公开(公告)号：US09935721B2

公开(公告)日：2018-04-03

申请号：US15393355

申请日：2016-12-29

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Masahito Morimoto

IPC: H04B10/00 ,  H04B10/85 ,  H04B10/70 ,  H04B10/532

CPC classification number: H04B10/85 ,  H04B10/532 ,  H04B10/70 ,  H04L9/0852

Abstract: The present invention provides an optical communication method and an optical communication system in which eavesdropping is more difficult than in conventional techniques. An optical communication system in one embodiment of the present invention comprises: a photon pair generator which generates a correlated photon pair; a polarizer which is provided on an optical path of one photon of the correlated photon pair and direction of which is changeable based on information to be transmitted; a shutter which is provided between the photon pair generator and the polarizer on the optical path of the one photon of the correlated photon pair and which is capable of blocking the one photon of the correlated photon pair; and a photon detector which is provided on an optical path of another photon of the correlated photon pair.

公开(公告)号：US09800352B2

公开(公告)日：2017-10-24

申请号：US14798838

申请日：2015-07-14

Applicant: Kabushiki Kaisha Toshiba

Inventor： Bernd Matthias Frohlich ,  James Dynes ,  Zhiliang Yuan ,  Andrew James Shields

IPC: H04B10/00 ,  H04B10/85 ,  H04B10/70 ,  H04B10/2581

CPC classification number: H04B10/85 ,  H04B10/2581 ,  H04B10/70

Abstract: A quantum communication system, comprising: a quantum transmitter optically coupled to a first waveguide; a first communication device optically coupled to a second waveguide; a multi-core optical fiber comprising a first core and a second core; a spatial multiplexing unit, configured to optically couple the first waveguide to the first core and the second waveguide to the second core.

公开(公告)号：US20170093503A1

公开(公告)日：2017-03-30

申请号：US15183690

申请日：2016-06-15

Applicant: Alcatel Lucent

Inventor： Peter J. Winzer ,  Kyle C. Guan ,  Emina Soljanin

IPC: H04B10/85 ,  H04J14/04 ,  H04L29/06 ,  H04B10/50 ,  H04B10/60 ,  H04B10/2581 ,  H04B10/079

CPC classification number: H04B10/85 ,  H04B10/07953 ,  H04B10/2581 ,  H04B10/50 ,  H04B10/60 ,  H04J14/04 ,  H04L63/1475

Abstract: A system, for example an optical communication system, includes an optical transmitter. The transmitter is configured to direct towards an optical fiber a spatially multiplexed optical signal. The optical fiber is configured to convey data via the multiplexed optical signal from the transmitter to a receiver. The transmitter is configured to set a signal-to-noise ratio (SNR) or a transmission capacity of the multiplexed optical signal to achieve a predetermined secrecy capacity of the transmission.

公开(公告)号：US09553881B2

公开(公告)日：2017-01-24

申请号：US14405338

申请日：2012-06-11

Applicant: Matteo Costantini ,  Roberto Magri

Inventor： Matteo Costantini ,  Roberto Magri

IPC: G06F21/00 ,  H04L29/06 ,  H04J14/02 ,  H04Q11/00 ,  H04B10/85 ,  H04J14/04

CPC classification number: H04L63/1416 ,  H04B10/85 ,  H04J14/0204 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/0227 ,  H04J14/04 ,  H04Q11/0062 ,  H04Q2011/0079 ,  H04Q2011/0083

Abstract: Apparatus for an optical communications network has optical paths for optical traffic, and optical ports, one of which is an unused output port. A security monitoring system has a blocking part coupled removably to the unused output port to occupy it to prevent unauthorized access. An optical detector can detect optical signals passing through the unused output port to the blocking part, and there is alarm circuitry configured to output an alarm signal based on the detecting of the optical signals. This monitoring can help make the node more secure from interference or from eavesdropping. By blocking the port, the monitoring can be independent of the type of signals on the optical paths. The system can be passive or active, and does not require a change in the installed node configuration and so can be added easily to existing infrastructure.

