公开(公告)号：US20080226292A1

公开(公告)日：2008-09-18

申请号：US10590121

申请日：2006-03-09

申请人： Weishi Li ,  Qianjin Xiong ,  Jianmei Zhang ,  Dianjun Xiao

发明人： Weishi Li ,  Qianjin Xiong ,  Jianmei Zhang ,  Dianjun Xiao

IPC分类号： H04J14/00

CPC分类号： H04L12/4641 ,  H04J14/0227 ,  H04J14/0238 ,  H04J14/0249 ,  H04J14/0283

摘要： Disclosed is a method for transmitting Ethernet service signals in a Wavelength Division Multiplexing (WDM) network, including: a Center receiving Ethernet service signals and transmitting the signals to a transmission channel; a receiving station receives the Ethernet service signals, performs a space-division cross operation upon the received signals, duplicates the signals into two copies, where one is locally downloaded while the other is returned to the transmission channel. Three devices for processing the Ethernet service signals in the WDM network are provided. With the present invention, the broadcast of the Ethernet service signals with large granularity is implemented, therefore decreasing the delay for broadcast the real-time services; besides, it is not necessary anymore to construct a overlapped network with three layers of devices, i.e. a WDM system, a Synchronous Digital Hierarchy (SDH) system and a data device, so the network structure is simplified and management is convenient.

摘要翻译： 公开了一种在波分复用（WDM）网络中发送以太网业务信号的方法，包括：中心接收以太网业务信号并将信号发送到传输信道; 接收站接收以太网服务信号，对接收到的信号执行空分交叉操作，将信号复制成两个副本，其中一个被本地下载，而另一个复制到传输信道。 提供了用于处理WDM网络中的以太网服务信号的三个设备。 利用本发明，实现了具有大粒度的以太网服务信号的广播，因此减少了广播实时业务的延迟; 此外，不再需要构造具有三层设备的重叠网络，即WDM系统，同步数字体系（SDH）系统和数据设备，因此简化了网络结构并且管理方便。

公开(公告)号：US07580635B2

公开(公告)日：2009-08-25

申请号：US11485975

申请日：2006-07-14

申请人： Weishi Li ,  Qianjin Xiong ,  Jun Luo ,  Tianhai Chang ,  Dianjun Xiao ,  Yuzhi Jin ,  Naisheng Zhang

发明人： Weishi Li ,  Qianjin Xiong ,  Jun Luo ,  Tianhai Chang ,  Dianjun Xiao ,  Yuzhi Jin ,  Naisheng Zhang

IPC分类号： H04J14/00 ,  H04B10/00

CPC分类号： H04J3/1611 ,  H04J3/1617 ,  H04J14/02

摘要： The present invention discloses an optical communication system, a sub-rate multiplexing/de-multiplexing apparatus and the method thereof such that the optical communication system could meet the demand of Metropolitan Area Network (MAN) communications using the existing optical fiber network. This optical communication system includes an optical transmitting module and an optical receiving module connected by optical fibers, wherein the optical transmitting module is used for converting the inputted electrical signals into optical signals and transferring the optical signals to the optical receiving module via optical fibers, and the optical receiving module is used for converting the received optical signals into electrical signals and outputting the electrical signals. In the optical signals transferred by optical fibers, the data transmission rate of at least one wavelength is about 5 Gb/s. One or multiple optical amplifiers may be incorporated as well between the optical transmitting module and the optical receiving module.

