公开(公告)号：US20130045006A1

公开(公告)日：2013-02-21

申请号：US13564470

申请日：2012-08-01

申请人： David Jimmy DAHAN ,  Uri Mahlab

发明人： David Jimmy DAHAN ,  Uri Mahlab

IPC分类号： H04B10/08

CPC分类号： H04J14/0257 ,  H04J14/0204 ,  H04J14/0208 ,  H04J14/0212 ,  H04J14/0224 ,  H04J14/0267 ,  H04J14/0282

摘要： A method and system are provided for improving bandwidth efficiency in an optical network by dynamically utilizing unused bandwidth located around preliminarily allocated optical channels. The method comprising monitoring actual bandwidth of the preliminarily allocated optical channels incoming to a node of the optical network, reporting the monitoring results to the controller of that node and further to a network controller, receiving at that node recommendations generated by the network controller, adjusting bandwidth of one or more of the allocated optical channels thereby releasing spare bandwidth for inserting one or more additional optical channels thereat.

摘要翻译： 提供了一种通过动态地利用位于预先分配的光信道周围的未使用带宽来提高光网络带宽效率的方法和系统。 该方法包括：监视预先分配的光信道到光网络节点的实际带宽，将监测结果报告给该节点的控制器，并进一步向网络控制器报告，在该节点处接收网络控制器产生的建议，调整 一个或多个所分配的光信道的带宽，从而释放用于在其上插入一个或多个附加光信道的备用带宽。

公开(公告)号：US20120063772A1

公开(公告)日：2012-03-15

申请号：US13321545

申请日：2010-05-30

申请人： David Jimmy Dahan ,  Uri Mahlab ,  David Levy

发明人： David Jimmy Dahan ,  Uri Mahlab ,  David Levy

IPC分类号： H04B10/08

CPC分类号： H04B10/07953

摘要： For determining OSNRreal of a real optical signal carried in an optical network link, real the following has been proposed: tapping a portion of the real optical signal, altering the tapped signal portion by adding to it in-band artificial noise signal, thus obtaining a combined signal, scattering the combined signal by stimulated Brillouin or Raman scattering (SBS or SRS) in an optical element, extracting a signal back reflected by SBS/SRS from the optical element, determining OSNRcomb of the back reflected signal and deriving the OSNRreal from the OSNRcomb knowing absolute and/or relative power of the added artificial noise.

摘要翻译： 为了确定在光网络链路中承载的真实光信号的OSNRreal，实际上已经提出了以下方案：点击实际光信号的一部分，通过向其提供带内人造噪声信号来改变抽头信号部分，从而获得 组合信号，通过在光学元件中的受激布里渊或拉曼散射（SBS或SRS）散射组合信号，从光学元件提取由SBS / SRS反射的信号，确定反向反射信号的OSNRcomb并从OSNRreal导出 OSNRcomb知道所添加的人造噪声的绝对和/或相对功率。

公开(公告)号：US20100260505A1

公开(公告)日：2010-10-14

申请号：US12745948

申请日：2008-05-19

申请人： David Jimmy Dahan ,  Uri Mahlab

发明人： David Jimmy Dahan ,  Uri Mahlab

IPC分类号： H04B10/04

CPC分类号： H04B10/505 ,  H04B10/541

摘要： A simple and effective all-optical system, producing a multilevel coded optical signal based on the M-ASK technology and by the minimized equipment. The novel all-optical modulation technique for optical M-ASK generation is based on nonlinear interaction between optical signals, say between N 2-ASK modulated pump signals having extinction ratio ER1 and a single 2-ASK modulated optical probe signal having extinction ratio ER2. According to the invention, a 4-ASK optical signal can be obtained using just a single binary modulated pump optical signal and a single binary modulated probe optical signal.