Abstract translation: 用于光通信网络的装置具有用于光业务的光路，以及光端口，其中一个是未使用的输出端口。 安全监控系统具有可拆卸地耦合到未使用的输出端口以占用它以防止未经授权的访问的阻挡部分。 光检测器可以检测通过未使用的输出端口到阻塞部分的光信号，并且存在被配置为基于光信号的检测来输出报警信号的报警电路。 这种监控可以帮助节点更安全地防止干扰或窃听。 通过阻塞端口，监视可以独立于光路上的信号类型。 该系统可以是被动或主动的，并且不需要更改已安装的节点配置，因此可以轻松地添加到现有的基础设施。

公开(公告)号：US09496956B2

公开(公告)日：2016-11-15

申请号：US15011519

申请日：2016-01-30

Applicant: Prophet Productions, LLC

Inventor： David G Aviv ,  Bobby Elijah Aviv

IPC: H04B10/2575 ,  H04L29/06 ,  G02B6/38 ,  G02B6/44 ,  H04B1/403 ,  H04B10/25 ,  H04B10/516 ,  H04B10/80 ,  H04B10/85 ,  H04B1/3827

CPC classification number: H04B10/2575 ,  G02B6/2808 ,  G02B6/3849 ,  G02B6/3887 ,  G02B6/4268 ,  G02B6/4415 ,  G02B6/4471 ,  H04B1/3838 ,  H04B1/406 ,  H04B10/2504 ,  H04B10/25758 ,  H04B10/5161 ,  H04B10/802 ,  H04B10/85 ,  H04L63/30

Abstract: A system and method for removing radio frequency emissions from an electronic device. The system comprises collectors for collection of the radio frequency signals, combiners for combining the signals to produce a combined signal, fiber optic transmitter for up-converting the combined radio frequency signals to an optical wave length signal, optical fiber for directing the optical signal, and a termination device for terminating the optical signal.

Abstract translation: 一种用于从电子设备去除射频发射的系统和方法。 该系统包括用于收集射频信号的收集器，用于组合信号以产生组合信号的组合器，用于将组合的射频信号上变频到光波长信号的光纤发射器，用于引导光信号的光纤， 以及用于终止光信号的终端设备。

公开(公告)号：US09413470B1

公开(公告)日：2016-08-09

申请号：US14642514

申请日：2015-03-09

Applicant: The Boeing Company

Inventor： Shawn Michael Smith ,  Claudio G. Parazzoli ,  Barbara A. Capron ,  Shahriar Khosravani ,  Michael C. Freebery

IPC: H04B10/00 ,  H04B10/70 ,  H04B10/85 ,  H04J14/00

CPC classification number: H04B10/90 ,  H04B10/70 ,  H04B10/85 ,  H04L9/0858

Abstract: Systems and methods for digital communication utilizing entangled qubits are disclosed. The disclosed systems and methods exploit selective entanglement swapping to transfer an entangled state between a sending device and a receiving device. Each device includes pairs of qubits that are independently entangled with pairs of qubits in the other device. By selectively entangling the qubits within a pair in the sending device, the qubits of the corresponding pair in the receiving device also are selectively entangled. When the qubits are entangled, they are projected onto a particular entangled state type. Though no information may be transferred through selective entanglement of one qubit pair, systems and methods of the present disclosure determine whether a set of pairs of qubits are entangled by determining whether the distribution of pairs is a correlated or uncorrelated distribution (a probabilistic approach) and transform the distribution type to a classical bit of data.

Abstract translation: 公开了使用纠缠量子位的数字通信的系统和方法。 所公开的系统和方法利用选择性纠缠交换来在发送设备和接收设备之间传送纠缠状态。 每个设备包括成对的量子位，其在另一个设备中独立地与一对量子位纠缠。 通过选择性地在发送装置中缠结一对中的量子位，接收装置中相应对的量子位也被选择性地纠缠。 当量子位被纠缠时，它们被投射到特定的纠缠状态。 虽然不能通过选择性纠缠一个量子位对来传递信息，但是本公开的系统和方法通过确定对的分布是否是相关或不相关的分布（概率方法）来确定一组量子比对是否被纠缠，并且 将分布类型转换为经典的数据位。

公开(公告)号：US09264150B2

公开(公告)日：2016-02-16

申请号：US13432414

申请日：2012-03-28

Applicant: Kerry Bernstein ,  Kenneth J. Goodnow ,  Clarence R. Ogilvie ,  Charles S. Woodruff ,  Sebastian T. Ventrone

Inventor： Kerry Bernstein ,  Kenneth J. Goodnow ,  Clarence R. Ogilvie ,  Charles S. Woodruff ,  Sebastian T. Ventrone

IPC: H04B10/85 ,  G02B26/08

CPC classification number: H04B10/85 ,  G02B26/0816

Abstract: A reactive metal optical security device for implementation in an optical network and/or system to provide a mechanism for disrupting the optical network and/or system. The security device includes a mirror comprising a reactive metal stack and configured to reflect an optical signal and receive an electrical signal. The security device further includes a semiconductor chip configured to send the electrical signal to the mirror.