摘要翻译： 本发明公开了一种光通信系统，子速率复用/解复用装置及其方法，使得光通信系统能够利用现有的光纤网络满足城域网（MAN）通信的需求。 该光通信系统包括由光纤连接的光发送模块和光接收模块，其中，所述光发送模块用于将输入的电信号转换为光信号，并通过光纤将光信号传送到光接收模块，以及 光接收模块用于将接收的光信号转换为电信号并输出​​电信号。 在由光纤传送的光信号中，至少一个波长的数据传输速率约为5Gb / s。 也可以在光发送模块和光接收模块之间并入一个或多个光放大器。

公开(公告)号：US20070031148A1

公开(公告)日：2007-02-08

申请号：US11485975

申请日：2006-07-14

申请人： Weishi Ll ,  Qianjin Xiong ,  Jun Luo ,  Tianhai Chang ,  Dianjun Xiao ,  Yuzhi Jin ,  Naisheng Zhang

发明人： Weishi Ll ,  Qianjin Xiong ,  Jun Luo ,  Tianhai Chang ,  Dianjun Xiao ,  Yuzhi Jin ,  Naisheng Zhang

IPC分类号： H04J14/02

CPC分类号： H04J3/1611 ,  H04J3/1617 ,  H04J14/02

摘要： The present invention discloses an optical communication system, a sub-rate multiplexing/de-multiplexing apparatus and the method thereof such that the optical communication system could meet the demand of Metropolitan Area Network (MAN) communications using the existing optical fibre network. This optical communication system includes an optical transmitting module and an optical receiving module connected by optical fibres, wherein the optical transmitting module is used for converting the inputted electrical signals into optical signals and transferring the optical signals to the optical receiving module via optical fibres, and the optical receiving module is used for converting the received optical signals into electrical signals and outputting the electrical signals. In the optical signals transferred by optical fibres, the data transmission rate of at least one wavelength is about 5 Gb/s. One or multiple optical amplifiers may be incorporated as well between the optical transmitting module and the optical receiving module.

摘要翻译： 本发明公开了一种光通信系统，子速率复用/解复用装置及其方法，使得光通信系统能够利用现有的光纤网络满足城域网（MAN）通信的需求。 该光通信系统包括由光纤连接的光发送模块和光接收模块，其中，所述光发送模块用于将输入的电信号转换为光信号，并通过光纤将光信号传送到光接收模块，以及 光接收模块用于将接收的光信号转换为电信号并输出​​电信号。 在由光纤传送的光信号中，至少一个波长的数据传输速率约为5Gb / s。 也可以在光发送模块和光接收模块之间并入一个或多个光放大器。

公开(公告)号：US08538274B2

公开(公告)日：2013-09-17

申请号：US12815137

申请日：2010-06-14

申请人： Lijun Li ,  Qianjin Xiong

发明人： Lijun Li ,  Qianjin Xiong

IPC分类号： H04B10/02

CPC分类号： H04B10/299

摘要： An optical relay system is provided, which includes a first optical signal distribution device (101), a phase detection device (103), an amplitude regeneration device (102), and a phase regeneration and load device (104). An optical relay method is further provided, which includes the following steps. A received input signal is divided into two paths; phase information of one path of the input signal is extracted, and is converted to an amplitude modulated signal; an amplitude of the other path of the input signal is restored, so as to generate an amplitude regenerated signal; a phase is loaded on the amplitude regenerated signal by using the amplitude modulated signal, so as to generate a phase regenerated signal. The system and method eliminate a phase noise of the signal in a transmission process, improve a transmission performance of the signal, and realize a simple implementation method.

摘要翻译： 提供一种光中继系统，其包括第一光信号分配装置（101），相位检测装置（103），振幅再生装置（102）和相位再生和装载装置（104）。 还提供了一种光中继方法，其包括以下步骤。 接收到的输入信号被分成两条路径; 提取输入信号的一个路径的相位信息，并将其转换为幅度调制信号; 输入信号的另一路径的幅度被恢复，以产生振幅再生信号; 通过使用幅度调制信号在幅度再生信号上加载相位，以产生相位再生信号。 该系统和方法消除了传输过程中信号的相位噪声，提高了信号的传输性能，实现了一种简单的实现方法。

