公开(公告)号：US07844186B2

公开(公告)日：2010-11-30

申请号：US10815033

申请日：2004-03-31

申请人： Christophe J. Dorrer ,  Alan H. Gnauck ,  Inuk Kang ,  Chongjin Xie

发明人： Christophe J. Dorrer ,  Alan H. Gnauck ,  Inuk Kang ,  Chongjin Xie

IPC分类号： H04B10/04

CPC分类号： H04B10/5055 ,  H04B10/505 ,  H04B10/5051 ,  H04B10/532 ,  H04B10/5561

摘要： Methods and apparatus are provided for transmitting alternate-polarization phase-shift-keyed data. The output of a laser is modulated to optically encode electronic data using phase shift keying (PSK) to generate an optical signal. An alternate polarization PSK (APol-PSK) signal is generated by alternating the polarization of the optical signal using a modulator such that successive optical bits have substantially orthogonal polarizations.

摘要翻译： 提供了用于发送交替偏振相移键控数据的方法和装置。 调制激光器的输出以使用相移键控（PSK）对电子数据进行光学编码以产生光信号。 通过使用调制器交替光信号的偏振来产生交替偏振PSK（APol-PSK）信号，使得连续的光学位具有基本正交的偏振。

公开(公告)号：US20110052196A1

公开(公告)日：2011-03-03

申请号：US12583868

申请日：2009-08-27

申请人： Alan H. Gnauck ,  Chongjin Xie

发明人： Alan H. Gnauck ,  Chongjin Xie

IPC分类号： H04B10/00 ,  H04B10/06 ,  H04J14/02

CPC分类号： H04B10/50 ,  H04B10/677

摘要： System, apparatus and methods are provided for optical communication which tolerates the tight filtering effects from concatenation of reconfigurable optical add drop multiplexers (ROADMs). An exemplary system includes a receiver configured to receive a Narrow-Band Differential-Phase-Shift-Keyed (NB-DPSK) optical signal. The receiver includes a Delay Line Interferometer (DLI) with a path length difference of less than approximately one bit period and a detector for detecting DLI output to form an electrical signal. The bandwidth of the NB-DPSK optical signal is less than approximately one-half of a first bit rate of a transmitter from which the NB-DPSK optical signal is received. The electrical signal is processed to decode transmitted data. A corresponding transmitter amplifies a first input signal having a first bit rate; and drives a DPSK modulator after amplification to generate the NB-DPSK optical signal, which has a bandwidth less than approximately one-half of the first bit rate.

摘要翻译： 提供了用于光通信的系统，装置和方法，其容忍可重新配置的光分插复用器（ROADM）的级联中的紧密滤波效应。 示例性系统包括被配置为接收窄带差分相移键控（NB-DPSK）光信号的接收机。 接收机包括具有小于大约一个比特周期的路径长度差的延迟线干涉仪（DLI）和用于检测DLI输出以形成电信号的检测器。 NB-DPSK光信号的带宽小于接收NB-DPSK光信号的发射机的第一比特率的大约一半。 处理电信号以解码发送的数据。 对应的发射机放大具有第一比特率的第一输入信号; 并且在放大后驱动DPSK调制器以产生具有小于第一比特率的大约一半的带宽的NB-DPSK光信号。

公开(公告)号：US06339487B1

公开(公告)日：2002-01-15

申请号：US08823398

申请日：1997-03-24

申请人： Alan H. Gnauck ,  Xiaolin Lu ,  Sheryl Leigh Woodward

发明人： Alan H. Gnauck ,  Xiaolin Lu ,  Sheryl Leigh Woodward

IPC分类号： H04J1402

CPC分类号： H04B10/2503 ,  H04J14/0298

摘要： A bi-directional optical transmission system provides communications between at least two locations over a single optical fiber. The transmitters at the respective locations are defined to have different optical spectra characteristics to avoid production of optical beat interference.

