公开(公告)号：US20040008988A1

公开(公告)日：2004-01-15

申请号：US10261099

申请日：2002-09-30

Inventor： Ornan A. Gerstal ,  Humair Raza ,  Rajiv Ramaswami ,  Babu O. Narayanan ,  Robert Ward ,  Robert Keys ,  David Park ,  Vasant Sahay ,  Osama Aboul-Magd ,  Frederic Simard

IPC: H04J014/00

CPC classification number: H04J14/0227 ,  H04B10/032 ,  H04B10/07 ,  H04B10/0775 ,  H04B10/0793 ,  H04B10/27 ,  H04B2210/071 ,  H04B2210/075 ,  H04J14/0241 ,  H04J14/0279 ,  H04J14/0284 ,  H04J14/0287 ,  H04J14/0294 ,  H04J14/0297

Abstract: Automatic discovery and verification of optical communication links as well as isolation of link failures in an optical communication system.

Abstract translation: 光通信链路的自动发现和验证以及光通信系统中链路故障的隔离。

公开(公告)号：US20030206684A1

公开(公告)日：2003-11-06

申请号：US10419952

申请日：2003-04-22

Applicant: FUJITSU LIMITED

Inventor： Tetsuya Nishi ,  Satoshi Kuroyanagi

IPC: G02B006/35 ,  G02B006/28

CPC classification number: H04J14/0291 ,  G02B6/356 ,  H04J14/0206 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217 ,  H04J14/0279 ,  H04J14/0283 ,  H04J14/0284 ,  H04J14/0297 ,  H04Q11/0005 ,  H04Q2011/0016 ,  H04Q2011/002 ,  H04Q2011/0024 ,  H04Q2011/003 ,  H04Q2011/0043 ,  H04Q2011/0052 ,  H04Q2011/0075 ,  H04Q2011/0081 ,  H04Q2011/0092

Abstract: In an optical cross-connect device for constructing a large scale optical network that supports an increase in the number of wavelengths, and an optical network using this optical cross-connect device, the optical cross-connect device comprises: a combination of any two of nullanull units of wave multiplexers for multiplexing nullnnull waves of light signals directly received from an intra-office device to be transferred to a same destination, nullLnullanull threads of transmission lines each for transmitting an n-wave-multiplexed light signal, and nullanull units of wave demultiplexers for demultiplexing the n-wave-multiplexed light signals bound for the same destination; and an L*L light switch for selecting the combination for transmitting the light signals to the same destination. Furthermore, a protective transmission line is provided, and a protective-signal light switch for selecting a combination of the protective transmission line, the wave multiplexer, and the wave demultiplexer is provided.

Abstract translation: 在用于构建支持波长数目增加的大规模光网络的光交叉连接装置中，以及使用该光交叉连接装置的光网络，光交叉连接装置包括： 用于将从局内设备直接接收的要传输到同一目的地的“n”波的光信号复用为“a”个单元的波多路复用器，每个发送n波复用光信号的传输线的“La”线 和“一个”单位的波解复用器，用于解复用为同一目的地绑定的n波复用光信号; 以及用于选择用于将光信号发送到同一目的地的组合的L * L光开关。 此外，提供了保护传输线，并且提供了用于选择保护传输线，波多路复用器和波解复用器的组合的保护信号灯开关。

公开(公告)号：US20030198469A1

公开(公告)日：2003-10-23

申请号：US10411312

申请日：2003-04-11

Applicant: ALCATEL

Inventor： Arnaud Bisson ,  Jean-Paul Faure ,  Ludovic Noirie

IPC: H04B010/08

CPC classification number: H04J14/0227 ,  H04B10/077 ,  H04B10/07955 ,  H04B2210/258 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0246 ,  H04J14/0279 ,  H04J14/0298

Abstract: The present invention relates to a method of monitoring the transmission of optical signals including a step of inserting a monitoring signal (S) more particularly suited to monitoring the quality of service. During the transmission of optical signals each carried by a predefined wavelength defining a transmission channel (Ci), said signals are grouped onto the same fiber in a band (B) of channels. The method then includes a step of simultaneously modulating said signals grouped in the band of channels using the monitoring signal to be transmitted, so that each of the signals constitutes a carrier of the monitoring signal.

Abstract translation: 本发明涉及一种监测光信号传输的方法，包括插入更特别适用于监视服务质量的监视信号（S）的步骤。 在光信号的传输期间，每个由定义传输信道（Ci）的预定波长传送的光信号，所述信号在信道的频带（B）中被分组到相同的光纤上。 该方法然后包括使用要发送的监视信号同时调制分组在信道频带中的信号的步骤，使得每个信号构成监视信号的载波。

公开(公告)号：US20030185562A1

公开(公告)日：2003-10-02

申请号：US10397185

申请日：2003-03-27

Applicant: Dorsal Networks, Inc.

