公开(公告)号：US08000604B2

公开(公告)日：2011-08-16

申请号：US12039981

申请日：2008-02-29

申请人： Dayou Qian ,  Junqiang Hu ,  Jianjun Yu ,  Philip Nan Ji ,  Lei Xu ,  Ting Wang ,  Milorad Cvijetic ,  Toshihiko Kusano

发明人： Dayou Qian ,  Junqiang Hu ,  Jianjun Yu ,  Philip Nan Ji ,  Lei Xu ,  Ting Wang ,  Milorad Cvijetic ,  Toshihiko Kusano

IPC分类号： H04J14/02

CPC分类号： H04L5/023 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0282 ,  H04J14/0298 ,  H04L5/0007

摘要： A passive optical network (PON) device, system and method include an optical line terminal (OLT) receiver configured to receive multiple signals at different wavelengths simultaneously and enable multiple transmitters to operate at the same time during one upstream time slot. The optical line terminal employs Orthogonal Frequency Division Multiple Access (OFDMA) to transparently support a plurality of applications and enable dynamic bandwidth allocation among these applications where the bandwidth is allocated in two dimensional frequency and time space.

摘要翻译： 无源光网络（PON）设备，系统和方法包括配置为同时接收不同波长的多个信号的光线路终端（OLT）接收机，并使得多个发射机能够在一个上行时隙同时进行操作。 光线路终端使用正交频分多址（OFDMA）来透明地支持多个应用，并且在带宽被分配在二维频率和时间空间中的这些应用中实现动态带宽分配。

公开(公告)号：US20100028002A1

公开(公告)日：2010-02-04

申请号：US12184781

申请日：2008-08-01

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

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

IPC分类号： H04J14/02

CPC分类号： H04Q11/0067 ,  H04J14/0227 ,  H04J14/025 ,  H04J14/0282 ,  H04J14/0298 ,  H04L5/0007 ,  H04L5/0037 ,  H04Q2011/0086

摘要： Implementations of the present principles include methods, systems and apparatuses for transmitting data through a sub-carrier multiplexing and orthogonal frequency-division multiple access passive optical network. In accordance with aspects of the present principles, a plurality of optical network units are assigned electrical carrier frequency bandwidths that are narrower than a system capacity bandwidth. Modulation of optical waves transmitted between an optical line terminal and each optical network unit is conducted on different orthogonal sub-carrier frequencies within the assigned bandwidths such that sampling of said orthogonal sub-carrier frequencies is limited to the assigned electrical carrier frequency bandwidths. The waves are thereafter received and demodulated for the extraction of data.

摘要翻译： 本原理的实现包括通过副载波复用和正交频分多址无源光网络传输数据的方法，系统和装置。 根据本原理的方面，多个光网络单元分配比系统容量带宽窄的电载波频率带宽。 在光线路终端和每个光网络单元之间传输的光波的调制在所分配的带宽内的不同正交子载波频率上进行，使得所述正交子载波频率的采样被限制为所分配的电载波频率带宽。 之后接收和解调波以提取数据。

公开(公告)号：US07978975B2

公开(公告)日：2011-07-12

申请号：US12184781

申请日：2008-08-01

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

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

IPC分类号： H04J14/00

CPC分类号： H04Q11/0067 ,  H04J14/0227 ,  H04J14/025 ,  H04J14/0282 ,  H04J14/0298 ,  H04L5/0007 ,  H04L5/0037 ,  H04Q2011/0086

摘要： Implementations of the present principles include methods, systems and apparatuses for transmitting data through a sub-carrier multiplexing and orthogonal frequency-division multiple access passive optical network. In accordance with aspects of the present principles, a plurality of optical network units are assigned electrical carrier frequency bandwidths that are narrower than a system capacity bandwidth. Modulation of optical waves transmitted between an optical line terminal and each optical network unit is conducted on different orthogonal sub-carrier frequencies within the assigned bandwidths such that sampling of said orthogonal sub-carrier frequencies is limited to the assigned electrical carrier frequency bandwidths. The waves are thereafter received and demodulated for the extraction of data.

摘要翻译： 本原理的实现包括通过副载波复用和正交频分多址无源光网络传输数据的方法，系统和装置。 根据本原理的方面，多个光网络单元分配比系统容量带宽窄的电载波频率带宽。 在光线路终端和每个光网络单元之间传输的光波的调制在所分配的带宽内的不同正交子载波频率上进行，使得所述正交子载波频率的采样被限制为所分配的电载波频率带宽。 之后接收和解调波以提取数据。

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：US20100028001A1

公开(公告)日：2010-02-04

申请号：US12183368

申请日：2008-07-31

申请人： Jianjun Yu ,  Lei Xu ,  Philip Nan Ji ,  Ting Wang ,  Dayou Qian ,  Yutaka Yano

发明人： Jianjun Yu ,  Lei Xu ,  Philip Nan Ji ,  Ting Wang ,  Dayou Qian ,  Yutaka Yano

IPC分类号： H04J14/00

CPC分类号： H04B10/5165 ,  H04B10/54 ,  H04B10/548 ,  H04L27/2601

摘要： A method includes generating at least two lightwave carriers from a lightwave source, the carriers having a wavelength spacing, creating an up-subchannel and a down-subchannel orthogonal to one another and spaced apart based on the fixed wavelength spacing from modulations of the lightwave carriers according to respective up-converted OFDM signals that are carrier suppressed, and combining one lightwave from the up-subchannel and one lightwave from the down-subchannel into an optical channel for transmission over an optical fiber.

