公开(公告)号：US07218442B2

公开(公告)日：2007-05-15

申请号：US10906759

申请日：2005-03-04

申请人： Enis Akbaba ,  John Jacob ,  Andrew Niall Robinson ,  John Zyskind ,  Erik Robert Thoen

发明人： Enis Akbaba ,  John Jacob ,  Andrew Niall Robinson ,  John Zyskind ,  Erik Robert Thoen

IPC分类号： H01S3/00 ,  H04B10/08 ,  H04B17/00

CPC分类号： H04B10/2916 ,  H04B10/075 ,  H04B10/2931

摘要： An optical communications system initiates automatic power reduction by selecting a portion of a Raman optical pumping signal from optical signals propagating on an optical fiber span. A signal related to a magnitude of the selected portion of the Raman optical pumping signal is generated. Power of at least one of the optical data signals and the optical pumping signals propagating in the optical fiber span is reduced in response to the generated signal.

摘要翻译： 光通信系统通过从在光纤跨度传播的光信号中选择拉曼光泵浦信号的一部分来启动自动功率降低。 产生与拉曼光泵浦信号的选定部分的幅度有关的信号。 响应于产生的信号，减少在光纤跨度中传播的光数据信号和光泵浦信号中的至少一个的功率。

公开(公告)号：US6157477A

公开(公告)日：2000-12-05

申请号：US85368

申请日：1998-05-27

申请人： Andrew Niall Robinson

发明人： Andrew Niall Robinson

IPC分类号： G02B6/293 ,  G02B6/34 ,  H04B10/02 ,  H04B10/18 ,  H04B10/24 ,  H04J14/08

CPC分类号： G02B6/2932 ,  G02B6/29394 ,  H04B10/2504 ,  H04B10/2519

摘要： A bidirectional chromatic dispersion system includes an optical circulator that includes four ports. A first port is coupled to a first optical transmission medium and a third port is coupled to the second optical transmission medium. A first dispersion compensating grating is coupled to a second port, and a second dispersion compensating grating is coupled to a fourth port. The first dispersion compensating grating is operative to reflect wavelengths in a first optical band, and the second dispersion compensating grating is operative to reflect wavelengths in a second optical band. The first dispersion compensating grating is substantially transparent to wavelengths in the second optical band, and the second dispersion compensating grating is substantially transparent to wavelengths in the first optical band. The first dispersion compensating grating is coupled to the second port of the optical circulator through the second dispersion compensating grating and a dispersion compensating fiber. Similarly, the second dispersion compensating grating is coupled to the fourth port through the first dispersion compensating grating and the dispersion compensating grating.

摘要翻译： 双向色散系统包括包括四个端口的光循环器。 第一端口耦合到第一光传输介质，并且第三端口耦合到第二光传输介质。 第一色散补偿光栅耦合到第二端口，第二色散补偿光栅耦合到第四端口。 第一色散补偿光栅可操作以反射第一光带中的波长，并且第二色散补偿光栅可操作以反射第二光带中的波长。 第一色散补偿光栅对于第二光带中的波长基本上是透明的，并且第二色散补偿光栅对第一光带中的波长基本上是透明的。 第一色散补偿光栅通过第二色散补偿光栅和色散补偿光纤耦合到光环行器的第二端口。 类似地，第二色散补偿光栅通过第一色散补偿光栅和色散补偿光栅耦合到第四端口。

公开(公告)号：US06317232B1

公开(公告)日：2001-11-13

申请号：US09047637

申请日：1998-03-25

申请人： John A. Fee ,  Andrew Niall Robinson

发明人： John A. Fee ,  Andrew Niall Robinson

IPC分类号： H04J1402

CPC分类号： H04B10/2971 ,  H04B10/299 ,  H04L7/0075

摘要： An all-optical system for regenerating a first optical signal carried in a first direction on an optical transmission medium and a second optical signal carried in a second direction on the optical transmission medium includes a bi-directional clock recovery loop and a bi-directional optical gate. The bi-directional clock recovery loop includes a first optical clock recovery circuit for recovering a first clock signal from the first optical signal and a second optical circuit for recovering a second clock signal from the second optical signal. The first and second optical circuits of the clock recovery loop share at least some common optical circuit elements. The bi-directional optical gate includes a first non-linear optical light mirror circuit for producing a first regenerated signal based on the first optical signal and the first clock signal and a second non-linear optical light mirror circuit for producing a second regenerated signal based on the second optical signal and the second clock signal. The first and second non-linear optical light mirror circuits share at least some common optical circuit elements.

