公开(公告)号：US08509581B2

公开(公告)日：2013-08-13

申请号：US13077149

申请日：2011-03-31

申请人： Peter J. Winzer ,  Christopher Richard Doerr

发明人： Peter J. Winzer ,  Christopher Richard Doerr

IPC分类号： G02B6/02 ,  H04B10/12

CPC分类号： G02B6/03611 ,  G02B6/0283 ,  G02B6/0285 ,  G02B6/0288

摘要： An embodiment of an apparatus includes an optical fiber for which a complete orthogonal basis of propagating modes at an optical telecommunication frequency includes ones of the propagating modes with different angular momenta. The optical fiber has a tubular optical core and an outer optical cladding in contact with and surrounding the tubular optical core. The tubular optical core has a larger refractive index than the optical cladding. The tubular optical core is configured such that those of the propagating modes whose angular momenta have the lowest magnitude for the propagating modes have substantially the same radial intensity profile.

摘要翻译： 一种装置的实施例包括一种光纤，其中在光通信频率处的传播模式的完全正交基础包括具有不同角动量的传播模式中的一种。 光纤具有与管状光学核心接触并围绕管状光学核心的管状光学核心和外部光学包层。 管状光纤芯具有比光学包层更大的折射率。 管状光纤芯被配置为使得对于传播模式的角动量具有最低幅度的传播模式的那些基本上具有相同的径向强度分布。

公开(公告)号：US08457216B2

公开(公告)日：2013-06-04

申请号：US12751442

申请日：2010-03-31

申请人： Peter J. Winzer

发明人： Peter J. Winzer

IPC分类号： H04L27/00

CPC分类号： H04B10/07 ,  H04B10/2581 ,  H04J14/04

摘要： An apparatus includes a digital data transmitter capable of sequentially exciting different sets of one or more propagation modes in a physical communication channel. Each set of one or more propagation modes has a different spatial distribution of transmitted energy in the channel. The digital data transmitter is configured to sequentially change the excited set of one or more propagation modes to transmit a different value of data to the communication channel.

摘要翻译： 一种装置包括能够在物理通信信道中顺序激励不同组的一个或多个传播模式的数字数据发射机。 每组一个或多个传播模式在通道中具有不同的发射能量的空间分布。 数字数据发射机被配置为顺序地改变一个或多个传播模式的激励集合以将不同的数据值发送到通信信道。

公开(公告)号：US08320769B2

公开(公告)日：2012-11-27

申请号：US12492399

申请日：2009-06-26

申请人： Rene′-Jean Essiambre ,  Roland Ryf ,  Peter J. Winzer

发明人： Rene′-Jean Essiambre ,  Roland Ryf ,  Peter J. Winzer

IPC分类号： H04B10/12 ,  H04B10/00

CPC分类号： H04J14/04 ,  G02B6/14 ,  G02B6/2817 ,  G02B6/2848 ,  G02B6/34 ,  H04B10/2581 ,  H04B10/677

摘要： An optical communication system having an optical transmitter and an optical receiver optically coupled via a multi-path fiber. The optical transmitter launches, into the multi-path fiber, an optical transverse-mode-multiplexed (TMM) signal having a plurality of independently modulated components by coupling each independently modulated component into a respective transverse mode of the multi-path fiber. The TMM signal undergoes inter-mode mixing in the multi-path fiber before being received by the optical receiver. The optical receiver processes the received TMM signal to reverse the effects of inter-mode mixing and recover the data carried by each of the independently modulated components.

