US18549666

申请日：2022-01-31

Applicant: Ciena Corporation

Inventor： Paul Chedore ,  Jean-Luc Archambault ,  David W. Boertjes

IPC: H04J14/02 ,  G02B6/293 ,  H04Q11/00

Abstract: An integrated C+L band Reconfigurable Optical Add/Drop Multiplexer, ROADM, node (10B, 10C, 10D) supporting integrated C and L band functionality includes one or more ROADM modules (20CL, 20CLQ) each including a demultiplexer Wavelength Selective Switch, WSS, (102) having a common receive input and a plurality of output ports, a multiplexer WSS (104) having a plurality of input ports and a common transmit output, wherein, each of the demultiplexer WSS (102) and the multiplexer WSS support (104) both the C band and L band in an integrated manner, a plurality of amplifiers (106, 108, 11, 112, 114, 116) that each connect to one of the demultiplexer WSS (102) and the multiplexer WSS (104), and line ports including a transmit port (50T) and a receive port (50R) that connect to the plurality of amplifiers (106, 108, 110, 112, 114, 116).

公开(公告)号：US12209929B2

公开(公告)日：2025-01-28

申请号：US17944517

申请日：2022-09-14

Applicant: Ciena Corporation

Inventor： Alexandre D. Simard ,  Michel Poulin ,  Christine Latrasse

IPC: G01M11/00 ,  G02B6/12 ,  G02B6/122

Abstract: An integrated circuit comprises: at least one photonic layer that includes one or more optical waveguides; a first optical coupler that couples at least a first optical mode outside of the photonic layer to a first waveguide in the photonic layer; a photonic device that includes one or more ports in the photonic layer; a first multi-port optical coupler that includes three or more ports in the photonic layer, including a first port optically coupled to the first optical coupler, a second port optically coupled to a first port of the photonic device, and a third port optically coupled to a first optical reflector configured to send substantially all optical power emitted from the third port of the first multi-port optical coupler back to the third port of the first multi-port optical coupler.

公开(公告)号：US20250023809A1

公开(公告)日：2025-01-16

申请号：US18456731

申请日：2023-08-28

Applicant: Ciena Corporation

Inventor： Bhupendra Yadav ,  Prabhu Vaithilingam ,  Gerald Smallegange ,  Alwyn Joy George

IPC: H04L45/02 ,  H04L12/46 ,  H04L45/12

Abstract: Systems and methods for zero touch configuration for a mesh of nodes using Segment Routing Flexible Algorithm define a Flex Algo Definition (FAD) of an auto-mesh plane. A method, in one embodiment, includes, responsive to the FAD, providing an advertisement of a Prefix Segment Identifier (SID) for a node in the auto-mesh plane; and including a flag in the advertisement designating whether the node is a destination node or a non-destination node in the auto-mesh plane. The destination node is one which requires transport connectivity to all other destination nodes in the auto-mesh plane, and the non-destination node is one used for reachability to all the destination nodes.

公开(公告)号：US20250016046A1

公开(公告)日：2025-01-09

申请号：US18347958

申请日：2023-07-06

Applicant: Ciena Corporation

Inventor： David Bainbridge

IPC: H04L41/0806 ,  H04L47/122

Abstract: Systems, methods and apparatuses provide a disaggregated network operating system in which control plane and data plane components of the network operating system are distributed across a network controller and network elements. An information model describes a network element and identifies packet processing plug-ins executable by general purpose processors of the network element. The network controller uses the model to generate a packet pipeline program for execution by a programmable packet pipeline of the network element, and generates a list of packet processing plug-ins for handling offload conditions. The network controller transmits the packet pipeline program and list of packet processing plug-ins to the network element. The network element installs the packet pipeline program to the programmable packet pipeline and downloads the listed packet processing plug-ins. When the pipeline detects an offload condition, the pipeline forwards the network packet to the packet processing plug-in associated with the offload condition.

公开(公告)号：US12191994B2

公开(公告)日：2025-01-07

申请号：US17633704

申请日：2020-09-30

Applicant: Ciena Corporation

Inventor： Andrew D. Shiner ,  Shahab Oveis Gharan ,  Michael Hubbard ,  Kim B. Roberts

IPC: H04L1/00 ,  H04W24/08

Abstract: A system is configured to measure (602) a forward error correction (FEC) decoding property (216) associated with applying FEC decoding (214) to FEC-encoded bits or symbols at a receiver device (202) deployed in a communication network (100). The system is configured to provide (606) an assessment of operating conditions of the receiver device based on the FEC decoding property. The FEC decoding property comprises, for example, a distribution of a number of iterations of a FEC decoding operation applied to a plurality of FEC blocks processed within a period of time. In some examples, the FEC decoding property comprises any one of heat, temperature, current, voltage, active clock cycles, idle clock cycles, activity of parallel engines, activity of pipeline stages, and input or output buffer fill level of the FEC decoding. The assessment is based, for example, on a comparison between the FEC decoding property and reference FEC data (218).

公开(公告)号：US20250008410A1

公开(公告)日：2025-01-02

申请号：US18342410

申请日：2023-06-27

Applicant: Ciena Corporation

Inventor： Petar Djukic ,  Yeshu Wu ,  Todd Morris

IPC: H04W40/24

Abstract: Systems and methods are provided for placement of User Plane Functions (UPFs) on one or more nodes and assigning Distributed Units (DUs) to the UPF-hosting nodes of a 5G network slice. A method, according to one implementation, includes the step of obtaining a network topology map portraying a network that includes at least a plurality of components of a Radio Access Network (RAN) and a plurality of eligible nodes capable of connecting the components to the Internet. The method also includes the step of creating a tree graph from the network topology map. The tree graph includes a plurality of branches, where each branch represents the lowest cost path between a respective eligible node and a selected one of the plurality of components. In addition, the method includes selecting a group of the eligible nodes that collectively are capable of connecting the plurality of components to the Internet.

公开(公告)号：US20250007606A1

公开(公告)日：2025-01-02

申请号：US18342610

申请日：2023-06-27

Applicant: Ciena Corporation

Inventor： Eric Maniloff ,  Christian Bourget ,  Hoang-Bao Le Van ,  Marc Veilleux ,  Steven Clarke

IPC: H04B10/079 ,  H04L1/00

Abstract: Signal-to-noise ratio (SNR)-based bit error ratio (BER) calculations for reporting beyond a forward error correction (FEC) threshold include measuring signal-to-noise ratio (SNR) of a first signal; extrapolating the SNR of a first signal to determine an SNR of a second signal; and determining a pre-FEC bit error rate (BER) for the second signal based on the determined SNR of the second signal. The process can further include reporting the determined pre-FEC BER. The measuring and extrapolating can be used when the second signal is beyond the FEC threshold.