公开(公告)号：US11942999B2

公开(公告)日：2024-03-26

申请号：US17992208

申请日：2022-11-22

Applicant: Google LLC

Inventor： Massimiliano Salsi ,  Shuang Yin

IPC: H02G15/14 ,  G02B6/42 ,  G02B6/44 ,  H04B10/035 ,  H04B10/80

CPC classification number: H04B10/80 ,  G02B6/4278 ,  G02B6/4427 ,  H02G15/14 ,  H04B10/035

Abstract: In an optical network having a terrestrial terminal and an open cable interface (OCI) connecting a submarine cable to a terrestrial cable, the OCI may include a filter positioned on an optical path between the terrestrial cable and the submarine cable and configured to pass first communication signals of a first frequency band, and filter out secondary signals of a second frequency band that does not overlap with the first frequency band. The secondary signals may be looped back to the terrestrial terminal. The terrestrial terminal may detect the looped back secondary signals, and in response, determine the presence of the OCI and that the supervisory signals were rerouted by the OCI.

公开(公告)号：US11863332B2

公开(公告)日：2024-01-02

申请号：US18099494

申请日：2023-01-20

Applicant: Level 3 Communications, LLC

Inventor： Steven E. Drake ,  Morgan M. Pofahl

IPC: H04L1/24 ,  H04J3/14 ,  H04B10/035 ,  G01R31/317

CPC classification number: H04L1/243 ,  G01R31/31716 ,  H04B10/035 ,  H04J3/14

Abstract: Systems, methods, and storage media for detecting a security intrusion of a network device are disclosed. Exemplary implementations may include a method involving, in the network device including a processor, monitor a light signal associated with a security enabled port of the network device; and in response to detecting a change in the light signal, initiate a security alert.

公开(公告)号：US20230170990A1

公开(公告)日：2023-06-01

申请号：US17921569

申请日：2020-05-12

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Rintaro HARADA ,  Hirotaka UJIKAWA ,  Shin KANEKO ,  Jun TERADA

IPC: H04B10/035 ,  H04B10/079

CPC classification number: H04B10/035 ,  H04B10/0795

Abstract: Time taken for resuming communication in a protection scheme using a backup path in an optical communication system including a master station device and a plurality of slave station devices is decreased. The plurality of slave station devices are connected in parallel to a looped path. A communication path between the master station device and each of the slave station device includes a normal path and a backup path. The master station device performs communication control processing for each of the slave station device based on RTT. A first slave station device is a slave station device with which communication through the normal path has become impossible. First backup path RTT of the first slave station device is calculated based on first normal path RTT of the first slave station device, first partial RTT between the master station device and the looped path, and loop propagation time necessary for one trip through the looped path. The communication control processing for the first slave station device is resumed based on the calculated first backup path RTT without measurement of the first backup path RTT when the first slave station device is sensed.

公开(公告)号：US09882634B1

公开(公告)日：2018-01-30

申请号：US15270348

申请日：2016-09-20

Applicant: Ciena Corporation

Inventor： Choudhury A. Al Sayeed ,  Marc Veilleux

IPC: H04B10/035 ,  H04B10/50 ,  H04B10/66 ,  H04B10/40

CPC classification number: H04B10/035 ,  H04B10/077 ,  H04B10/27 ,  H04B10/40 ,  H04B10/50 ,  H04B10/66 ,  H04L41/0659 ,  H04L43/0811 ,  H04L43/50

Abstract: Systems and methods for connection validation between a pair of mated transceivers implemented in a network element include, responsive to a request for connection validation at a first transceiver of the pair of mated transceivers, performing a first optical loopback test through the first transceiver with a unique trace identifier; responsive to a successful first optical loopback test, providing the unique trace identifier to a second transceiver of the mated transceivers with a request for a second optical loopback test; performing the second optical loopback test through the second transceiver with the unique trace identifier; and, responsive to a successful second optical loopback test, providing the unique trace identifier back to the first transceiver from the second transceiver.

公开(公告)号：US09391698B1

公开(公告)日：2016-07-12

申请号：US14061503

申请日：2013-10-23

Applicant: Google Inc.

