公开(公告)号：EP2771733A4

公开(公告)日：2015-08-19

申请号：EP12843541

申请日：2012-10-27

Applicant: NEOPHOTONICS CORP

Inventor： TICKNOR ANTHONY J ,  VOROBEICHIK ILYA ,  WAY WINSTON

IPC: H04Q11/00

CPC classification number: G02B6/3546 ,  G02B6/1225 ,  G02B6/29382 ,  G02B6/35 ,  G02B6/356 ,  G02B6/3562 ,  G02B6/3596 ,  G02B2006/12145 ,  H04J14/0212 ,  H04J14/0219 ,  H04Q11/0005 ,  H04Q2011/0024 ,  H04Q2011/0052

Abstract: Telecommunications switches are presented, including expandable optical switches that allow for a switch of N inputs×M outputs to be expanded arbitrarily to a new number of N inputs and/or a new number of M outputs. Switches having internal switch blocks controlling signal bypass lines are also provided, with these switches being useful for the expandable switches.

Abstract translation: 提供了电信交换机，包括允许N个输入的切换的可扩展光学开关×M个输出被任意扩展到新的N个输入和/或新的M个输出数量。 还提供了具有控制信号旁路线路的内部开关块的开关，这些开关对于可扩展开关是有用的。

公开(公告)号：EP2860571A4

公开(公告)日：2015-07-08

申请号：EP12878696

申请日：2012-06-11

Applicant: FUJITSU LTD

Inventor： OI HIROKI ,  KOMAKI KOSUKE

IPC: G02B26/08 ,  H04B10/079 ,  H04J14/00 ,  H04J14/02 ,  H04Q11/00

CPC classification number: H04B10/07955 ,  H04B10/0797 ,  H04B10/564 ,  H04J14/0212 ,  H04J14/0221 ,  H04Q11/0003

公开(公告)号：EP2792092A4

公开(公告)日：2015-07-08

申请号：EP12857873

申请日：2012-12-12

Applicant: LEVEL 3 COMMUNICATIONS LLC

Inventor： CROWE JAMES Q ,  DOERR PETER BRENNAN ,  DUGAN ANDREW

IPC: H04J3/16 ,  H04J14/02 ,  H04L12/801 ,  H04L12/911

CPC classification number: H04L47/12 ,  H04J14/0212 ,  H04J14/0257 ,  H04J14/0267 ,  H04J14/0268 ,  H04J14/0272 ,  H04J14/0284 ,  H04L47/72

Abstract: An asymmetrical and dynamic routing system (ADRS) is provided to enable the dynamic adjustment of the bandwidth capacity of two or more network devices exchanging data. The two or more network devices monitor their current bandwidth demand between themselves and others in a network and a first network device can transmit bandwidth request to a second network device when the first network device reaches transmission bandwidth capacity. Each network device is further configured with additional transmit and receive ports and can be selectively enabled in response to a bandwidth request from other network devices. Each network device is further configured to generate control signals that are sent to optical mirrors to re-direct data signals to or from the one or more enabled additional transmit and receive ports.

公开(公告)号：EP2885888A1

公开(公告)日：2015-06-24

申请号：EP13750928.7

申请日：2013-08-15

Applicant: Thomas Swan and Co. Ltd.

Inventor： HOLMES, Melanie

IPC: H04J14/02 ,  G02B6/293

CPC classification number: H04Q11/0005 ,  H04J14/02 ,  H04J14/0212 ,  H04Q11/0003 ,  H04Q2011/0009

Abstract: A device and method for controlling light by wavelength in a device with a switch plane and a dispersion plane uses optics providing an imaging function in the dispersion plane, and a Fourier transform function in the switch plane, so as to enable crosstalk to be reduced

公开(公告)号：EP2548036A4

公开(公告)日：2015-03-25

申请号：EP11756906

申请日：2011-03-16

Applicant: TELCORDIA TECH INC

Inventor： SKOOG RONALD A ,  WILSON BRIAN J

IPC: G01R31/08

CPC classification number: H04J14/0212 ,  H04J14/0227 ,  H04J14/0257 ,  H04L41/142 ,  H04L41/145

公开(公告)号：EP2766766A4

公开(公告)日：2015-02-11

申请号：EP13743881

申请日：2013-01-30

Applicant: HUAWEI TECH CO LTD

Inventor： MAO CHONGCHANG ,  LI MINCHUN ,  CHEN BO ,  FANG YANG

IPC: G02B26/08 ,  G02B5/18 ,  G02B5/30 ,  G02B5/32 ,  G02B6/35 ,  G02B27/44 ,  G02F1/13 ,  G02F1/1347 ,  G02F1/31 ,  H04J14/02 ,  H04Q3/00

CPC classification number: G02F1/31 ,  G02B3/005 ,  G02B5/12 ,  G02B6/29383 ,  G02B6/356 ,  G02B6/3594 ,  G02B17/0864 ,  G02B26/0808 ,  G02B27/285 ,  G02B27/286 ,  G02F1/0136 ,  G02F1/133528 ,  G02F1/133788 ,  G02F1/13471 ,  G02F1/292 ,  G02F2001/133538 ,  G02F2001/133541 ,  G02F2001/13355 ,  G02F2001/133757 ,  G02F2001/311 ,  G02F2201/305 ,  G02F2203/05 ,  G02F2203/07 ,  H04J14/0212 ,  H04Q3/00 ,  H04Q2011/0015 ,  H04Q2213/1301