摘要翻译： 一种简单有效的全光学系统，基于M-ASK技术和最小化的设备产生多级编码光信号。 用于光学M-ASK生成的新型全光调制技术基于光信号之间的非线性相互作用，例如具有消光比ER1的N 2-ASK调制泵浦信号和具有消光比ER2的单个2-ASK调制光探测器信号。 根据本发明，可以仅使用单个二进制调制泵浦光信号和单个二进制调制探测光信号来获得4-ASK光信号。

公开(公告)号：US08660426B2

公开(公告)日：2014-02-25

申请号：US13321545

申请日：2010-05-30

申请人： David Jimmy Dahan ,  Uri Mahlab ,  David Levy

发明人： David Jimmy Dahan ,  Uri Mahlab ,  David Levy

IPC分类号： H04B10/08 ,  H04B17/00

CPC分类号： H04B10/07953

摘要： For determining OSNRreal of a real optical signal carried in an optical network link, the following has been proposed: tapping a portion of the real optical signal, altering the tapped signal portion by adding to it in-band artificial noise signal, thus obtaining a combined signal, scattering the combined signal by stimulated Brillouin or Raman scattering (SBS or SRS) in an optical element, extracting a signal back reflected by SBS/SRS from the optical element, determining OSNRcomb of the back reflected signal and deriving the OSNRreal from the OSNRcomb knowing absolute and/or relative power of the added artificial noise.

摘要翻译： 为了确定在光网络链路中携带的真实光信号的OSNRreal，已经提出以下方案：点击一部分实际光信号，通过向其提供带内人造噪声信号来改变抽头信号部分，从而获得组合 信号，通过在光学元件中的受激布里渊或拉曼散射（SBS或SRS）散射组合信号，从光学元件提取由SBS / SRS反射的信号，确定反向反射信号的OSNRcomb并从OSNRcomb导出OSNRreal 知道所添加的人造噪声的绝对和/或相对功率。

公开(公告)号：US08588621B2

公开(公告)日：2013-11-19

申请号：US12745948

申请日：2008-05-19

申请人： David Jimmy Dahan ,  Uri Mahlab

发明人： David Jimmy Dahan ,  Uri Mahlab

IPC分类号： H04B10/04

CPC分类号： H04B10/505 ,  H04B10/541

摘要： A simple and effective all-optical system, producing a multilevel coded optical signal based on the M-ASK technology and by the minimized equipment. The novel all-optical modulation technique for optical M-ASK generation is based on nonlinear interaction between optical signals, say between N 2-ASK modulated pump signals having extinction ratio ER1 and a single 2-ASK modulated optical probe signal having extinction ratio ER2. According to the invention, a 4-ASK optical signal can be obtained using just a single binary modulated pump optical signal and a single binary modulated probe optical signal.

摘要翻译： 一种简单有效的全光学系统，基于M-ASK技术和最小化的设备产生多级编码光信号。 用于光学M-ASK生成的新型全光调制技术基于光信号之间的非线性相互作用，例如具有消光比ER1的N 2-ASK调制泵浦信号和具有消光比ER2的单个2-ASK调制光探测器信号。 根据本发明，可以仅使用单个二进制调制泵浦光信号和单个二进制调制探测光信号来获得4-ASK光信号。

公开(公告)号：US20120219285A1

公开(公告)日：2012-08-30

申请号：US13398969

申请日：2012-02-17

申请人： David Jimmy Dahan ,  Uri Mahlab

发明人： David Jimmy Dahan ,  Uri Mahlab

IPC分类号： H04B10/08

CPC分类号： H04B10/07953

摘要： A monitor for monitoring OSNR of data being carried via an optical network link, the monitor obtains an optical signal from the link, comprises a loop of a non-linear optical medium capable of producing a back reflected signal to the optical signal and of looping the back reflected signal; and comprises a device for extracting a portion of the looped back reflected signal from said loop. The monitor further comprises a first photodetector for measuring power of the optical signal and a second photodetector for measuring power of the extracted portion of the looped signal. Finally, there is a processing unit for determining OSNR of the optical signal based at least on readings of the first and the second photodetectors.

摘要翻译： 一种用于监视通过光网络链路传送的数据的OSNR的监视器，监视器从链路获取光信号，包括能够向光信号产生反向反射信号的非线性光学介质的环路， 反射信号; 并且包括用于从所述环路提取环回反射信号的一部分的装置。 监视器还包括用于测量光信号的功率的第一光电检测器和用于测量环路信号的提取部分的功率的第二光电检测器。 最后，存在用于基于第一和第二光电检测器的至少读取来确定光信号的OSNR的处理单元。

公开(公告)号：US08543013B2

公开(公告)日：2013-09-24

申请号：US12988069

申请日：2009-04-05

申请人： Uri Mahlab ,  Michael Gutin

发明人： Uri Mahlab ,  Michael Gutin

IPC分类号： H04B10/06

CPC分类号： H04B10/671

摘要： Technology for detecting an optical data signal carried in a combined optical signal that comprises a carrier optical signal modulated by the optical data signal and also comprises ASE noise. The proposed optical data detector/receiver is provided with an SHG device adapted to generate a second harmonic optical signal of the carrier optical signal modulated by the data signal. In the signal, generated by the SHG, the ASE noise will be essentially reduced.