Inventor： Ryohei Urata ,  Nathan Folkner ,  Zuowei Shen

IPC: H04B10/08 ,  H04B10/00 ,  H04B10/077 ,  H04B10/035 ,  H04B10/073

CPC classification number: H04B10/0779 ,  H04B10/035 ,  H04B10/073 ,  H04B10/0799 ,  H04B10/40 ,  H04B2210/08

Abstract: Systems and methods for achieving eye safety of an optical transceiver are provided. An optical module can be configured to output a first optical signal. A first photodetector can be configured to output a signal indicative of a presence or absence of a second optical signal. A controller can be coupled to the optical module and the first photodetector and can be configured to control the output of the optical module. In response to a determination that an output of the first photodetector indicates the second optical signal is absent, the controller can control the optical module to output the first signal at a decreased average optical power. In response to a determination that an output of the first photodetector indicates the second optical signal is present, the controller can control the optical module to output the first signal at an increased average optical power.

Abstract translation: 提供了用于实现光收发器的眼睛安全的系统和方法。 光学模块可以被配置为输出第一光信号。 第一光电检测器可以被配置为输出指示第二光信号的存在或不存在的信号。 控制器可以耦合到光学模块和第一光电检测器，并且可以被配置为控制光学模块的输出。 响应于确定第一光电检测器的输出指示第二光信号不存在，控制器可以控制光模块以平均光功率降低输出第一信号。 响应于第一光电检测器的输出表示第二光信号的确定，控制器可以控制光模块以增加的平均光功率输出第一信号。

公开(公告)号：US09236958B2

公开(公告)日：2016-01-12

申请号：US13959166

申请日：2013-08-05

Applicant: Skorpios Technologies, Inc.

Inventor： Robert J. Stone ,  Stephen B. Krasulick

IPC: G01R31/00 ,  G01R31/3187 ,  H04B17/00 ,  H04B10/073

CPC classification number: G01J1/08 ,  G01J1/42 ,  G01J2001/083 ,  G01J2001/4247 ,  G01R31/3187 ,  H04B10/035 ,  H04B10/0731 ,  H04B10/0779 ,  H04B17/0082

Abstract: A photonics system includes a transmit photonics module and a receive photonics module. The photonics system also includes a transmit waveguide coupled to the transmit photonics module, a first optical switch integrated with the transmit waveguide, and a diagnostics waveguide optically coupled to the first optical switch. The photonics system further includes a receive waveguide coupled to the receive photonics module and a second optical switch integrated with the receive waveguide and optically coupled to the diagnostics waveguide.

Abstract translation: 光子系统包括发射光子模块和接收光子模块。 光子系统还包括耦合到发射光子模块的发射波导，与发射波导集成的第一光开关，以及光耦合到第一光开关的诊断波导。 光子系统还包括耦合到接收光子模块的接收波导和与接收波导集成并与光学耦合到诊断波导的第二光开关。

公开(公告)号：US09219542B2

公开(公告)日：2015-12-22

申请号：US14324988

申请日：2014-07-07

Applicant: Cooper Technologies Company

Inventor： Maoz Ohad ,  Andrei Weintraub

IPC: H04B10/08 ,  H04B10/035 ,  H05B37/02 ,  H04B10/80 ,  B64F1/20

CPC classification number: H04B10/035 ,  B64F1/20 ,  H04B10/807 ,  H05B37/0263

Abstract: Control and monitoring of airfield lighting from a control tower and other maintenance/supervisory locations uses double loop self healing fiber optic communications circuits to enhances speed of operation even with large and complex airfield lighting system requirements, and significantly increased reliability and operating lifetime thereof. A plurality of local light control and monitoring groups are used, wherein each group has at least one fiber optic communications concentrator that independently communicates with light controllers within the group and the remote supervisory control and monitoring systems in the control tower and other locations. This allows faster control response of the lamps in each of the airfield light fixtures, and monitoring concentration of operational data within each group. Each of the at least one fiber optic concentrators is optically coupled to double loop self healing fiber optic communications backbone circuits coupled to main and backup computer supervisory control systems for redundancy purposes.

Abstract translation: 控制和监控来自控制塔和其他维护/监控位置的机场照明使用双回路自愈光纤通信电路，即使在大型和复杂的机场照明系统要求下也能提高运行速度，并显着增加其可靠性和使用寿命。 使用多个本地光控制和监视组，其中每个组具有至少一个光纤通信集中器，其独立地与组内的光控制器以及控制塔和其他位置中的远程监控和监视系统通信。 这允许在每个机场照明装置中的灯的控制响应更快，并且监视每组内的操作数据的集中。 所述至少一个光纤聚光器中的每一个光学耦合到耦合到主计算机和备用计算机监视控制系统的双回路自愈光纤通信主干电路，用于冗余目的。

公开(公告)号：US09118414B2

公开(公告)日：2015-08-25

申请号：US13591406

申请日：2012-08-22

Applicant: Jeffrey Kendall Storey ,  John F. Waters, Jr. ,  Andrew Dugan ,  Salvador Paredes ,  Gary Ratterree

