公开(公告)号：US06937823B2

公开(公告)日：2005-08-30

申请号：US09799369

申请日：2001-03-05

Applicant: John G Israel ,  Gerard Lingner, III ,  John Mark Ritchey ,  Singanallur R. Thangavelu ,  William A Thompson

Inventor： John G Israel ,  Gerard Lingner, III ,  John Mark Ritchey ,  Singanallur R. Thangavelu ,  William A Thompson

IPC: H04B10/08 ,  H04B10/213 ,  H04J14/02 ,  G02F1/00 ,  H04B10/20 ,  H04J14/00

CPC classification number: H04B10/27 ,  H04B10/07 ,  H04B10/275 ,  H04J14/0206 ,  H04J14/0212

Abstract: Lasing of an optical channel at a particular wavelength is substantially prevented in an optical ring network by automatically verifying the presence of a break, e.g., termination, in the ring for an optical channel of a particular wavelength before allowing a node in the network to establish a “pass through” connection for that optical channel. More specifically, a node attempting to establish a “pass through” route for an optical channel received from another node is prevented from establishing the necessary connections to do so until it is confirmed that the optical channel of interest has been added to the ring or dropped from the ring at another node, thus indicating the presence of a “break” in the optical ring for that optical channel of interest.

Abstract translation: 在允许网络中的节点建立之前，通过自动验证在特定波长的光信道的环中是否存在中断（例如，终止）的存在，基本上防止在光环网络中的光信道的特定波长的激光 该通道的“通过”连接。 更具体地，防止尝试为从另一个节点接收的光信道建立“通过”路由的节点建立必要的连接，直到确认感兴趣的光信道已被添加到环或丢弃 从另一个节点的环，从而指示在该感兴趣的光信道的光环中存在“中断”。

公开(公告)号：US20050158047A1

公开(公告)日：2005-07-21

申请号：US10893750

申请日：2004-07-16

Applicant: Winston Way ,  Xin Jiang ,  Cedric Lam

Inventor： Winston Way ,  Xin Jiang ,  Cedric Lam

IPC: H04B10/00 ,  H04B10/20 ,  H04B10/213

CPC classification number: H04J14/0283 ,  H04B10/032 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/0217 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0232 ,  H04J14/0238 ,  H04J14/0241 ,  H04J14/0294

Abstract: This application describes, among others, fiber ring networks with two fiber rings to provide local fiber failure protection in each node and capability for each node to broadcast to other nodes, and to establish uni-directional and bi-directional communications with one or more selected nodes. Each optical channel may have a single optical break point in the ring networks and this single optical break point is located in a designated node. Various application may advantageously use such ring networks such as ring networks with asymmetric traffic like video-on-demand systems and other information systems.

Abstract translation: 此应用描述了具有两个光纤环的光纤环网络，以在每个节点中提供本地光纤故障保护，并且每个节点能够广播到其他节点，并且建立与一个或多个所选择的单向和双向通信 节点。 每个光信道可以在环网中具有单个光断点，并且该单个光断点位于指定节点中。 各种应用可以有利地使用诸如视频点播系统和其他信息系统之类的诸如具有不对称业务的环网的环网。

公开(公告)号：US06885822B1

公开(公告)日：2005-04-26

申请号：US09875243

申请日：2001-06-05

Applicant: Hon Wah Chin ,  Rohit Sharma ,  Holden Jessup ,  Denis Zaccarin

Inventor： Hon Wah Chin ,  Rohit Sharma ,  Holden Jessup ,  Denis Zaccarin

IPC: H04B10/213 ,  H04J3/08 ,  H04J14/02 ,  G02F1/00 ,  H04B10/20

CPC classification number: H04J14/0227 ,  H04J3/085 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/0295

Abstract: In a ring having first and second adjacent nodes, and two fibers carrying information between the first and second nodes, the first fiber carries information in one direction, while the second fiber carries information in another direction. Each fiber includes wavelength capacity allocated to working and protection traffic. The working and protection wavelength capacities in the first fiber are respectively assigned to first and second disjoint sets of wavelengths, while the working and protection wavelength capacities in the second fiber are respectively assigned to the second and first disjoint sets of wavelengths.

Abstract translation: 在具有第一和第二相邻节点的环中，以及在第一和第二节点之间承载信息的两个光纤，第一光纤沿一个方向传送信息，而第二光纤在另一个方向上传送信息。 每个光纤包括分配给工作和保护流量的波长容量。 第一光纤中的工作和保护波长容量分别被分配给第一和第二不相交的波长组，而第二光纤中的工作和保护波长容量分别被分配给第二和第一不相交的波长组。

公开(公告)号：US6144472A

公开(公告)日：2000-11-07

申请号：US009434

申请日：1998-01-20

Applicant: Wayne H. Knox

Inventor： Wayne H. Knox

IPC: H04J14/00 ,  H04B10/213 ,  H04J14/02

CPC classification number: H04B10/272

Abstract: The passive optical network system and method for providing a predetermined wavelength of data to remote users according to the present invention includes a multiple wavelength transmitter for transmitting a multiwavelength signal. The multiwavelength signal is provided by an access provider and has a plurality of signal components each of predetermined wavelength. A power-splitting passive optical network receives and power-splits the multiwavelength signal into a plurality of distributed multiwavelength signals each associated with a respective remote user. A filter selectively filters out, for each remote user, ones of the signal components of the associated distributed multiwavelength signal to provide the remote user with a selected one signal component of predetermined wavelength.