摘要翻译： 双向光传输系统通过单个光纤提供至少两个位置之间的通信。 各个位置处的发射器被定义为具有不同的光谱特性，以避免产生光学差拍干扰。

公开(公告)号：US5532868A

公开(公告)日：1996-07-02

申请号：US311481

申请日：1994-09-23

申请人： Alan H. Gnauck ,  Robert M. Jopson

发明人： Alan H. Gnauck ,  Robert M. Jopson

IPC分类号： G02F1/35 ,  G02F2/00 ,  H04B10/02 ,  H04B10/18 ,  H04J14/00 ,  H04J14/02

CPC分类号： H04B10/2531 ,  H04B10/2543

摘要： An apparatus and method for providing dispersion compensation for chromatic dispersion introduced in the signal conversion of an optical signal. An exemplary apparatus in accordance with the present invention includes a nonlinear conversion medium arranged within an optical signal path of the optical signal. The conversion medium receives the optical signal and generates a converted optical signal therefrom. At least one dispersion compensator is arranged within the signal path to provide an amount of chromatic dispersion suitable to offset a portion of the chromatic dispersion introduced in the converted signal by the nonlinear conversion medium. The nonlinear medium may be a length of dispersion-shifted fiber used to phase conjugate and/or frequency shift an input optical signal in an optical system utilizing, for example, optical phase conjugation to cancel the effects of fiber nonlinearities. The dispersion compensator may be placed in the optical signal path either before or after the nonlinear conversion medium, or may be distributed within the medium.

摘要翻译： 一种用于在光信号的信号转换中引入的色散提供色散补偿的装置和方法。 根据本发明的示例性装置包括布置在光信号的光信号路径内的非线性转换介质。 转换介质接收光信号并从其产生转换后的光信号。 至少一个色散补偿器被布置在信号路径内，以提供适合于通过非线性转换介质偏移在转换信号中引入的色散的一部分的色散量。 非线性介质可以是色散位移光纤的长度，其用于使用例如光相位共轭来消除光纤非线性效应的光学系统中的输入光信号的相位共轭和/或频移。 色散补偿器可以在非线性转换介质之前或之后放置在光信号路径中，或者可以分布在介质内。

公开(公告)号：US07848658B2

公开(公告)日：2010-12-07

申请号：US12140992

申请日：2008-06-17

申请人： Alan H. Gnauck ,  Antonio Mecozzi ,  Mark Shtaif ,  Jay Wiesenfeld

发明人： Alan H. Gnauck ,  Antonio Mecozzi ,  Mark Shtaif ,  Jay Wiesenfeld

IPC分类号： H04B10/04

CPC分类号： H04B10/5055 ,  H04B10/2513 ,  H04B10/503 ,  H04B10/524 ,  H04L25/4906

摘要： A system and method for increasing transmission distance and/or transmission data rates using tedons and an encoding scheme to reduce the number of ones in a data signal is described. For example, the method for increasing transmission distance and transmission data rate of a fiber optical communications link using tedons includes the steps of encoding a data signal to be transmitted using an encoding scheme that reduces a number of ones in the data signal, transmitting the encoded data signal over the fiber optical communications link, receiving the encoded data signal and decoding the encoded data signal.

摘要翻译： 描述了一种用于使用训话增加传输距离和/或传输数据速率的系统和方法以及用于减少数据信号中的数目的编码方案。 例如，使用信号增加光纤通信链路的传输距离和传输数据速率的方法包括以下步骤：使用减少数据信号中的数目的编码方案对待传输的数据信号进行编码，发送编码的 数据信号通过光纤光通信链路，接收编码数据信号并解码编码数据信号。

公开(公告)号：US07580642B2

公开(公告)日：2009-08-25

申请号：US11447467

申请日：2006-06-06

申请人： Alan H. Gnauck ,  Antonio Mecozzi ,  Mark Shtaif ,  Jay Wiesenfeld

发明人： Alan H. Gnauck ,  Antonio Mecozzi ,  Mark Shtaif ,  Jay Wiesenfeld

IPC分类号： H04B10/04

CPC分类号： H04B10/5055 ,  H04B10/2513 ,  H04B10/503 ,  H04B10/524 ,  H04L25/4906

摘要： A system and method for increasing transmission distance and/or transmission data rates using tedons and an encoding scheme to reduce the number of ones in a data signal is described. For example, the method for increasing transmission distance and transmission data rate of a fiber optical communications link using tedons includes the steps of encoding a data signal to be transmitted using an encoding scheme that reduces a number of ones in the data signal, transmitting the encoded data signal over the fiber optical communications link, receiving the encoded data signal and decoding the encoded data signal.