摘要翻译： 一种光通信系统，具有通过多路径光纤光耦合的光发射机和光接收机。 光发射机通过将每个独立调制的分量耦合到多径光纤的相应横向模式中，将具有多个独立调制分量的光学横向模式多路复用（TMM）信号发射到多径光纤中。 TMM信号在由光接收机接收之前在多路径光纤中进行模式间混合。 光接收器处理接收到的TMM信号以反转模式间混合的影响并恢复由每个独立调制的分量承载的数据。

公开(公告)号：US20120294607A1

公开(公告)日：2012-11-22

申请号：US13112147

申请日：2011-05-20

申请人： Peter J. Winzer ,  Andrew R. Chraplyvy

发明人： Peter J. Winzer ,  Andrew R. Chraplyvy

IPC分类号： H04B10/08 ,  H04J14/00 ,  G02B6/26 ,  H01S3/067 ,  G02B6/44

CPC分类号： H01S3/094061 ,  G02B6/02042 ,  G02B6/02095 ,  H01S3/06754 ,  H01S3/094096 ,  H01S3/2383 ,  H01S3/302 ,  H04B10/2912 ,  H04J14/02 ,  H04J14/04

摘要： A spatially multiplexed optical link having a plurality of transmission paths, wherein at least one transmission path is configured to carry an optical-pump signal while one or more other transmission paths carry data-bearing signals. Disposed within the optical link are an optical signal-distribution module and an amplifier module. The optical signal-distribution module is configured to couple portions of the optical-pump signal into the data-bearing transmission paths. The amplifier module is configured to amplify the data-bearing signals using these portions of the optical-pump signal as a power source in a suitable all-optical amplification scheme. The optical-pump signal can optionally be tapped and applied to a photovoltaic element configured to directly power a device, e.g., an optical performance monitor, or to charge the battery of that device to enable its autonomous operation if external electrical power is not available where the device is deployed.

摘要翻译： 一种具有多个传输路径的空间复用光链路，其中至少一个传输路径被配置为在一个或多个其它传输路径承载数据承载信号的同时承载光泵信号。 设置在光链路内的是光信号分配模块和放大器模块。 光信号分配模块被配置为将光泵信号的部分耦合到数据承载传输路径中。 放大器模块被配置为以合适的全光放大方案将光泵信号的这些部分放大为数据承载信号作为电源。 光泵信号可以可选地被抽头并且被施加到被配置为直接为设备（例如光学性能监视器）供电的光伏元件，或者对于该设备的电池进行充电，以使得其能够自主操作，如果外部电力不可用， 该设备已部署。

公开(公告)号：US08295714B2

公开(公告)日：2012-10-23

申请号：US12642765

申请日：2009-12-18

申请人： Peter J. Winzer

发明人： Peter J. Winzer

IPC分类号： H04B10/06 ,  H04B10/148 ,  H04B10/158

CPC分类号： H04B10/611 ,  H04B10/60 ,  H04B10/613 ,  H04B10/614

摘要： A digital signal processor (DSP) operating within, for example, an optical receiver wherein the DSP processes complex sample streams derived from a modulated optical signal, the DSP configured to perform a method of acquiring an intermediate frequency (IF) signal from within the received optical signal, the method comprising: processing at least one block of complex sample stream symbols using a frequency locked loop (FLL) to achieve an initial constellation lock condition, the FLL having a nominal lock-in spectral region; if an initial constellation lock condition is not achieved within a predetermined amount of time, shifting the spectral region processed by the FLL to a spectral region proximate a current operating spectral region.

摘要翻译： 在例如光接收器中操作的数字信号处理器（DSP），其中DSP处理从调制的光信号导出的复杂样本流，该DSP被配置为执行从接收到的信号中获取中频（IF）信号的方法 所述方法包括：使用频率锁定环（FLL）处理至少一个复杂采样流符号块以实现初始星座锁定状态，所述FLL具有标称锁定光谱区域; 如果在预定时间内没有实现初始星座锁定条件，则将由FLL处理的频谱区域移动到接近当前工作频谱区域的频谱区域。