摘要翻译： 用于再生在光传输介质上沿第一方向承载的第一光信号和在光传输介质上沿第二方向承载的第二光信号的全光系统包括双向时钟恢复环和双向光 门。 双向时钟恢复环路包括用于从第一光信号恢复第一时钟信号的第一光时钟恢复电路和用于从第二光信号恢复第二时钟信号的第二光电路。 时钟恢复环路的第一和第二光电路共享至少一些共同的光电路元件。 所述双向光栅包括：第一非线性光学镜反射电路，用于基于所述第一光信号和所述第一时钟信号产生第一再生信号;以及第二非线性光反射镜电路，用于产生基于第二再生信号的第二再生信号 在第二光信号和第二时钟信号上。 第一和第二非线性光学镜反射器电路至少共享一些共同的光电路元件。

公开(公告)号：US5822100A

公开(公告)日：1998-10-13

申请号：US670686

申请日：1996-06-26

申请人： Andrew Niall Robinson ,  John A. Fee

发明人： Andrew Niall Robinson ,  John A. Fee

IPC分类号： H04B10/18 ,  H04B10/00

CPC分类号： H04B10/2569

摘要： A polarization mode compensation system and method using optical switch elements to establish incremental delays between different polarization modes of an optical data signal is provided. A polarization mode separator separates the optical data signal into first and second orthogonally polarized optical signals. A first variable switching delay element provides a first incremental propagation delay for the first polarized optical signal. A second variable switching delay element provides a second incremental propagation delay for the second polarized optical signal. The first and second variable switching delay elements consist of a series of optical switches optically interconnected by different incremental lengths of optical fiber. For example, 2.times.2 optical switches are provided for switching between a reference fiber segment and a respective delay fiber segment to provide a relative incremental propagation delay. A controller controls optical switches in the first and second variable switching delay elements to set first and second incremental propagation delays. In particular, the first and second polarized optical signals are incrementally delayed relative to one another so as to compensate for polarization mode dispersion. A beam combiner then combines the first and second polarized optical signals to form an optical output data signal which can be detected accurately by a receiver without the effects of polarization mode dispersion. In this way, optical data signals can be reliably transmitted over greater distances along a long-haul fiber optic dispersive medium at even greater bit-rates and bandwidth.

摘要翻译： 提供了使用光开关元件在光数据信号的不同偏振模式之间建立增量延迟的偏振模补偿系统和方法。 偏振模式分离器将光学数据信号分离为第一和第二正交偏振光信号。 第一可变切换延迟元件为第一偏振光信号提供第一增量传播延迟。 第二可变切换延迟元件为第二偏振光信号提供第二增量传播延迟。 第一和第二可变开关延迟元件由一系列由不同增量长度的光纤互连的光学开关组成。 例如，提供2x2个光开关用于在参考光纤段和相应的延迟光纤段之间切换以提供相对增量的传播延迟。 控制器控制第一和第二可变切换延迟元件中的光开关以设定第一和第二增量传播延迟。 特别地，第一和第二偏振光信号相对于彼此递增地延迟，以补偿偏振模色散。 然后，光束组合器组合第一和第二偏振光信号以形成光输出数据信号，其可以由接收器精确地检测，而不会产生偏振模色散的影响。 以这种方式，光学数据信号可以以更高的比特率和带宽沿着长距离的光纤色散介质在更远的距离上被可靠地传输。

公开(公告)号：US07173756B2

公开(公告)日：2007-02-06

申请号：US10906382

申请日：2005-02-17

申请人： John Zyskind ,  Andrew Niall Robinson ,  Seo Yeon Park ,  Clement Dowd Burton ,  John Jacob ,  Erik Robert Thoen

发明人： John Zyskind ,  Andrew Niall Robinson ,  Seo Yeon Park ,  Clement Dowd Burton ,  John Jacob ,  Erik Robert Thoen

IPC分类号： H01S3/00

CPC分类号： H01S3/06758 ,  H01S3/094003 ,  H01S3/094096 ,  H01S3/1608 ,  H01S3/302 ,  H01S2301/04 ,  H04B10/2935

摘要： An optical communications system includes a plurality of optical fiber spans. An optical loss of one of the plurality of optical fiber spans is different from an optical loss of another one of the plurality of optical fiber spans. At least one of the plurality of optical fiber spans includes an optical loss that is greater than or equal to 35 dB and at least one of the plurality of optical fiber spans includes an optical loss that is less than 30 dB. An optical amplification system includes at least one discrete optical amplifier, at least one distributed optical amplifier, and an optical loss element. The optical amplification system has spectral gain that compensates for substantially all losses experienced by the optical signals propagating in the plurality of optical fiber spans.

