公开(公告)号：US08169683B2

公开(公告)日：2012-05-01

申请号：US12568767

申请日：2009-09-29

申请人： Junqiang Hu ,  Yutaka Yano ,  Ting Wang

发明人： Junqiang Hu ,  Yutaka Yano ,  Ting Wang

IPC分类号： G02F1/03

CPC分类号： H04B10/508 ,  H04B10/548 ,  Y10S359/90

摘要： An apparatus includes an optical train pulse generator for generating continuous optical pulses each having a narrow width; a clock source having a high frequency for triggering the generator and operable as a sampling clock; a digital-to-analog converter DAC for converting an input signal from a digital signal processor, the DAC responsive to the sampling clock; a data modulator responsive to an amplified output from the DAC to modulate the continuous optical pulses from the train pulse generator; and a filter for removing higher frequency harmonics from the modulated continuous optical pulses out of the data modulator.

摘要翻译： 一种装置包括用于产生每个具有窄宽度的连续光脉冲的光列脉冲发生器; 具有用于触发发生器并可操作为采样时钟的高频的时钟源; 数模转换器DAC，用于转换来自数字信号处理器的输入信号，DAC响应采样时钟; 响应于来自DAC的放大输出的数据调制器来调制来自列车脉冲发生器的连续光脉冲; 以及用于从数据调制器中调制的连续光脉冲中去除更高频率谐波的滤波器。

公开(公告)号：US20100027994A1

公开(公告)日：2010-02-04

申请号：US12183346

申请日：2008-07-31

申请人： Lei Xu ,  Yutaka Yano ,  Ting Wang ,  Junqiang Hu ,  Makoto Shibutani

发明人： Lei Xu ,  Yutaka Yano ,  Ting Wang ,  Junqiang Hu ,  Makoto Shibutani

IPC分类号： H04J14/00

CPC分类号： H04J14/0298 ,  H04B10/548 ,  H04L5/12 ,  H04L27/2614 ,  H04L27/2627 ,  H04L27/2697

摘要： A method includes generating an optical orthogonal frequency division multiplexing OFDM signal with in-phase and quadrature-phase components; varying an RF carrier according to the in-phase and quadrature-phase components; and modulating a phase of a lightwave carrier according to the varied RF carrier to generate an optical OFDM signal with equalized amplitude.

摘要翻译： 一种方法包括产生具有同相和正交相分量的光正交频分复用OFDM信号; 根据同相和正交相分量改变RF载波; 以及根据变化的RF载波调制光波载波的相位以产生具有相等振幅的光OFDM信号。

公开(公告)号：US20090092393A1

公开(公告)日：2009-04-09

申请号：US12183332

申请日：2008-07-31

申请人： Lei Xu ,  Junqiang Hu ,  Ting Wang ,  Dayou Qian ,  Yutaka Yano

发明人： Lei Xu ,  Junqiang Hu ,  Ting Wang ,  Dayou Qian ,  Yutaka Yano

IPC分类号： H04J11/00 ,  H04B10/06

CPC分类号： H04L27/2647 ,  H04B10/63

摘要： A method includes producing interference between a received optical OFDM signal and an optical carrier extracted from the received optical OFDM signal to provide optical coherent detection of the received optical OFDM signal. Preferably, producing the interference includes optically splitting the received optical OFDM signal into a first part that is filtered to extract the carrier from the received optical OFDM signal and a second part similar to the received optical OFDM signal.

摘要翻译： 一种方法包括：从所接收的光学OFDM信号中提取接收到的光OFDM信号与光载波之间产生干扰，以提供所接收的光OFDM信号的光相干检测。 优选地，产生干扰包括将所接收的光学OFDM信号光学分割成被滤波的第一部分，以从接收的光学OFDM信号中提取载波，以及类似于接收的光学OFDM信号的第二部分。

公开(公告)号：US08718490B2

公开(公告)日：2014-05-06

申请号：US12183332

申请日：2008-07-31

申请人： Lei Xu ,  Junqiang Hu ,  Ting Wang ,  Dayou Qian ,  Yutaka Yano

发明人： Lei Xu ,  Junqiang Hu ,  Ting Wang ,  Dayou Qian ,  Yutaka Yano

IPC分类号： H04B10/61

CPC分类号： H04L27/2647 ,  H04B10/63

摘要： A method includes producing interference between a received optical OFDM signal and an optical carrier extracted from the received optical OFDM signal to provide optical coherent detection of the received optical OFDM signal. Preferably, producing the interference includes optically splitting the received optical OFDM signal into a first part that is filtered to extract the carrier from the received optical OFDM signal and a second part similar to the received optical OFDM signal.

