公开(公告)号：US08891360B2

公开(公告)日：2014-11-18

申请号：US13664129

申请日：2012-10-30

Applicant: Infinera Corp.

Inventor： Satyajeet S. Ahuja ,  Rajan Rao ,  Biao Lu

IPC: H04L12/26 ,  H04L12/721 ,  H04L12/24 ,  H04L12/707 ,  H04L12/703

CPC classification number: H04L41/0654 ,  H04L45/12 ,  H04L45/22 ,  H04L45/28

Abstract: Nodes and methods are disclosed, including, circuitry of a source node in a mesh network retrieving information indicative of network topology; identifying a working path from the source node to a destination node; identifying potential protection segments of the working path, wherein a potential protection segment has at least one disjoint protection path available for the segment; creating a hypothetical network topology comprising the nodes of the working path and hypothetical links between the nodes, wherein the hypothetical links represents potential protection segments identified, and the links are assigned a weight; executing a Shortest Path Algorithm on the hypothetical network topology; identifying as optimal segments the potential protection segments represented by the hypothetical links determined as being in the shortest path by the Shortest Path Algorithm; generating and transmitting a message communicating need for resources in case of failure of the optimal segments.

Abstract translation: 公开了节点和方法，包括网状网络中的源节点的电路检索指示网络拓扑的信息; 识别从源节点到目的地节点的工作路径; 识别所述工作路径的潜在保护段，其中潜在保护段具有可用于所述段的至少一个不相交保护路径; 创建包括所述工作路径的节点和所述节点之间的假想链路的假想网络拓扑，其中所述假设链路表示所标识的潜在保护段，并且所述链路被分配权重; 在假设的网络拓扑上执行最短路径算法; 将由假设链路表示的潜在保护段识别为由最短路径算法确定为最短路径的最佳段; 生成和发送在最佳分段失败的情况下传送资源需求的消息。

公开(公告)号：US20140199067A1

公开(公告)日：2014-07-17

申请号：US13931439

申请日：2013-06-28

Applicant: Infinera Corp.

Inventor： Satyajeet Ahuja ,  Ping Pan ,  Rajan Rao ,  Biao Lu

IPC: H04J14/02

CPC classification number: H04Q11/0066

Abstract: A method, comprises measuring, by circuitry of a computer system, a first bandwidth of data traffic of a transport path over a time period, the transport path passing through a plurality of nodes and conforming to a protocol using a number of time slots to allocate a second bandwidth to the transport path. The method further includes passing a signal, from the computer system to at least one of the nodes of the transport path, the signal including at least one instruction that when executed by circuitry of the at least one node causes a change to the number of time slots allocated to the transport path.

Abstract translation: 一种方法，包括通过计算机系统的电路测量传输路径在一段时间段上的数据业务的第一带宽，所述传输路径通过多个节点并且符合使用多个时隙的协议，以分配 到传输路径的第二带宽。 该方法还包括将来自计算机系统的信号传递到传输路径的至少一个节点，该信号包括当由至少一个节点的电路执行时至少一个时间的改变的至少一个指令的信号 分配给传输路径的时隙。

公开(公告)号：US20250141553A1

公开(公告)日：2025-05-01

申请号：US18932005

申请日：2024-10-30

Applicant: Infinera Corp.

Inventor： Christopher Fludger

IPC: H04B10/272 ,  H04B10/40 ,  H04B10/50

Abstract: Optical networks and methods including a method comprising sending, utilizing a first-hub laser in a first hub node, sub-carriers to a second leaf node; determining, with the second leaf node, laser frequency changes of the first-hub laser based on movement in frequency of at least one received sub-carriers from the first hub node; adjusting a second-leaf laser of the second leaf node to follow the laser frequency changes of the first-hub laser; determining, with the second hub node, laser frequency changes of the second-leaf laser based on movement in frequency of at least one sub-carrier received from the second leaf node, thereby determining the laser frequency changes of the first-hub laser; and adjusting a second-hub laser of the second hub node to follow the laser frequency changes of the second-leaf laser, and thereby to follow the laser frequency changes of the first-hub laser.

公开(公告)号：US20250113123A1

公开(公告)日：2025-04-03

申请号：US18901252

申请日：2024-09-30

Applicant: Infinera Corp.

Inventor： Aryabhata Deshpande ,  Nikhil Kumar Satyarthi ,  Baranidhar Ramanathan

IPC: H04Q11/00 ,  H04J14/02

Abstract: Networks and network elements having an optical power control block, service and power control orchestrator, used to activate, deactivate and perform optical control of channels is disclosed hereby. The invention introduces the idea that, user created service would be activated or deactivated in smaller increments which would help to mitigate power transient on the transmission line. This approach of incremental activation or deactivation would help to correct against undesirable power changes on rest of the optical channels sharing the common optical path. In addition, it provides a way to monitor the health of increment under activation throughout the activation and if necessary optical power thresholds being not met, it can be rolled back. During the process of such an incremental activation or deactivation, the already activated portion of the channel would continue to be optically controlled independently.

公开(公告)号：US20250112722A1

公开(公告)日：2025-04-03

申请号：US18902074

申请日：2024-09-30

Applicant: Infinera Corp.