Inventor： Lee Daniel Feinberg ,  Bo Pedersen ,  Ronald Dale Esman ,  John Hagopian ,  Cathal Mahon ,  Brent Ashley Miller ,  M. Imran Hayee ,  Ronald E. Johnson ,  Nandakumar Ramanujam

IPC: G02F001/00

CPC classification number: H04J14/029 ,  H04B10/032 ,  H04J14/0279 ,  H04J14/0283 ,  H04Q11/0062 ,  H04Q2011/0081

Abstract: A collapsed ring fiber optic system includes a service path and a protection path provides at a shallow water portion of the fiber optic system, to deal with any fiber cuts that may occur at the shallow water portion without loss of main trunk bandwidth. The service and protection paths meet at a branch point, which is preferably located at a deep water portion of the fiber optic system. A passive combiner or a 1null2 switch is provided at the branch unit, along with a detector and a processor, to determine whether any signals are being received from the service path, and if not, to reconfigure the system to accept signals from the protection path. At another shallow water portion of the fiber optic system, nearby where a destination is located, the signal provided on the optical path over the deep water portion is split into a service path and a protection path, to provide redundancy to deal with any fiber cuts that may occur. The fiber optic system may also be utilized for a land-based system, having high probability of fiber cut regions and low probability of fiber cut regions.

公开(公告)号：US06628440B1

公开(公告)日：2003-09-30

申请号：US09348299

申请日：1999-07-07

Applicant: R. James Bateman

Inventor： R. James Bateman

IPC: H04J1402

CPC classification number: H04J14/0289 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0279 ,  H04Q2011/0081

Abstract: A system for diverting an optical component signal from a multiplexed optical signal includes an optical communications channel having a first portion and a second portion. A multiplexed optical signal having a plurality of component signals may be transmitted through the optical communications channel. Each component signal lies within a different optical bandwidth. The system also includes a branch optical channel having a first section and a second section. A signal diverter that optically couples the first portion of the communications channel to the second portion of the communications channel directs a diverted portion of the multiplexed optical signal into the first section of the branch optical channel. The signal diverter also allows a non-diverted portion of the multiplexed optical signal to propagate into the second portion of the optical communications channel. An optical wavelength separator that is optically coupled to the first section of the branch optical channel separates a selected component signal from the diverted portion of the optical signal. The optical wavelength separator also optically couples the selected component into the second section of the branch optical channel. A port that is optically coupled to the second section of the branch optical channel allows the optical coupling of an optical device to the second section of the branch optical channel.

Abstract translation: 用于从复用的光信号转发光学分量信号的系统包括具有第一部分和第二部分的光通信信道。 具有多个分量信号的复用光信号可以通过光通信信道发送。 每个分量信号位于不同的光学带宽内。 该系统还包括具有第一部分和第二部分的分支光学通道。 将通信信道的第一部分光耦合到通信信道的第二部分的信号转换器将多路复用光信号的转移部分引导到分支光信道的第一部分。 信号转换器还允许复用光信号的非转移部分传播到光通信信道的第二部分。 光耦合到分支光通道的第一部分的光学波长分离器将选择的分量信号与光信号的转向部分分离。 光波长分离器还将所选择的部件光耦合到分支光通道的第二部分。 光耦合到分支光信道的第二部分的端口允许光学装置与分支光学信道的第二部分的光耦合。

公开(公告)号：US06626587B1

公开(公告)日：2003-09-30

申请号：US09500824

申请日：2000-02-10

Applicant: Oren Marmur

Inventor： Oren Marmur

IPC: H04B1008

CPC classification number: H04Q11/0062 ,  H04B10/00 ,  H04J14/0279 ,  H04J14/0291 ,  H04Q2011/0081 ,  H04Q2011/0083

Abstract: An optical transmission system comprising a plurality of telecommunication channels, characterized in that when a failure occurs in one or more of said telecommunication channels, a continuous operation of the non-failing telecommunication channels is enabled, provided that the overall transmitted energy in said non-failing telecommunication channels exceeds a pre-defined threshold.

Abstract translation: 一种包括多个电信信道的光传输系统，其特征在于，当在一个或多个所述电信信道中发生故障时，能够使所述非故障电信信道的连续操作成立，只要所述非电信信道中的总发射能量， 失败的电信渠道超过预定义的门槛。

公开(公告)号：US20030053168A1

公开(公告)日：2003-03-20

申请号：US10243646

申请日：2002-09-16

Applicant: LG Electronics Inc.

Inventor： Sang Bok Yum

IPC: H04J014/02 ,  H04B010/00

CPC classification number: H04J3/1623 ,  H04J3/0685 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0279

Abstract: A channel allocation apparatus of an OSU in a WDM system includes: an optical signal converter for performing a conversion operation between an E1 data frame and an optical signal; a channel allocating unit for performing a counting operation by a certain unit on the E1 data, detecting an channel allocated to the E1 data or allocating a channel to the E1 data; an E1 framer for reframing the E1 data frame outputted from the optical signal converter to output it to the channel allocating unit, and framing the E1 data outputted from the channel allocating unit to output it to the optical signal converter; and a microprocessor for controlling an operation of the E1 framer. After the E1 data is counted by a certain unit to sequentially identify a plurality of channels, a channel data is assigned to a corresponding channel or a channel data assigned to the channel is detected.