公开(公告)号：US20120224861A1

公开(公告)日：2012-09-06

申请号：US13332588

申请日：2011-12-21

申请人： Peter J. Winzer ,  Gerard J. Foschini

发明人： Peter J. Winzer ,  Gerard J. Foschini

IPC分类号： H04B10/12

CPC分类号： G02B6/14 ,  H04B10/2581 ,  H04J14/04 ,  H04L1/004

摘要： The outage probability in an under-addressed optical MIMO system may be reduced by configuring a spatial-mode coupler at a transmitter and/or a spatial-mode separator at a receiver to dynamically change its spatial-mode configuration on a time scale that is shorter than the channel coherence time. Provided that the MIMO system employs an FEC code that has a sufficient error-correcting capacity for correcting the amount of errors corresponding to an average state of the MIMO channel established between the transmitter and receiver, this relatively fast dynamic change tends to reduce the frequency of events during which the number of errors per FEC-encoded block of data exceeds the error-correcting capacity of the FEC code.

摘要翻译： 可以通过在接收机处的发射机和/或空间模式分离器处配置空间模式耦合器以在较短的时间尺度上动态地改变其空间模式配置来减少处理不足的光MIMO系统中的中断概率 比通道一致性时间。 假设MIMO系统采用具有足够的纠错能力的FEC码来校正与在发射机和接收机之间建立的MIMO信道的平均状态相对应的误差量，则该相对较快的动态变化趋向于降低频率 每个FEC编码的数据块的错误数量超过FEC码的纠错能力的事件。

公开(公告)号：US20120195600A1

公开(公告)日：2012-08-02

申请号：US13018511

申请日：2011-02-01

申请人： Peter J. Winzer

发明人： Peter J. Winzer

IPC分类号： H04B10/00 ,  H04B10/13 ,  H04B10/12 ,  H04B10/135

CPC分类号： H04B10/2504

摘要： An optical transport system has an optical transmitter and an optical receiver coupled to one another via an optical link having a plurality of transmission paths. The optical transmitter uses at least one of the transmission paths to transmit an optical-reference signal that enables the optical receiver to obtain (i) an optical local-oscillator signal that is phase- and frequency-locked to an optical-carrier frequency used by the transmitter for the generation of data-bearing optical signals and (ii) a clock signal that is phase- and frequency-locked to the clock signal used by the transmitter. The optical receiver then uses these signals to demodulate and decode the data-bearing optical signals in a manner that significantly reduces the complexity of digital signal processing compared to that in a comparably performing prior-art system. In various embodiments, a transmission path for the optical-reference signal can be established using any suitable dimension orthogonal to those occupied by the data-bearing signals, such as polarization, wavelength, or space.

摘要翻译： 光传输系统具有经由具有多个传输路径的光链路彼此耦合的光发射机和光接收机。 光发射机使用传输路径中的至少一个传输光参考信号，使得光接收机能够获得（i）光本地振荡器信号，该本地振荡器信号被相位锁频到由 用于产生承载数据的光信号的发射机和（ii）与发射机使用的时钟信号相位和频率锁定的时钟信号。 然后，光接收机使用这些信号来解调和解码承载数据的光信号，其方式与显着降低数字信号处理的复杂性相比，相比于现有技术的系统。 在各种实施例中，用于光参考信号的传输路径可以使用与数据承载信号（例如偏振，波长或空间）所占据的那些正交的任何合适尺寸来建立。

公开(公告)号：US20120177065A1

公开(公告)日：2012-07-12

申请号：US13076987

申请日：2011-03-31

申请人： Peter J. Winzer

发明人： Peter J. Winzer

IPC分类号： H04L27/00 ,  H04J3/00 ,  H04J1/00

CPC分类号： H04B10/2581 ,  H04B10/07953 ,  H04B10/5053 ,  H04B10/5055 ,  H04B10/60 ,  H04B10/85 ,  H04J14/00 ,  H04J14/02 ,  H04J14/04 ,  H04J14/06