摘要翻译： 一种方法包括：从所接收的光学OFDM信号中提取接收到的光OFDM信号与光载波之间产生干扰，以提供所接收的光OFDM信号的光相干检测。 优选地，产生干扰包括将所接收的光学OFDM信号光学分割成被滤波的第一部分，以从接收的光学OFDM信号中提取载波，以及类似于接收的光学OFDM信号的第二部分。

公开(公告)号：US20110075242A1

公开(公告)日：2011-03-31

申请号：US12568767

申请日：2009-09-29

申请人： Junqiang Hu ,  Yutaka Yano ,  Ting Wang

发明人： Junqiang Hu ,  Yutaka Yano ,  Ting Wang

IPC分类号： G02F1/01

CPC分类号： H04B10/508 ,  H04B10/548 ,  Y10S359/90

摘要： An apparatus includes an optical train pulse generator for generating continuous optical pulses each having a narrow width; a clock source having a high frequency for triggering the generator and operable as a sampling clock; a digital-to-analog converter DAC for converting an input signal from a digital signal processor, the DAC responsive to the sampling clock; a data modulator responsive to an amplified output from the DAC to modulate the continuous optical pulses from the train pulse generator; and a filter for removing higher frequency harmonics from the modulated continuous optical pulses out of the data modulator.

摘要翻译： 一种装置包括用于产生每个具有窄宽度的连续光脉冲的光列脉冲发生器; 具有用于触发发生器并可操作为采样时钟的高频的时钟源; 数模转换器DAC，用于转换来自数字信号处理器的输入信号，DAC响应采样时钟; 响应于来自DAC的放大输出的数据调制器来调制来自列车脉冲发生器的连续光脉冲; 以及用于从数据调制器中调制的连续光脉冲中去除更高频率谐波的滤波器。

公开(公告)号：US08781326B2

公开(公告)日：2014-07-15

申请号：US13437139

申请日：2012-04-02

申请人： Junqiang Hu ,  Dayou Qian ,  Ting Wang

发明人： Junqiang Hu ,  Dayou Qian ,  Ting Wang

IPC分类号： H04B14/00 ,  H04B10/00 ,  H04B10/548 ,  H04B10/60

CPC分类号： H04B10/548 ,  H04B10/60 ,  H04L27/2697

摘要： An energy efficient OFDM transceiver includes a transmitter using a decision processor to control first internal elements that can be operated in parallel and can be selectively powered off or hibernated, and a receiver using a processing decision element to control second internal elements that can be operated in parallel and can be selectively powered off or hibernated, wherein control of the first and second internal elements enables tracking status of network traffic, adjustment of OFDM bandwidth based on a traffic decision and selectively powering off or hibernating parallel ones of the first and second internal elements.

摘要翻译： 节能OFDM收发器包括使用决策处理器来控制可以并行操作并且可以选择性地关闭或休眠的第一内部元件的发射机，以及使用处理决策元件来控制可以在 并联并且可以选择性地关闭或休眠，其中第一和第二内部元件的控制使得能够跟踪网络业务的状态，基于业务决策来调整OFDM带宽，并且选择性地关闭或休眠第一和第二内部元件中的并行 。

公开(公告)号：US20110069954A1

公开(公告)日：2011-03-24

申请号：US12566317

申请日：2009-09-24

申请人： Junqiang Hu ,  Ting Wang ,  Dayou Qian ,  Philip Nan Ji

发明人： Junqiang Hu ,  Ting Wang ,  Dayou Qian ,  Philip Nan Ji

IPC分类号： H04J14/00

CPC分类号： H04Q11/0067 ,  H04Q2011/0081

摘要： There is provided an optical network apparatus having interconnected processing gigabit passive optical network G-PON blades, a protection blade, and controller blade, the regular blades and protecting blade having a higher layer processing and switching interface to a G-PON media access control MAC coupled to PHY including serializer and de-serializer modules that are connected to respective interface modules, the improvement including a protecting 1:N signal drive and a protecting N:1 signal select driver coupled between the interface module and serializer and de-serializer modules of the protecting blade, respectively, for protecting connection to the interface module of the protecting blade. The improvement further includes a processing 1:N signal driver and a processing N:1 signal select driver coupled between the interface module and serializer and de-serializer modules of the processing G-PON blade, respectively, for protecting connection to the interface module of the processing G-PON blade and a 1:2 signal driver and 2:1 signal select driver in the interface module for providing an alternative connection to the protection blade.