摘要翻译： 描述了一种用于使用训话增加传输距离和/或传输数据速率的系统和方法以及用于减少数据信号中的数目的编码方案。 例如，使用信号增加光纤通信链路的传输距离和传输数据速率的方法包括以下步骤：使用减少数据信号中的数目的编码方案对待传输的数据信号进行编码，发送编码的 数据信号通过光纤光通信链路，接收编码数据信号并解码编码数据信号。

公开(公告)号：US07450850B2

公开(公告)日：2008-11-11

申请号：US11684990

申请日：2007-03-12

申请人： Charles D. Combs ,  Thomas Edward Darcie ,  Bhavesh N. Desai ,  Alan H. Gnauck ,  Xiaolin Lu ,  Esteban Sandino ,  Oleh J. Sniezko ,  Anthony G. Werner ,  Sheryl Leigh Woodward

发明人： Charles D. Combs ,  Thomas Edward Darcie ,  Bhavesh N. Desai ,  Alan H. Gnauck ,  Xiaolin Lu ,  Esteban Sandino ,  Oleh J. Sniezko ,  Anthony G. Werner ,  Sheryl Leigh Woodward

IPC分类号： H04J14/00

CPC分类号： H04J14/0226 ,  H04B10/25751 ,  H04J14/0227 ,  H04J14/0232 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282 ,  H04J14/0298 ,  H04N7/17309 ,  H04N7/22

摘要： This invention provides a new architecture for a communication system between head-ends and end-users which expands bandwidth and reliability of the communication system. A mux-node receives communication signals from a head-end and forwards the received communication signals to one or more mini-fiber nodes. The connection to the head-end is via a small number of optical fibers and the connections to each of the mini-fiber nodes may be via one or more optical fibers that may provide full duplex communication. The head-end may communicate with the mux-node using digital or digital and analog signals. The mini-fiber nodes may combine the signals received from the head-end with loop-back signals used for local media access control prior to forwarding the signals to the end-users. Upstream data are received by the mini-fiber nodes and transmitted to the mux-node. The mux-node may route upstream communication signals received from the mini-fiber nodes as downstream signals to other mini-fiber nodes also connected to the mux-node without head-end interaction.

摘要翻译： 本发明提供了一种用于头端和终端用户之间的通信系统的新架构，其扩展了通信系统的带宽和可靠性。 多路复用节点从前端接收通信信号，并将接收到的通信信号转发到一个或多个微型光纤节点。 与前端的连接是通过少量光纤，并且到每个微型光纤节点的连接可以经由可提供全双工通信的一个或多个光纤。 前端可以使用数字或数字和模拟信号与多路复用节点进行通信。 在将信号转发给最终用户之前，微型光纤节点可以组合从头端接收的信号和用于本地媒体接入控制的环回信号。 上行数据由微型光纤节点接收并发送到多路复用节点。 多路复用节点可以将从微型光纤节点接收的上行通信信号作为下行信号路由到也连接到多路复用器节点的其他微型光纤节点，而无需前端交互。

公开(公告)号：US06661976B1

公开(公告)日：2003-12-09

申请号：US09477816

申请日：2000-01-05

申请人： Alan H. Gnauck ,  Cedric F. Lam ,  Sheryl Leigh Woodward

发明人： Alan H. Gnauck ,  Cedric F. Lam ,  Sheryl Leigh Woodward

IPC分类号： H04B1004

CPC分类号： H04B10/5051 ,  H04B10/505 ,  H04B10/5055 ,  H04B10/5165 ,  H04B10/58

摘要： A method and system for generating and transmitting optical signals with only one sideband. Single-sideband optical signal transmission reduces the signal impairment effects associated with dispersion. Such transmission also increases the spectral efficiency of optical transmission systems. Single-sideband modulation also makes possible electrical compensation for optical link dispersion during transmission. Single-sideband modulation is generated using the modulating data signal and its Hilbert transform, which is approximated by a tapped-delay time filter. Line coding is used to remove the low-frequency content in the modulating data signal, avoiding the inefficiencies of tapped-delay-line filter approximated Hilbert transformers at low frequencies. Line coding can also help optical single side band signal generation and transmission using a simple optical filter instead of Hilbert transformers.