摘要翻译： 一种方法包括从光波源产生至少两个光波载波，所述载波具有波长间隔，产生基于与光波载波调制的固定波长间隔彼此正交并且间隔开的向上子信道和下信道 根据载波抑制的各自的上变换的OFDM信号，并将来自上信道的一个光波和来自下信道的一个光波组合成光信道以在光纤上传输。

公开(公告)号：US08873970B2

公开(公告)日：2014-10-28

申请号：US12789943

申请日：2010-05-28

申请人： Jianjun Yu ,  Dayou Qian ,  Philip Nan Ji ,  Ting Wang

发明人： Jianjun Yu ,  Dayou Qian ,  Philip Nan Ji ,  Ting Wang

IPC分类号： H04B10/04 ,  H04B10/12 ,  H04B10/548 ,  H04J14/06

CPC分类号： H04B10/548 ,  H04J14/06

摘要： A method for generating a 400 Gb/s single channel optical signal from multiple modulated subchannels includes carving respective modulated subchannels into return-to-zero RZ modulated subchannels having non-overlapping peaks with intensity modulators having a duty cycle less than 50%, and combining the subchannels into a single channel signal aggregating the bit rate of each of the subchannels. The subchannels are combined with a flat top optical component for increased subsequent receiver sensitivity.

摘要翻译： 用于从多个调制子信道生成400Gb / s单信道光信号的方法包括将具有非重叠峰值的相应调制子信道刻蚀成具有占空比小于50％的强度调制器的归零至零RZ调制子信道，以及组合 将子信道转换成单个信道信号，聚合每个子信道的比特率。 子通道与平顶光学部件组合，以增加后续的接收灵敏度。

公开(公告)号：US20110020003A1

公开(公告)日：2011-01-27

申请号：US12789943

申请日：2010-05-28

申请人： Jianjun Yu ,  Dayou Qian ,  Philip Nan Ji ,  Ting Wang

发明人： Jianjun Yu ,  Dayou Qian ,  Philip Nan Ji ,  Ting Wang

IPC分类号： H04J14/02 ,  H04B10/04

CPC分类号： H04B10/548 ,  H04J14/06

摘要： A method for generating a 400 Gb/s single channel optical signal from multiple modulated subchannels includes carving respective modulated subchannels into return-to-zero RZ modulated subchannels having non-overlapping peaks with intensity modulators having a duty cycle less than 50%, and combining the subchannels into a single channel signal aggregating the bit rate of each of the subchannels. The subchannels are combined with a flat top optical component for increased subsequent receiver sensitivity.

摘要翻译： 用于从多个调制子信道生成400Gb / s单信道光信号的方法包括将具有非重叠峰值的相应调制子信道刻蚀成具有占空比小于50％的强度调制器的归零至零RZ调制子信道，以及组合 将子信道转换成单个信道信号，聚合每个子信道的比特率。 子通道与平顶光学部件组合，以增加后续的接收灵敏度。

公开(公告)号：US08090271B2

公开(公告)日：2012-01-03

申请号：US12236694

申请日：2008-09-24

申请人： Dayou Qian ,  Ting Wang ,  Lei Xu ,  Philip Nan Ji

发明人： Dayou Qian ,  Ting Wang ,  Lei Xu ,  Philip Nan Ji

IPC分类号： H04B10/06

CPC分类号： H04J14/06

摘要： A differential delay detection system and method includes an optical splitter to split an incoming optical signal between a first path and a second path. The first path includes a cross-polarization interferometer configured to separately generate polarization independent outputs using split paths and to generate cross-polarization interference outputs, and a polarization demultiplexer configured to combine the polarization independent outputs and the cross-polarization interference outputs from the cross-polarization interferometer with updated coefficients received from the second path to remove the cross-polarization mixed signals. The second path includes a training signal receiver configured to compute the updated coefficients and output the updated coefficients to the polarization demultiplexer.

摘要翻译： 差分延迟检测系统和方法包括：光分路器，用于在第一路径和第二路径之间分离输入光信号。 第一路径包括交叉偏振干涉仪，其被配置为使用分离路径分开产生偏振无关的输出并产生交叉极化干扰输出;以及偏振解复用器，被配置为组合来自交叉偏振干涉输出的偏振无关输出和交叉极化干扰输出， 偏振干涉仪具有从第二路径接收的更新的系数以去除交叉极化混合信号。 第二路径包括被配置为计算更新的系数并将更新的系数输出到偏振解复用器的训练信号接收器。

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：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。