Abstract translation: 根据本发明的向远程用户提供预定波长数据的无源光网络系统和方法包括用于发送多波长信号的多波长发射机。 多波长信号由接入提供商提供，并且具有每个预定波长的多个信号分量。 功率分配无源光网络接收并将多波长信号功率分裂成每个与相应的远程用户相关联的多个分布式多波长信号。 滤波器针对每个远程用户选择性地滤出相关联的分布式多波长信号的信号分量中的一个以向远程用户提供预定波长的所选择的一个信号分量。

公开(公告)号：USRE36471E

公开(公告)日：1999-12-28

申请号：US660967

申请日：1996-06-12

Applicant: Leonard George Cohen

Inventor： Leonard George Cohen

IPC: H04B10/02 ,  H04B10/08 ,  H04B10/20 ,  H04B10/207 ,  H04B10/213 ,  H04M3/00 ,  H04Q3/52 ,  H04Q11/04 ,  H04J14/02

CPC classification number: H04B10/079 ,  H04B10/038 ,  H04B10/071 ,  H04B10/077 ,  H04B10/0773 ,  H04B10/0775 ,  H04B10/0779 ,  H04B10/0799 ,  H04B10/272 ,  H04J14/0221 ,  H04J14/0227 ,  H04B2210/071 ,  H04B2210/077

Abstract: An optical communication network includes at least one single-mode fiber, referred to as a "primary fiber," for transmission between a central office and a distribution node, and at least one multiplicity of single-mode fibers, referred to as "distribution fibers," for transmission between the distribution node and a multiplicity of optical network units (ONUs). Transmissions are exchanged between the primary and distribution fibers via at least one optical coupler located at the distribution node. The network is passive in the sense that all monitoring of the transmission media and the ONUs can be performed at the central office, without active intervention at remote locations. The network includes a monitor and a multiplicity of bypass lines by means of which at least a portion of inbound signals from the distribution fibers are transmitted to the monitor without passing through the optical coupler at the distribution node.

Abstract translation: 光通信网络包括至少一个称为“主光纤”的单模光纤，用于在中心局和分布节点之间传输，以及至少一个单模光纤，称为“分布光纤 ，“用于分发节点和多个光网络单元（ONU）之间的传输。 传输通过位于分布节点处的至少一个光耦合器在主光纤和分布光纤之间交换。 网络是被动的，在传输媒体和ONU的所有监控都可以在中心局执行，而不需要在远程位置进行主动干预。 网络包括监视器和多条旁路线路，通过该线路将来自分配光纤的入站信号的至少一部分传输到监视器，而不通过分布节点处的光耦合器。

公开(公告)号：US5982518A

公开(公告)日：1999-11-09

申请号：US846086

申请日：1997-04-25

Applicant: Victor Mizrahi

Inventor： Victor Mizrahi

IPC: G02B6/34 ,  H04B10/213 ,  H04J14/02

CPC classification number: G02B6/29383 ,  G02B6/2932 ,  G02B6/29322 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/0209

Abstract: The present invention provides add-drop multiplexers which are compatible with dense wavelength division multiplexed (WDM) systems having large numbers of optical channels. The add-drop multiplexers employ sets of Bragg gratings separated by an optical isolator to reliably add or drop optical channels without crosstalk. The Bragg grating sets and the optical isolator are interposed between first and second optical couplers. Optical channels to be dropped from a WDM optical signal are reflected by the first set of Bragg gratings and exit the add-drop multiplexer through the first coupler. Optical channels to be added to a WDM optical signal enter the add-drop multiplexer through the second optical coupler.

Abstract translation: 本发明提供了与具有大量光通道的密集波分复用（WDM）系统兼容的分插复用器。 分插复用器采用由光隔离器分离的布拉格光栅集合，以可靠地添加或分离光信道而没有串扰。 布拉格光栅组和光隔离器介于第一和第二光耦合器之间。 从WDM光信号中丢弃的光信道由第一组布拉格光栅反射，并通过第一耦合器离开分插复用器。 要添加到WDM光信号的光信道通过第二光耦合器进入分插复用器。

公开(公告)号：US5786913A

公开(公告)日：1998-07-28

申请号：US688844

申请日：1996-07-31

Applicant: Thomas Pfeiffer

Inventor： Thomas Pfeiffer

IPC: H04B10/20 ,  H04B10/213 ,  H04J3/00 ,  H04J3/08 ,  H04J14/08 ,  H04J14/00

CPC classification number: H04J14/08 ,  H04J14/083

Abstract: An optical ring network with a plurality of network elements (#1, . . . , #N) is disclosed which contains only a single laser diode (2). This laser diode (2) is controlled to produce optical pulses of constant repetition frequency. Each network element (#1, . . . , #N) includes an add-drop facility by which the optical pulses (data bits) are selectively added to or extracted from an optical data stream.