Abstract: Apparatus and method embodiments are provided for implementing a wavelength selective switch (WSS). The embodiments use combinations of switchable polarization grating (SPG) and LC cells and combinations of polymer polarization grating (PPG) and LC cells to achieve 1×N WSS systems. An embodiment optical switch includes a liquid crystal cell and a SPG cell adjacent to the liquid crystal cell. The SPG includes liquid crystal material between two photo-alignment layers, an electrode layer overlying each photo-alignment layer, and a glass substrate overlying each electrode layer. An embodiment method includes polarizing an incident light beam at a circular polarization before diffracting, at a polarization grating, the polarized incident light beam in a determined angle that corresponds to a diffraction order in accordance to the circular polarization of the incident light beam and a hologram pattern direction formed inside the polarization grating.

公开(公告)号：EP2826178A1

公开(公告)日：2015-01-21

申请号：EP13718641.7

申请日：2013-03-05

Applicant: Telefonaktiebolaget L M Ericsson (PUBL)

Inventor： DAHLFORT, Stefan ,  CAVALIERE, Fabio

IPC: H04J14/02

CPC classification number: H04J14/0212

Abstract: A peer network node, along with other peer network nodes, forms a higher- tiered optical network that transports wavelength division multiplexed traffic for multiple lower-tiered optical networks. The node comprises a plurality of dedicated bidirectional optical ports, including two or more lower-tiered ports and one or more peer ports. The node also comprises one or more hub-side bidirectional optical ports, and a switching circuit. The switching circuit is configured to distribute traffic received at the one or more hub-side ports to respective dedicated ports, for dedicated transport to one or more of the lower-tiered networks and peer network nodes. The switching circuit is also configured to direct any traffic received at the dedicated ports to the one or more hub-side ports for transport to a hub node, even if that traffic is actually destined for one of the lower-tiered networks to which a lower-tiered port is connected.

公开(公告)号：EP2661096B1

公开(公告)日：2014-12-10

申请号：EP12290153.1

申请日：2012-05-04

Applicant: ALCATEL LUCENT

Inventor： Pointurier, Yvan ,  Simonneau, Christian

IPC: H04Q11/00

CPC classification number: H04Q11/0005 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0212 ,  H04J14/0295 ,  H04Q11/0066 ,  H04Q2011/0009 ,  H04Q2011/0013 ,  H04Q2011/0016 ,  H04Q2011/0043

公开(公告)号：EP2807495A1

公开(公告)日：2014-12-03

申请号：EP12859057.7

申请日：2012-12-05

Applicant: Telcordia Technologies, Inc.

Inventor： SKOOG, Ronald, A.

IPC: G01R31/08

CPC classification number: H04J14/0227 ,  H04J14/0212 ,  H04J14/0256 ,  H04J14/0267 ,  H04J14/0268 ,  H04J14/0284 ,  H04J14/0294 ,  H04L47/724

Abstract: A three-way handshake method for optical messaging in a multi-domain optical network that includes a first pass from a source domain to a destination domain through intermediate domains on candidate working paths, collecting information identifying available routing resources for each working path, calculating a working path metric and storing each of the metrics at the respective border node, determining a path key of the topology of each domain working path and using the path key to identify the path outside its domain and determining the best working paths and border nodes to use. A second pass using the path keys for identifying the working path in each domain and reserving the identified routing resources and selecting which routing resources to use. A third pass identifying the selected routing resources and establishing an optical signaling message path between the source node and the destination node.

公开(公告)号：EP2760147A1

公开(公告)日：2014-07-30

申请号：EP13195453.9

申请日：2013-12-03

Applicant: FUJITSU LIMITED

Inventor： Sone, Kyosuke ,  Aoki, Yasuhiko ,  Nakagawa, Goji ,  Oda, Shoichiro

IPC: H04J14/02

CPC classification number: H04J14/0212 ,  H04B10/07957 ,  H04J14/0221

Abstract: Amonitoring apparatus, that monitors a wavelength tunable optical filter for filtering an optical signal to which a frequency modulation component is added, includes: an optical filter (61b) configured to filter the optical signal output from the wavelength tunable optical filter; a detector (63b) configured to detect amplitude of the frequency modulation component included in the optical signal output from the optical filter; a generator (64) configured to generate an output-side amplitude distribution representing a distribution of the amplitude of the frequency modulation component detected by the detector, by sweeping a transmission wavelength of the optical filter; and a monitoring unit (65) configured to monitor arrangement of a transmission wavelength band of the wavelength tunable optical filter with respect to a spectrum of the optical signal based on the output-side amplitude distribution generated by the generator.

Abstract translation: Amonitoring装置，做监视器的波长可调光滤波器用于向其中加入一个频率调制成分的光信号进行滤波，包括：滤光器（61B），配置成过滤从波长可调光滤波器输出的光信号; 一个检测器（63B）被配置为检测包括在从滤光器输出的光信号的频率调制分量的振幅; 配置成在表示由所述检测器检测的频率的调制分量的振幅的分布输出侧振幅分布，以产生发电机（64），通过扫描光学滤波器的透过波长; 和一个监控单元（65）配置为监控所述波长可调滤光器的透过波长带的排列相对于基于由所述发电机所产生的输出侧振幅分布的光信号的光谱。