Abstract translation: WDM系统中的OSU的信道分配装置包括：光信号转换器，用于执行E1数据帧和光信号之间的转换操作; 信道分配单元，用于对E1数据执行特定单元的计数操作，检测分配给E1数据的信道或向E1数据分配信道; E1成帧器，用于对从光信号转换器输出的E1数据帧进行重构，将其输出到信道分配单元;以及对从信道分配单元输出的E1数据进行成帧，将其输出到光信号转换器; 以及用于控制E1成帧器的操作的微处理器。 在E1数据被特定单元计数以顺序地标识多个信道之后，将信道数据分配给对应的信道，或者检测分配给该信道的信道数据。

公开(公告)号：US20030048508A1

公开(公告)日：2003-03-13

申请号：US09939784

申请日：2001-08-28

Inventor： Zhengchen Yu ,  William Shieh ,  Thomas R. Clark JR. ,  Vladimir Petricevic

IPC: H04J014/02

CPC classification number: H04J14/0221 ,  H04B10/506 ,  H04J14/02 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/0279 ,  H04J14/0297

Abstract: A wavelength division multiplexed (WDM) optical network includes a plurality of optical transmitters, each optical transmitter generating a data signal sent over a respective one of a plurality of signal channels, the plurality of signal channels being divided into a number of sub-bands where each sub-band includes at least two signal channels, and a plurality of substitute signal transmitters, the number of substitute signal transmitters being equal to the number of sub-bands, each substitute signal transmitter generating a substitute signal which provides loading in a corresponding sub-band. The WDM optical network also includes a combining circuit which combines the data signals output from the plurality of optical transmitters and the substitute signals output from the plurality of substitute signal transmitters into a WDM signal, and an optical transmission fiber which receives the WDM signal from the combining circuit.

Abstract translation: 波分多路复用（WDM）光网络包括多个光发射机，每个光发射机产生通过多个信号信道中的相应一个发送的数据信号，所述多个信号信道被划分成多个子带， 每个子带包括至少两个信号信道和多个替代信号发射机，替代信号发射机的数目等于子带数，每个替代信号发射机产生替代信号，该替代信号提供相应子载波的加载 -带。 WDM光网络还包括组合电路，其将从多个光发射机输出的数据信号和从多个替代信号发射机输出的替代信号组合成WDM信号，以及光传输光纤，其从 组合电路。

公开(公告)号：US20030043429A1

公开(公告)日：2003-03-06

申请号：US09941170

申请日：2001-08-28

Inventor： Ken Dumble ,  Matthew Miller ,  Edward J. Kearns ,  Helen Butcher ,  John Booth ,  Vincent Fuller

IPC: H04J014/00

CPC classification number: H04J14/02 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/0279 ,  H04J14/0295

Abstract: A communication system includes an optical transmission network having an input end and an output end. A wavelength division multiplexer coupled to the input end of the optical transmission network receives data packets directly from each internet-traffic source and modulates, in response to those data packets, a corresponding optical beam having a selected wavelength. At the other end of the optical transmission network, a wavelength division demultiplexer is configured to select a particular optical beam corresponding to each internet-traffic source and to retrieve the data packets placed thereon by the wavelength division multiplexer.

Abstract translation: 通信系统包括具有输入端和输出端的光传输网络。 耦合到光传输网络的输入端的波分多路复用器从每个互联网业务源直接接收数据分组，并且响应于那些数据分组调制具有选定波长的相应光束。 在光传输网络的另一端，波分解复用器被配置为选择对应于每个因特网业务源的特定光束并且检索由波分多路复用器放置在其上的数据分组。

公开(公告)号：US20030039009A1

公开(公告)日：2003-02-27

申请号：US10098342

申请日：2002-03-18

Inventor： Toshio Nakamura

IPC: H04B010/08 ,  H04J014/08

CPC classification number: H04J14/08 ,  H04B10/00 ,  H04J14/0221 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0279

Abstract: An optical multiplexing apparatus converts input signals from multiple channels to an optical signal including optical pulses multiplexed on the time axis, transmits the optical signal, and controls the average power of the transmitted optical signal so as to maintain constant transmission quality even if the input signal on one or more channels is lost. For example, the average power may be held at a target value that varies according to the combined duty cycle of the multiplexed optical pulses. Alternatively, the average optical power may be held constant and dummy signals may be inserted to replace lost input signals, or to fill idle channels until signal input begins.

Abstract translation: 光复用装置将来自多个通道的输入信号转换成包括在时间轴上复用的光脉冲的光信号，发送光信号，并且控制所发送的光信号的平均功率，以便即使输入信号 一个或多个通道丢失。 例如，平均功率可以保持在根据复用的光脉冲的组合占空比而变化的目标值。 或者，平均光功率可以保持不变，并且可以插入虚拟信号以替换丢失的输入信号，或者填充空闲信道直到信号输入开始。