Inventor： Jonathan Michael Buset ,  Nisar Ahmed ,  Sanjeev Ramachandran ,  Ashok Kunjidhapatham ,  Thomas Gerard ,  Francisco Javier Vaquero Caballero

IPC: H04J14/02

Abstract: A network element is disclosed herein. The network element comprises an ASE source generating ASE noise, a first WSS receiving a first optical signal comprising USPs having an expected power, a second WSS to attenuate ASE noise into ASE passbands and multiplexes the ASE passbands and the first optical signal into a second optical signal having second passbands, a spectral measurement device to detect optical power, and a controller having a processor and memory storing instructions causing the processor to: receive an optical power of the first optical signal from the spectral measurement device; detect a passband failure based on the optical power, the passband failure associated with a failed passband being one of: the USPs; generate the ASE passband; cause the second WSS to multiplex the ASE passband into the second optical signal; and cause the second WSS to activate the ASE passband to replace the failed passband.

公开(公告)号：US20240235685A1

公开(公告)日：2024-07-11

申请号：US18408344

申请日：2024-01-09

Applicant: Infinera Corp.

Inventor： Pierre H. Mertz

IPC: H04B10/40 ,  H04B10/508 ,  H04B10/61

CPC classification number: H04B10/40 ,  H04B10/508 ,  H04B10/6161

Abstract: A disclosed optical system comprises a repeater disposed between a first span and a second span of an optical cable and a node receiving an optical signal from the first span and transmitting a reflection to the first span. The node comprises a transmitter coupled to the first span to transmit the optical signal, transmit pulses having a test subcarrier and a tone, and provide a reference pulse; a receiver to receive the reference pulse and the reflection and passing a filter spectrum; and a DSP to: determine a first dispersion based on a first phase of the reference pulse and on a second phase of the reflection of a first pulse; determine a second dispersion based on a third phase of the reference pulse and a fourth phase of the reflection for a second pulse; and determine a first span seismic pressure based on the first and second dispersion.

公开(公告)号：US20240048245A1

公开(公告)日：2024-02-08

申请号：US17817234

申请日：2022-08-03

Applicant: Infinera Corp.

Inventor： Magnus Olson ,  Amir Rashidinejad ,  Jia Ge

IPC: H04B10/63 ,  H04B10/40 ,  H04W72/04

CPC classification number: H04B10/63 ,  H04B10/40 ,  H04W72/0453

Abstract: Disclosed herein are coherent transceivers and methods of using the same. One exemplary coherent transceiver may be provided with a coherent transmitter operable to transmit a first optical signal and a coherent receiver comprising a processor executing processor-executable code that when executed causes the processor to receive a second optical signal, the second optical signal being a reflection of the first optical signal, analyze the second optical signal to determine a first parameter indicative of a chromatic dispersion of the second optical signal, and determine a second parameter based on the first parameter. The second parameter may be indicative of a distance travelled by the first optical signal and the second optical signal through one or more fiber optic link having a known first location.

公开(公告)号：US20240039703A1

公开(公告)日：2024-02-01

申请号：US18363562

申请日：2023-08-01

Applicant: Infinera Corp.

Inventor： Radhakrishna Valiveti ,  Steven Joseph Hand ,  Rajan Rao

IPC: H04L9/08

CPC classification number: H04L9/0822 ,  H04L9/083

Abstract: Modules for hub network elements and methods are described, including a method comprising (a) generating a partial key indicative of a unique public key associated with a hub network element in a transport network, (b) sending a partial-key message comprising the partial key and an ordered sequence to a particular network element of the ordered sequence, (c) receiving, from the particular network element to which the partial-key message was sent, the partial-key message having been modified by a unique private key associated with the particular network element, (d) repeating steps (b) and (c) for each successive network element in the ordered sequence except for a source network element and a destination network element designated by the ordered sequence, and (e) sending the partial-key message to the destination network element. The transport network comprises a plurality of network elements including the hub network element and a plurality of leaf network elements.

公开(公告)号：US20230361903A1

公开(公告)日：2023-11-09

申请号：US18313836

申请日：2023-05-08

Applicant: Infinera Corp.

Inventor： Steven Joseph Hand ,  Norman Swenson ,  Jeng Rong Yeh

IPC: H04J3/16 ,  H04Q11/00 ,  H04B10/25

CPC classification number: H04J3/1652 ,  H04Q11/0062 ,  H04B10/2589 ,  H04Q2011/0088

Abstract: Disclosed herein are methods and systems for dynamically configuring a muxponder. One exemplary system may be provided with a muxponder module deployed in an optical network, the muxponder having an optical receiver, a first and a second electrical port, a demultiplexer having a built-in digital cross-connect, and a processor accessing a mapping table to assign traffic streams associated with a first service identification code to a first and a second host lane of the first electrical port, traffic streams associated with a second service identification code to a third and a fourth host lane of the second electrical port, and having logic to control the digital cross-connect to route a first and a second traffic stream to the first electrical port based on the first service identification code, and a third and a fourth traffic stream to the second electrical port based on the second service identification code.

公开(公告)号：US20230327795A1

公开(公告)日：2023-10-12

申请号：US18297408

申请日：2023-04-07

Applicant: Infinera Corp.

Inventor： Jonathan M. Buset ,  Lan Liu ,  Nisar Ahmed ,  Thomas Gerard ,  Francisco Javier Vaquero Caballero

IPC: H04J14/02

CPC classification number: H04J14/0212 ,  H04J14/0221

Abstract: A network element is disclosed herein. The network element comprises an add transceiver to generate a first optical signal having one or more optical channel; a line port optically coupled to an optical fiber link; an optical signal inspector operable to sample an optical power of one or more spectral slice of the one or more optical channel; a WSS operable to attenuate the one or more spectral slice of the first optical signal; a processor; and a memory storing instructions that cause the processor to: determine a sample power profile based on the optical power of the one or more spectral slices; generate an attenuation profile based on the sample power profile and a target power profile; and apply the attenuation profile to cause the WSS to shape the one or more spectral slices of the first optical signal into the second optical signal.