Abstract translation: 公开了一种具有多个网络元件（＃1，...，#N）的光环网络，其仅包含单个激光二极管（2）。 该激光二极管（2）被控制以产生恒定重复频率的光脉冲。 每个网络元件（＃1，...，＃N）包括添加 - 删除设备，通过该设备，光学脉冲（数据位）被选择性地添加到光学数据流或从光学数据流中提取。

公开(公告)号：US5754321A

公开(公告)日：1998-05-19

申请号：US730282

申请日：1996-10-15

Applicant: Clinton Randy Giles ,  Bernard Glance

Inventor： Clinton Randy Giles ,  Bernard Glance

IPC: G02B6/34 ,  H04B10/213 ,  H04J14/02

CPC classification number: G02B6/272 ,  G02B6/29319 ,  G02B6/29383 ,  H04J14/0201 ,  H04J14/0206 ,  H04J14/0213 ,  G02B6/2773

Abstract: An Add/Drop circuit for use in optical wavelength-division multiplexed systems includes fiber coupled four-port polarized beamsplitters and fiber Bragg grating filters.

Abstract translation: 用于光波分复用系统的加/减电路包括光纤耦合四端口偏振分束器和光纤布拉格光栅滤波器。

公开(公告)号：US5719697A

公开(公告)日：1998-02-17

申请号：US728651

申请日：1996-10-10

Applicant: Bo Pedersen

Inventor： Bo Pedersen

IPC: H01S3/10 ,  G02B6/34 ,  H04B10/04 ,  H04B10/06 ,  H04B10/14 ,  H04B10/16 ,  H04B10/17 ,  H04B10/213 ,  H04J14/00 ,  H04J14/02 ,  H01S3/00

CPC classification number: H04J14/0221 ,  H04B10/291 ,  H01S2301/04

Abstract: An optical signal processing method and apparatus for providing a noise feedback loop that uses existing noise within the optical system to saturate a chain of amplifiers after the branching unit, thereby preventing information channels in a WDM signal containing empty channels from becoming overamplified as they pass through downstream amplifiers. The method and apparatus uses an existing drop amplifier which emits ASE noise as a side effect. A coupler connects the ASE noise to a filter. The filtered ASE noise is fed into an existing trunk amplifier by a second coupler. The trunk amplifier increases gain to the filtered ASE noise to a level high enough to saturate the amplifier chain, without requiring an external noise generating device.

Abstract translation: 一种用于提供噪声反馈回路的光信号处理方法和装置，其使用光学系统内的现有噪声来使分支单元之后的放大器链饱和，从而防止包含空信道的WDM信号中的信道在它们通过时被过度放大 下游放大器。 该方法和装置使用发射ASE噪声作为副作用的现有液滴放大器。 耦合器将ASE噪声连接到滤波器。 经滤波的ASE噪声由第二耦合器馈入现有的干线放大器。 干线放大器将经过滤波的ASE噪声的增益提高到足够高的水平以使放大器链饱和，而不需要外部噪声产生装置。

公开(公告)号：US5699177A

公开(公告)日：1997-12-16

申请号：US677791

申请日：1996-07-10

Applicant: Mitsuru Yamamoto

Inventor： Mitsuru Yamamoto

IPC: H04B10/213 ,  H04J14/02 ,  H04L12/42 ,  H04N7/22 ,  H04N7/26 ,  H04Q11/00 ,  H04B10/20

CPC classification number: H04Q11/0001 ,  H04J14/0227 ,  H04J14/0241 ,  H04L12/42 ,  H04N19/63 ,  H04N7/22 ,  H04J14/0283

Abstract: A network system includes a wavelength-multiplexing transmission path for multiplexing and transmitting a plurality of wavelengths, and a plurality of terminal equipments connected to the transmission path. A transmission wavelength and a reception wavelength are assigned in advance to each of the plurality of terminal equipments. When data must be transmitted between the terminal equipments, and when a transmission wavelength of a transmission source terminal equipment as a transmission source of the data is diffenrent from a reception wavelength of a destination terminal equipment as a destination of the data, wavelength conversion is performed such that a terminal equipment located between the transmission source terminal equipment and the destination terminal equipment temporarily receives the data, and transmits the data at another wavelength.

Abstract translation: 网络系统包括用于复用和发送多个波长的波长复用传输路径，以及连接到传输路径的多个终端设备。 传输波长和接收波长预先分配给多个终端设备中的每一个。 当数据必须在终端设备之间传输时，当作为数据传输源的传输源终端设备的传输波长从作为数据目的地的目标终端设备的接收波长是不同的时，进行波长转换 使得位于发送源终端设备和目的终端设备之间的终端设备临时接收数据，并以另一波长发送数据。