Abstract translation: 一种用于在光网络和/或系统中实现以提供用于中断光网络和/或系统的机制的无功金属光学安全装置。 安全装置包括反射镜，其包括无功金属堆叠并且被配置为反射光信号并接收电信号。 安全装置还包括被配置为将电信号发送到反射镜的半导体芯片。

公开(公告)号：US20150326591A1

公开(公告)日：2015-11-12

申请号：US14688218

申请日：2015-04-16

Applicant: Calix, Inc.

Inventor： Christopher T. Bernard ,  Mark R. Biegert ,  Charles J. Eddleston ,  Gregg C. Heikkinnen ,  Curtis L. Kruse

IPC: H04L29/06 ,  H04J3/16 ,  H04J3/14 ,  H04B10/85 ,  H04Q11/00

CPC classification number: H04B10/038 ,  H04B10/0773 ,  H04B10/07955 ,  H04B10/272 ,  H04B10/85 ,  H04J3/14 ,  H04J3/1694 ,  H04J14/08 ,  H04L63/1408 ,  H04Q11/0067 ,  H04Q2011/0083 ,  H04Q2011/0086

Abstract: Techniques are described for identifying a rogue network interface device whose laser is not under control of a controller of the network interface device. The techniques identify the rogue network interface device based on reception of a predefined data pattern in a timeslot that is not reserved for any of the network interface devices without needing to disable upstream data transmission from the network interface devices during their assigned timeslots. The techniques also relate to a network interface device determining whether the network interface device is transmitting optical signals at a wavelength different than the wavelength that the OLT to which the network interface device is associated receives.

公开(公告)号：US09091835B2

公开(公告)日：2015-07-28

申请号：US13799141

申请日：2013-03-13

Applicant: CORNING CABLE SYSTEMS LLC

Inventor： Dave Eric Cunningham

IPC: G02B6/24 ,  G02B6/44 ,  G02B6/26 ,  H04B10/85

CPC classification number: G02B6/4471 ,  G02B6/264 ,  H04B10/85

Abstract: A fiber optic assembly includes an optical cable supporting a plurality of optical fibers and a furcation integrated with the optical cable. The furcation separates optical fibers of the plurality into a first set and a second set. The first set includes a loopback channel that enters the furcation, loops around within the furcation, and then returns to the optical cable such that optical transmissions passing along the loopback channel pass twice through the optical cable in opposing directions. The second set passes through the furcation without looping back into the optical cable.

Abstract translation: 光纤组件包括支撑多根光纤的光缆和与光缆一体化的分叉。 分叉将多个光纤分成第一组和第二组。 第一组包括进入分叉的环回通道，在分叉处环绕，然后返回到光缆，使得沿着环回通道的光学传输在相反的方向上通过光缆两次。 第二组通过分叉而不循环回入光缆。

公开(公告)号：US09088372B2

公开(公告)日：2015-07-21

申请号：US13775324

申请日：2013-02-25

Applicant: US Seismic Systems, Inc.

Inventor： Eric Lee Goldner ,  Gerald Robert Baker ,  James Kengo Andersen ,  Agop Hygasov Cherbettchian

IPC: G02B13/24 ,  F21V8/00 ,  G01J1/04 ,  H04B10/85 ,  G08B13/24

CPC classification number: G08B13/1481 ,  G01J1/0425 ,  G02B6/0005 ,  G08B13/24 ,  H04B10/85

Abstract: A fiber optic security system is provided. The fiber optic security system includes at least one length of fiber optic cable affixed to at least one item to be monitored using the fiber optic security system. The fiber optic security system also includes at least one local control node, the at least one local control node including at least one light source for generating and transmitting light through the at least one length of fiber optic cable, and the at least one local control node monitoring a status of the light. The fiber optic security system also includes a remote control unit for receiving information from the at least one local control node regarding the status of the light.

Abstract translation: 提供光纤安全系统。 光纤安全系统包括使用光纤安全系统固定到待监视的至少一个物品的至少一段长度的光纤电缆。 所述光纤安全系统还包括至少一个本地控制节点，所述至少一个本地控制节点包括至少一个光源，所述至少一个光源用于通过所述至少一个长度的光纤电缆产生和发射光，并且所述至少一个本地控制 节点监视光的状态。 光纤安全系统还包括用于从至少一个本地控制节点接收关于光的状态的信息的远程控制单元。