摘要翻译： 用于检测包含由光数据信号调制的载波光信号的组合光信号中携带的光数据信号的技术，还包括ASE噪声。 所提出的光学数据检测器/接收器设置有适于产生由数据信号调制的载波光信号的二次谐波光信号的SHG器件。 在由SHG生成的信号中，ASE噪声将基本上减少。

公开(公告)号：US06591047B2

公开(公告)日：2003-07-08

申请号：US09780572

申请日：2001-02-12

申请人： Boris Malomed ,  Uri Mahlab

发明人： Boris Malomed ,  Uri Mahlab

IPC分类号： G02B600

CPC分类号： H04B10/2543

摘要： A method and a device for compensation of nonlinearity appearing in optical fiber links due to the positive Kerr effect created by optical fibers, the method comprises conveying an optical signal via one or more such compensating devices, each being capable of creating the negative Kerr effect for one or more optical wavelengths.

公开(公告)号：US08655186B2

公开(公告)日：2014-02-18

申请号：US13121271

申请日：2009-09-15

申请人： Uri Mahlab ,  Avi Levy

发明人： Uri Mahlab ,  Avi Levy

IPC分类号： H04B10/00 ,  H04B10/04

CPC分类号： H04B10/25133

摘要： A reconfigurable wavelength selective dispersion compensation device RWSDCD for selective compensation of dispersion in optical channels having different wavelengths. The RWSDCD comprises a controllable wavelength selective unit WSU having a plurality of local, wavelength related input/output (I/O) ports. The RWDSD also comprises a dispersion compensation cascade comprising at least one chain of successively connected dispersion compensation units DCUs, wherein one or more of the DCUs in the chain are respectively connectable to one or more of the local I/O ports. The RWSDCD outputs one or more of the incoming optical channels upon selectively compensating chromatic dispersion in them, by controllably passing these channels via one or more DCUs of the dispersion compensation cascade.

摘要翻译： 一种可重构波长选择性色散补偿装置RWSDCD，用于选择性补偿具有不同波长的光通道中的色散。 RWSDCD包括具有多个本地波长相关的输入/输出（I / O）端口的可控波长选择单元WSU。 RWDSD还包括色散补偿级联，其包括连续连接的色散补偿单元DCU的至少一个链，其中链中的一个或多个DCU可分别连接到一个或多个本地I / O端口。 通过可选地通过色散补偿级联的一个或多个DCU可控地传递这些通道，RWSDCD在选择性地补偿它们中的色散时输出一个或多个输入光通道。

公开(公告)号：US08050563B2

公开(公告)日：2011-11-01

申请号：US12282351

申请日：2007-03-08

申请人： Avi Levy ,  Uri Mahlab

发明人： Avi Levy ,  Uri Mahlab

IPC分类号： H04J14/02

CPC分类号： H04J14/0227 ,  H04J14/021

摘要： A technique is proposed for performing add/drop operations in an OADM assembly serving an optical network and comprising an add unit and a drop unit. With respect to at least one optical channel assigned to an optical wavelength λ, the OADM assembly is capable of dropping the channel from the network via the drop unit as a first signal, and adding the channel to the network via the add unit as a second signal. According to the technique, the OADM assembly additionally comprises an authentication and control unit ACU for authenticating the at least one optical channel and controlling the OADM assembly. The ACU is authenticates the optical channel by comparing one or more components of the first signal with one or more components of the second signal serving as a reference, and based on the authentication result, makes decisions whether to allow or block the dropping and/or adding of the optical channel.

摘要翻译： 提出了一种在为光网络服务的OADM组件中执行添加/删除操作并包括添加单元和丢弃单元的技术。 对于分配给光波长λ的至少一个光信道，OADM组件能够作为第一信号经由丢弃单元从网络丢弃信道，并且通过添加单元将信道添加到网络作为第二信号 信号。 根据该技术，OADM组件还包括用于认证至少一个光通道并控制OADM组件的认证和控制单元ACU。 ACU通过将第一信号的一个或多个分量与作为参考的第二信号的一个或多个分量进行比较来认证光信道，并且基于认证结果，决定是允许还是阻止丢弃和/或 添加光通道。