摘要翻译： 光通信系统包括多个光纤跨段。 多个光纤跨度中的一个的光损耗不同于多个光纤跨段中的另一个的光损耗。 多个光纤跨度中的至少一个包括大于或等于35dB的光损耗，并且多个光纤跨度中的至少一个包括小于30dB的光损耗。 光放大系统包括至少一个分立光放大器，至少一个分布式光放大器和光损耗元件。 光放大系统具有光谱增益，其补偿在多个光纤跨段中传播的光信号所经历的基本上所有的损耗。

公开(公告)号：US06704510B2

公开(公告)日：2004-03-09

申请号：US09993644

申请日：2001-11-27

申请人： Andrew Niall Robinson ,  Xiaoping Charles Mao

发明人： Andrew Niall Robinson ,  Xiaoping Charles Mao

IPC分类号： H04J1402

CPC分类号： H04B10/2569

摘要： A fiber optic communications link having PMD characterization across multiple optical channels to identify PMD problems. The communications link has adaptive PMD controls employed along the optical link, whereby PMD phenomena detected by instruments, such as PMD compensators, are interpreted as being either attributable to perturbation of fiber characteristics at large, or by failure of PMD equipment along the link. The present invention avoids taking unnecessary control or maintenance actions upon PMD related controllers and compensators. PMD notifications from various PMD compensators are correlated to identify which portion of the link has undergone a change in polarization characteristics to further identify PMD related errors and problems.

摘要翻译： 一种光纤通信链路，其具有跨多个光信道的PMD表征以识别PMD问题。 通信链路具有沿着光学链路采用的自适应PMD控制，由PMD补偿器等仪器检测到的PMD现象被解释为可能归因于光纤特性的大幅度扰动，或者是沿着链路的PMD设备的故障。 本发明避免了对PMD相关控制器和补偿器的不必要的控制或维护动作。 来自各种PMD补偿器的PMD通知被相关联以识别链路的哪个部分已经经历了偏振特性的变化，以进一步识别PMD相关的误差和问题。

公开(公告)号：US06493116B1

公开(公告)日：2002-12-10

申请号：US09248521

申请日：1999-02-09

申请人： Andrew Niall Robinson ,  Xiaoping Charles Mao

发明人： Andrew Niall Robinson ,  Xiaoping Charles Mao

IPC分类号： H04B1008

CPC分类号： H04B10/2569

摘要： A fiber optic communications link having PMD characterization across multiple optical channels to identify PMD problems. The communications link has adaptive PMD controls employed along the optical link, whereby PMD phenomena detected by instruments, such as PMD compensators, are interpreted as being either attributable to perturbation of fiber characteristics at large, or by failure of PMD equipment along the link. The present invention avoids taking unnecessary control or maintenance actions upon PMD related controllers and compensators. PMD notifications from various PMD compensators are correlated to identify which portion of the link has undergone a change in polarization characteristics to further identify PMD related errors and problems.

摘要翻译： 一种光纤通信链路，其具有跨多个光信道的PMD表征以识别PMD问题。 通信链路具有沿着光学链路采用的自适应PMD控制，由PMD补偿器等仪器检测到的PMD现象被解释为可能归因于光纤特性的大幅度扰动，或者是沿着链路的PMD设备的故障。 本发明避免了对PMD相关控制器和补偿器的不必要的控制或维护动作。 来自各种PMD补偿器的PMD通知被相关联以识别链路的哪个部分已经经历了偏振特性的变化，以进一步识别PMD相关的误差和问题。

公开(公告)号：US5726788A

公开(公告)日：1998-03-10

申请号：US720477

申请日：1996-09-30

申请人： John A. Fee ,  Shoa-Kai Liu ,  Andrew Niall Robinson ,  Reddy Urimindi

发明人： John A. Fee ,  Shoa-Kai Liu ,  Andrew Niall Robinson ,  Reddy Urimindi

IPC分类号： G02B6/35 ,  G02B6/43 ,  H04B10/17 ,  H04Q11/00 ,  H04B10/00 ,  H04J14/08

CPC分类号： H04B10/2933 ,  H04Q11/0005 ,  G02B6/43 ,  H04Q2011/0049 ,  H04Q2011/0079

摘要： An optical interface device dynamically reconfigures a telecommunications network. The device includes an optically switched backplane connected between two stages of an optical tapped amplifier. Various modules may be plugged into the backplane for performing selective processing of the optical signal without any signal conversion to electrical domain. The modules are electrically controlled by a controller, which is also a module, overseeing the operations upon the optical signal by other modules.

摘要翻译： 光接口设备动态地重新配置电信网络。 该装置包括连接在光学抽头放大器的两级之间的光学开关背板。 可以将各种模块插入背板中，以执行光信号的选择性处理，而无需任何信号转换到电域。 模块由控制器电控制，控制器也是一个模块，监控其他模块对光信号的操作。