公开(公告)号：US20100166423A1

公开(公告)日：2010-07-01

申请号：US12617890

申请日：2009-11-13

申请人： Deyuan Chang ,  Yuanyuan Fang ,  Chan Zhao ,  Qianjin Xiong

发明人： Deyuan Chang ,  Yuanyuan Fang ,  Chan Zhao ,  Qianjin Xiong

IPC分类号： H04J14/06

CPC分类号： H04J14/06 ,  H04J14/0258 ,  H04J14/0276 ,  H04J14/0279

摘要： A method, device, and system for polarization division multiplexing (PDM) and polarization division demultiplexing are provided in the field of communication and transmission. The device for polarization division demultiplexing includes a polarization controller (PC), a polarization beam splitter (PBS), a detection control module, an optoelectronic receiver 1, and an optoelectronic receiver 2. The PC is adapted to receive a PDM optical signal carrying an identification signal and perform polarization control on the PDM optical signal. The PBS is adapted to perform polarization division on the PDM optical signal carrying the identification signal after the polarization control. The detection control module is adapted to perform identification signal detection on the optical signal after the polarization division to obtain a power of the identification signal, and output a polarization control signal to control the PC according to a power change of the identification signal. The optoelectronic receiver 1 and the optoelectronic receiver 2 are adapted to perform demodulation reception on an X-polarization branch optical signal and a Y-polarization branch optical signal respectively to obtain a first original signal and a second original signal. Thereby, during polarization division demultiplexing, reversal of two demultiplexed polarization branches is effectively avoided.

摘要翻译： 在通信和传输领域中提供了用于偏振分割复用（PDM）和偏振分解解复用的方法，装置和系统。 用于偏振分解解复用的装置包括偏振控制器（PC），偏振分束器（PBS），检测控制模块，光电接收器1和光电接收器2.PCI适于接收携带 识别信号，并对PDM光信号执行偏振控制。 PBS适用于在偏振控制后携带识别信号的PDM光信号上执行偏振分割。 检测控制模块，用于对偏振分割后的光信号进行识别信号检测，得到识别信号的功率，输出偏振控制信号，根据识别信号的功率变化来控制PC。 光电接收器1和光电接收器2分别适用于在X偏振分支光信号和Y偏振分支光信号上执行解调接收以获得第一原始信号和第二原始信号。 因此，在偏振分解解复用期间，有效地避免了两个解复用的偏振分支的反转。

公开(公告)号：US20110206375A1

公开(公告)日：2011-08-25

申请号：US13091843

申请日：2011-04-21

申请人： Qianjin Xiong ,  Liangchuan Li ,  Yuanda Huang

发明人： Qianjin Xiong ,  Liangchuan Li ,  Yuanda Huang

IPC分类号： H04J14/06

CPC分类号： H04B10/671 ,  H04B10/5165 ,  H04B10/676 ,  H04B2210/003 ,  H04J14/06

摘要： The method includes: splitting an optical carrier into two or more sets of optical sub-carriers at a receiving end; respectively performing optical PDM on each set of the optical sub-carriers to obtain two sets of to-be-demodulated optical signals; and extracting a part of signals from each set of the to-be-demodulated signals to calculate features characterizing polarization states, controlling feedback signals according to the features, and correspondingly adjusting a polarization state of each set of the optical sub-carriers. With the device combining optical division into two or more sets of sub-carriers with optical PDM, an optical carrier signal can be split in an optical modulation format into four or more sets of signals for processing, and delay interference can be performed directly on an optical wave by using Differential Quadrature Phase Shifted Keying (DQPSK) demodulators to obtain by detection output signals.