摘要： An example transmitter includes an encoder, a plurality of modulators and a spatial multiplexer. The encoder is configured to encode one or more input bit streams into a plurality of coded bit streams which are provided as output. Each modulator is configured to receive and modulate a respective one of the plurality of coded bit streams and to provide a modulated output signal. The spatial multiplexer is configured to spatially multiplex the plurality of modulated output signals for insertion on a spatially multiplexing waveguide. A modulated output signal(s) may be inserted onto a mode of a multi-mode fiber or onto a core of a multi-core fiber. In one embodiment, a subset of the plurality of spatially multiplexed modulated output signals which correspond to the one or more input bit streams must be simultaneously and spatially selectively detected in order to recover a first input bit stream.

摘要翻译： 示例性发射机包括编码器，多个调制器和空间多路复用器。 编码器被配置为将一个或多个输入比特流编码成被提供为输出的多个编码比特流。 每个调制器被配置为接收和调制多个编码比特流中的相应一个，并提供调制的输出信号。 空间多路复用器被配置为空间复用多个经调制的输出信号以插入空间复用波导。 调制输出信号可以被插入到多模光纤的模式上或多核光纤的核心上。 在一个实施例中，对应于一个或多个输入比特流的多个空间多路复用调制输出信号的子集必须同时和空间地选择性地检测，以便恢复第一输入比特流。

公开(公告)号：US20110150503A1

公开(公告)日：2011-06-23

申请号：US12642765

申请日：2009-12-18

申请人： Peter J. Winzer

发明人： Peter J. Winzer

IPC分类号： H04B10/06

CPC分类号： H04B10/611 ,  H04B10/60 ,  H04B10/613 ,  H04B10/614

摘要： A digital signal processor (DSP) operating within, for example, an optical receiver wherein the DSP processes complex sample streams derived from a modulated optical signal, the DSP configured to perform a method of acquiring an intermediate frequency (IF) signal from within the received optical signal, the method comprising: processing at least one block of complex sample stream symbols using a frequency locked loop (FLL) to achieve an initial constellation lock condition, the FLL having a nominal lock-in spectral region; if an initial constellation lock condition is not achieved within a predetermined amount of time, shifting the spectral region processed by the FLL to a spectral region proximate a current operating spectral region.

摘要翻译： 在例如光接收器中操作的数字信号处理器（DSP），其中DSP处理从调制的光信号导出的复杂样本流，该DSP被配置为执行从接收到的信号中获取中频（IF）信号的方法 所述方法包括：使用频率锁定环（FLL）处理至少一个复杂采样流符号块以实现初始星座锁定状态，所述FLL具有标称锁定光谱区域; 如果在预定时间内没有实现初始星座锁定条件，则将由FLL处理的频谱区域移动到接近当前工作频谱区域的频谱区域。

公开(公告)号：US20110150477A1

公开(公告)日：2011-06-23

申请号：US12642762

申请日：2009-12-18

申请人： Peter J. Winzer

发明人： Peter J. Winzer

IPC分类号： H04J14/06 ,  H04B10/06

CPC分类号： H04J14/06 ,  H04B10/6971

摘要： A digital signal processor (DSP) operating within, for example, an optical receiver wherein the DSP processes complex sample streams derived from a received modulated optical signal, the DSP configured to perform a method comprising: processing at least one block of symbols within a complex symbol stream to define a received constellation having symbols located within decision boundaries; and verifying that the received constellation does not exhibit errors by comparing the received constellation to each of a sequence of reference constellations having corresponding phase shifts within an angular ambiguity range of the first constellation.

摘要翻译： 在例如光接收器中操作的数字信号处理器（DSP），其中DSP处理从接收的调制光信号导出的复杂样本流，该DSP被配置为执行一种方法，包括：处理复合体内的至少一个符号块 符号流以定义具有位于决策边界内的符号的接收星座; 以及通过将接收到的星座与在第一星座的角度模糊度范围内具有对应相移的参考星座序列中的每一个进行比较来验证所接收的星座不显示错误。