摘要翻译： 提供了具有互连处理千兆无源光网络G-PON刀片，保护刀片和控制器刀片的光网络设备，正常刀片和保护刀片具有到G-PON媒体访问控制MAC的更高层处理和交换接口 耦合到PHY，包括连接到相应接口模块的串行器和解串器器模块，改进包括保护1：N信号驱动器和耦合在接口模块和串行器之间的保护N：1信号选择驱动器和解串器器模块 保护刀片分别用于保护与保护刀片的接口模块的连接。 该改进还包括处理1：N信号驱动器和耦合在接口模块和串行器之间的处理N：1信号选择驱动器和处理G-PON刀片的解串器器模块，用于保护与接口模块的连接 在接口模块中处理G-PON刀片和1：2信号驱动器和2：1信号选择驱动器，以提供与保护刀片的替代连接。

公开(公告)号：US08718474B2

公开(公告)日：2014-05-06

申请号：US13267131

申请日：2011-10-06

申请人： Dayou Qian ,  Junqiang Hu ,  Ting Wang ,  Yoshiaki Aono ,  Tsutomu Tajima

发明人： Dayou Qian ,  Junqiang Hu ,  Ting Wang ,  Yoshiaki Aono ,  Tsutomu Tajima

IPC分类号： H04B10/00 ,  H04J14/02 ,  H04B10/04

CPC分类号： H04B10/25133

摘要： Methods and devices for compensating for chromatic dispersion are shown that include receiving an input data signal, applying a filter to the data signal, and outputting a CD compensated signal. Applying the filter includes convolving known filter coefficients with a plurality of delayed versions of the data signal using addition and at least one inverse sign operation or using lookup tables and combining outputs to produce a CD compensated signal.

摘要翻译： 示出了用于补偿色散的方法和装置，其包括接收输入数据信号，向数据信号施加滤波器，以及输出CD补偿信号。 应用滤波器包括使用加法和至少一个逆符号操作或使用查找表并组合输出以产生CD补偿信号的具有多个延迟版本的数据信号的已知滤波器系数。

公开(公告)号：US08699640B2

公开(公告)日：2014-04-15

申请号：US12630167

申请日：2009-12-03

申请人： Junqiang Hu ,  Dung-Huy Han ,  Ting Wang

发明人： Junqiang Hu ,  Dung-Huy Han ,  Ting Wang

IPC分类号： H04L25/08

CPC分类号： H04L27/2649 ,  H04L25/0307 ,  H04L25/03159 ,  H04L27/223 ,  H04L27/2697 ,  H04L2025/03388 ,  H04L2025/03414

摘要： A method by an optical OFDM receiver includes converting a received optical signal to an electrical signal, deriving a digital signal from the electrical signal, and emulating, with an iterative OFDM demodulator responsive to the digital signal, a transmitter effect in the received signal of lower peak clipping and top peak distortion and applying the transmitter effect to the received signal and a decision-made signal for estimating an error function to be applied to a demodulation of the received optical signal.

摘要翻译： 光OFDM接收机的方法包括将接收到的光信号转换为电信号，从电信号导出数字信号，并用响应于数字信号的迭代OFDM解调器仿真接收信号中的发射机效应较低 峰值限幅和顶峰失真，并将发送器效应应用于接收信号，以及用于估计要应用于所接收的光信号的解调的误差函数的决定信号。

公开(公告)号：US08233809B2

公开(公告)日：2012-07-31

申请号：US12607125

申请日：2009-10-28

申请人： Dayou Qian ,  Ting Wang ,  Kai Yang ,  Junqiang Hu

发明人： Dayou Qian ,  Ting Wang ,  Kai Yang ,  Junqiang Hu

IPC分类号： H04B10/06

CPC分类号： H04J14/002 ,  H04B10/2513 ,  H04B10/60 ,  H04B10/6161 ,  H04B10/6162 ,  H04J14/06

摘要： A method for the polarization independent frequency domain equalization (FDE) chromatic dispersion compensation on polarization multiplexing (POLMUX) coherent systems. Operationally, time domain signals are converted to frequency domain signals such that time domain convolution can be done as simple multiplications in the frequency domain. These frequency domain signals then converted back to time domain for subsequent use. The input signal size and FFT size are advantageously designed so that the output signals can be continuous with some overlap between two successive frames.

摘要翻译： 一种用于偏振复用（POLMUX）相干系统上的偏振独立频域均衡（FDE）色散补偿的方法。 在操作上，时域信号被转换成频域信号，使得时域卷积可以作为频域中的简单乘法来完成。 然后，这些频域信号被转换回到时域以供后续使用。 有利地设计输入信号尺寸和FFT尺寸，使得输出信号可以是连续的，在两个连续帧之间具有一些重叠。