摘要翻译： 该方法包括：在接收端将光载波分为两组或多组光子载波; 分别在每组光子载波上执行光PDM以获得两组要解调的光信号; 并从每组待解调信号中提取一部分信号，以计算表征极化状态的特征，根据特征控制反馈信号，并相应地调整每组光子载波的极化状态。 通过将光分组合成具有光PDM的两组或多组子载波的装置，光载波信号可以以光调制格式分成四组或更多组信号进行处理，并且延迟干扰可以直接在 通过使用差分正交相移键控（DQPSK）解调器通过检测输出信号获得光波。

公开(公告)号：US20100247111A1

公开(公告)日：2010-09-30

申请号：US12815137

申请日：2010-06-14

申请人： Lijun Li ,  Qianjin Xiong

发明人： Lijun Li ,  Qianjin Xiong

IPC分类号： H04B10/00

CPC分类号： H04B10/299

摘要： An optical relay system is provided, which includes a first optical signal distribution device (101), a phase detection device (103), an amplitude regeneration device (102), and a phase regeneration and load device (104). An optical relay method is further provided, which includes the following steps. A received input signal is divided into two paths; phase information of one path of the input signal is extracted, and is converted to an amplitude modulated signal; an amplitude of the other path of the input signal is restored, so as to generate an amplitude regenerated signal; a phase is loaded on the amplitude regenerated signal by using the amplitude modulated signal, so as to generate a phase regenerated signal. The system and method eliminate a phase noise of the signal in a transmission process, improve a transmission performance of the signal, and realize a simple implementation method.

摘要翻译： 提供一种光中继系统，其包括第一光信号分配装置（101），相位检测装置（103），振幅再生装置（102）和相位再生和装载装置（104）。 还提供了一种光中继方法，其包括以下步骤。 接收到的输入信号被分成两条路径; 提取输入信号的一个路径的相位信息，并将其转换为幅度调制信号; 输入信号的另一路径的幅度被恢复，以产生振幅再生信号; 通过使用幅度调制信号在幅度再生信号上加载相位，以产生相位再生信号。 该系统和方法消除了传输过程中信号的相位噪声，提高了信号的传输性能，实现了一种简单的实现方法。

公开(公告)号：US07221872B2

公开(公告)日：2007-05-22

申请号：US10702186

申请日：2003-11-05

申请人： Heliang Liu ,  Qianjin Xiong

发明人： Heliang Liu ,  Qianjin Xiong

IPC分类号： H04B14/02 ,  H04B10/18

CPC分类号： H04B10/2519

摘要： The invention discloses an on-line dispersion compensation device for a wavelength division optical transmission system. The device is consisted of two optical path selectors and at least one chirped grating fiber unit. The chirped grating fiber unit is consisted of two chirped grating fibers with same wavelength band and connected oppositely. In addition, the chirped grating fiber unit is serially connected between the appropriate ports of the two optical path selectors. The invention applies a structure that combines a chirped grating fiber unit with two optical path selectors. The structure is suitable to on-line dispersion compensation in a DWDM system and has low insertion loss. When only a few wavelengths need to be compensated, the structure makes dispersion compensation with low cost, low insertion loss and compensating a large dispersion value. For single channel or broadband compensation, the invention provides dispersion compensation without through OADM or MUX/DEMUX filtering. For an urban area network system with rare high-speed service, the invention provides a low cost solution for dispersion compensation, and the structure of the device is suitable for structure design of the integrated waveguide dispersion compensation.

摘要翻译： 本发明公开了一种用于波分分光传输系统的在线色散补偿装置。 该装置由两个光路选择器和至少一个啁啾光栅光纤单元组成。 啁啾光栅光纤单元由具有相同波长带的两个啁啾光栅光纤组成，并相对连接。 此外，啁啾光栅光纤单元串联连接在两个光路选择器的适当端口之间。 本发明应用将啁啾光栅光纤单元与两个光路选择器组合的结构。 该结构适用于DWDM系统中的在线色散补偿，具有低插入损耗。 当仅需要补偿几个波长时，该结构便可以实现低成本，低插入损耗的色散补偿并补偿较大的色散值。 对于单通道或宽带补偿，本发明通过OADM或MUX / DEMUX滤波来提供色散补偿。 对于具有罕见的高速业务的城域网系统，本发明提供了用于色散补偿的低成本解决方案，该装置的结构适用于集成波导色散补偿的结构设计。