Inventor： Jeffrey Kendall Storey ,  John F. Waters, Jr. ,  Andrew Dugan ,  Salvador Paredes ,  Gary Ratterree

IPC: H04B10/08 ,  H04B10/077

CPC classification number: H04B10/0791 ,  G02B6/29361 ,  H04B10/035 ,  H04B10/0773 ,  H04J14/02 ,  H04Q11/0062 ,  H04Q11/0066 ,  H04Q2011/0081 ,  H04Q2011/0083

Abstract: Systems, methods, and devices are disclosed for monitoring optical communications between a managed location and a remote location. In particular, an optical signal is transmitted over an optical fiber and passed-through a test device. A portion of the optical signal is filtered from the original optical signal and passed to a monitoring unit. The monitoring unit may instruct one or more switches in the test device to loop the optical signal back toward the managed location. Subsequently, testing and monitoring may be performed at the managed location. The device may provide a test output or may transmit the information to the managed location.

Abstract translation: 公开了用于监视被管理位置和远程位置之间的光通信的系统，方法和设备。 特别地，光信号通过光纤传输并通过测试装置。 光信号的一部分从原始光信号中滤波并传送到监视单元。 监视单元可以指示测试设备中的一个或多个开关将光信号回送到被管理位置。 随后，可以在被管理的位置执行测试和监视。 设备可以提供测试输出或者可以将信息发送到被管理的位置。

公开(公告)号：US20120189298A1

公开(公告)日：2012-07-26

申请号：US13270843

申请日：2011-10-11

Applicant: Maoz Ohad ,  Andrei Weintraub

Inventor： Maoz Ohad ,  Andrei Weintraub

IPC: H04B10/08

CPC classification number: H04B10/035 ,  B64F1/20 ,  H04B10/807 ,  H05B37/0263

Abstract: Control and monitoring of airfield lighting from a control tower and other maintenance/supervisory locations uses double loop self healing fiber optic communications circuits to enhances speed of operation even with large and complex airfield lighting system requirements, and significantly increased reliability and operating lifetime thereof. A plurality of local light control and monitoring groups are used, wherein each group has at least one fiber optic communications concentrator that independently communicates with light controllers within the group and the remote supervisory control and monitoring systems in the control tower and other locations. This allows faster control response of the lamps in each of the airfield light fixtures, and monitoring concentration of operational data within each group. Each of the at least one fiber optic concentrators is optically coupled to double loop self healing fiber optic communications backbone circuits coupled to main and backup computer supervisory control systems for redundancy purposes.

Abstract translation: 控制和监控来自控制塔和其他维护/监控位置的机场照明使用双回路自愈光纤通信电路，即使在大型和复杂的机场照明系统要求下也能提高运行速度，并显着增加其可靠性和使用寿命。 使用多个本地光控制和监视组，其中每个组具有至少一个光纤通信集中器，其独立地与组内的光控制器以及控制塔和其他位置中的远程监控和监视系统通信。 这允许在每个机场照明装置中的灯的控制响应更快，并且监视每组内的操作数据的集中。 所述至少一个光纤聚光器中的每一个光学耦合到耦合到主计算机和备用计算机监视控制系统的双回路自愈光纤通信主干电路，用于冗余目的。

公开(公告)号：US20090202237A1

公开(公告)日：2009-08-13

申请号：US12029151

申请日：2008-02-11

Applicant: Hongbin Zhang ,  Lee Richardson

Inventor： Hongbin Zhang ,  Lee Richardson

IPC: H04B10/16

CPC classification number: H04B10/0777 ,  H04B10/035 ,  H04B10/2918

Abstract: A system and method for fault identification in optical communication networks. One or more repeaters in the system includes a loop back path that couples an output a first amplifier for amplifying signals carried in a first direction through a repeater to an input of a second amplifier for amplifying signals carried in a second direction through said repeater. Fault analysis is conducted using loop gain data associated with test signals transmitted on the first or second paths and returned on the opposite path through the loop back paths.

Abstract translation: 一种用于光通信网络故障识别的系统和方法。 系统中的一个或多个中继器包括环路路径，其将输出端与第一放大器耦合，用于将通过中继器的第一方向承载的信号放大到第二放大器的输入端，用于放大通过所述中继器在第二方向上承载的信号。 使用与在第一或第二路径上发送的测试信号相关联的环路增益数据进行故障分析，并且通过回路路径在相反路径上返回。