摘要翻译： 一种只用一个边带产生和传输光信号的方法和系统。 单边带光信号传输降低了与色散相关的信号损害效应。 这种传输也增加了光传输系统的频谱效率。 单边带调制还可以在传输期间对光链路色散进行电补偿。 使用由抽头延迟时间滤波器近似的调制数据信号及其希尔伯特变换产生单边带调制。 线路编码用于去除调制数据信号中的低频内容，从而避免了在低频下抽头延迟线滤波器近似希尔伯特变换器的低效率。 线路编码还可以帮助使用简单的光学滤波器而不是希尔伯特变压器进行光学单边带信号生成和传输。

公开(公告)号：US09344779B2

公开(公告)日：2016-05-17

申请号：US13602722

申请日：2012-09-04

申请人： Chandrasekhar Sethumadhavan ,  Xiang Liu ,  Peter J. Winzer ,  Alan H. Gnauck

发明人： Chandrasekhar Sethumadhavan ,  Xiang Liu ,  Peter J. Winzer ,  Alan H. Gnauck

IPC分类号： G02B6/036 ,  H04Q11/00 ,  G02B6/293 ,  H04J14/04 ,  H04J14/00 ,  H04J14/02 ,  G02B6/26 ,  G02B6/02

CPC分类号： H04Q11/0003 ,  G02B6/02042 ,  G02B6/26 ,  G02B6/29383 ,  H04J14/00 ,  H04J14/02 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/04

摘要： A space division multiplexed (SDM) transmission system that includes at least two segments of transmission media in which a spatial assignment of the two segments is different is provided. For example, the SDM transmission may include a first segment of transmission media having a first spatial assignment and a second segment of transmission media having a second spatial assignment, wherein the first spatial assignment differs from the second spatial assignment. An example method obtains an optical signal on a first segment of transmission media having a first spatial assignment and forwards the optical signal on a second segment of transmission media with a different spatial assignment. The transmission media may be a multi-core fiber (MCF), a multi-mode fiber (MMF), a few-mode fiber (FMF), or a ribbon cable comprising nominally uncoupled single-mode fiber (SMF).

摘要翻译： 提供了包括两个段的空间分配不同的至少两个传输介质段的空分复用（SDM）传输系统。 例如，SDM传输可以包括具有第一空间分配的传输介质的第一段和具有第二空间分配的传输介质的第二段，其中第一空间分配与第二空间分配不同。 示例性方法在具有第一空间分配的传输介质的第一段上获得光信号，并且在具有不同空间分配的第二传输介质段上转发光信号。 传输介质可以是多芯光纤（MCF），多模光纤（MMF），多模光纤（FMF）或包括名义上脱耦单模光纤（SMF）的带状电缆）。

公开(公告)号：US08032024B2

公开(公告)日：2011-10-04

申请号：US10734803

申请日：2003-12-12

申请人： Joseph Carmine Centanni ,  Andrew Roman Chraplyvy ,  Alan H. Gnauck ,  Robert Meachem Jopson ,  Colin J. McKinstrie ,  Stojan Radic

发明人： Joseph Carmine Centanni ,  Andrew Roman Chraplyvy ,  Alan H. Gnauck ,  Robert Meachem Jopson ,  Colin J. McKinstrie ,  Stojan Radic

IPC分类号： H04J14/00 ,  H04B10/00

CPC分类号： H04Q11/0005 ,  H04Q2011/0041

摘要： A method of multiple-band switching using a multi-pump fiber parametric switch is demonstrated. The switching architecture combines parametric band amplification, wavelength conversion and selective signal conjugation, enabled by temporal control of at least one pump of the multi-pump parametric device. The switching speed of the present invention is limited by the rise time of the controlled pump(s).

摘要翻译： 展示了使用多泵浦光纤参数开关进行多频带切换的方法。 开关架构结合了参数化频带放大，波长转换和选择性信号共轭，能够通过多泵参数化装置的至少一个泵的时间控制实现。 本发明的切换速度受到受控泵的上升时间的限制。