公开(公告)号：US08229298B2

公开(公告)日：2012-07-24

申请号：US12269502

申请日：2008-11-12

申请人： Yue Liu ,  Lijun Li ,  Zhihui Tao ,  Wei Fu

发明人： Yue Liu ,  Lijun Li ,  Zhihui Tao ,  Wei Fu

IPC分类号： H04B10/08

CPC分类号： H04B10/07951

摘要： The present invention discloses a method for detecting dispersion, overcoming disadvantages of complex configuration and insensitivity to a tiny dispersion of the method and device for detecting dispersion in the prior art. The inventive method includes: obtaining a signal within a predetermined bandwidth range from an optical signal received; obtaining an operated value of power via an operation on the signal within the predetermined bandwidth range; and obtaining amount of system dispersion according to a corresponding relation between the operated value of power and the amount of system dispersion. A device for detecting dispersion is disclosed, including a photoelectric filter operational unit and a processing unit, where an output of the photoelectric filter operational unit is connected to an input of the processing unit. The device for detecting dispersion of the present invention is applicable to an adaptive dispersion compensation system. An optical signal transmission system is further disclosed.

摘要翻译： 本发明公开了一种检测色散的方法，克服了现有技术中用于检测色散的方法和装置的微分散的复杂配置和不敏感的缺点。 本发明的方法包括：从接收的光信号获得在预定带宽范围内的信号; 通过对所述预定带宽范围内的信号进行操作来获得功率的操作值; 并根据操作的功率值和系统色散量之间的对应关系获得系统色散量。 公开了一种用于检测色散的装置，包括光电过滤器操作单元和处理单元，其中光电过滤器操作单元的输出连接到处理单元的输入。 用于检测本发明的色散的装置可应用于自适应色散补偿系统。 进一步公开了一种光信号传输系统。

公开(公告)号：US08229299B2

公开(公告)日：2012-07-24

申请号：US13253744

申请日：2011-10-05

申请人： Yue Liu ,  Lijun Li ,  Zhihui Tao ,  Wei Fu

发明人： Yue Liu ,  Lijun Li ,  Zhihui Tao ,  Wei Fu

IPC分类号： H04B10/08

CPC分类号： H04B10/07951

摘要： The present invention discloses a method for detecting dispersion, overcoming disadvantages of complex configuration and insensitivity to a tiny dispersion of the method and device for detecting dispersion in the prior art. The inventive method includes: obtaining a signal within a predetermined bandwidth range from an optical signal received; obtaining an operated value of power via an operation on the signal within the predetermined bandwidth range; and obtaining amount of system dispersion according to a corresponding relation between the operated value of power and the amount of system dispersion. A device for detecting dispersion is disclosed, including a photoelectric filter operational unit and a processing unit, where an output of the photoelectric filter operational unit is connected to an input of the processing unit. The device for detecting dispersion of the present invention is applicable to an adaptive dispersion compensation system. An optical signal transmission system is further disclosed.

公开(公告)号：US20100014872A1

公开(公告)日：2010-01-21

申请号：US12564716

申请日：2009-09-22

申请人： Wei Fu ,  Zhihui Tao ,  Yue Liu ,  Jia Jia

发明人： Wei Fu ,  Zhihui Tao ,  Yue Liu ,  Jia Jia

IPC分类号： H04B10/00

CPC分类号： H04B10/25137 ,  H04B10/5053 ,  H04B10/5162 ,  H04B10/5165 ,  H04B2210/254

摘要： An apparatus for generating a dispersion compensation signal includes a splitting module for splitting a data signal to be transmitted into N channels of data signals; N pre-processing modules for adjusting in frequency domain the phases and amplitudes of the N channels of data signals and outputting N channels of pre-warped electrical signals; an optical carrier generating module for generating N channels of coherent optical carriers; N electro-optic modulators for modulating the N channels of coherent optical carriers based on the N channels of pre-warped electrical signals and generating N channels of pre-warped optical signals; an optical coupling module for coupling the N channels of pre-warped optical signals into a dispersion compensation optical signal. By pre-processing the data signals, the present disclosure may allow the use of existing devices to generate a dispersion compensation signal so that the bandwidth requirement set by prior art on the electrical device is reduced.

摘要翻译： 一种用于产生色散补偿信号的装置包括分割模块，用于将要发送的数据信号分割成N个数据信号通道; N个预处理模块，用于在频域中调节N个通道的数据信号的相位和幅度，并输出N个预失真的电信号; 一个用于产生N个相干光载波信道的光载波产生模块; N个电光调制器，用于基于N个预弯曲电信号通道调制相干光载波的N个信道并产生N个预弯曲光信号; 光耦合模块，用于将N个预弯曲光信号的N个通道耦合到色散补偿光信号中。 通过预处理数据信号，本公开可以允许使用现有设备来产生色散补偿信号，从而减少现有技术在电气设备上设置的带宽需求。

公开(公告)号：US20090175629A1

公开(公告)日：2009-07-09

申请号：US12403865

申请日：2009-03-13

申请人： Yue Liu ,  Wei Fu ,  Zhihui Tao

发明人： Yue Liu ,  Wei Fu ,  Zhihui Tao

IPC分类号： H04B10/12 ,  H04B10/00 ,  H04B10/04 ,  H04B10/06

CPC分类号： H04B10/25137 ,  H04B10/25133

摘要： A dispersion compensation method and a fiber transmission system are disclosed, pertaining to the field of fiber communications. The dispersion compensation method includes: after performing electrical pre-compensation processing on a digital transmit signal, the transmitting end controls the electrical/optical converting module to output a distorted optical signal; after receiving the optical signal, the receiving end performs post-compensation processing after converting the optical signal into an electrical signal, or converts the optical signal into an electrical signal after performing post-compensation processing on the optical signal. The fiber transmission system includes: a pre-compensation signal processing module, an optical source, an electrical/optical converting module, a fiber transmission line, an optical/electrical converting module, and a post-compensation processing module. With the technical solution of the present disclosure, the non-linear effect may be suppressed, and a flexible dispersion compensation solution may be provided for a dynamically configurable network.

摘要翻译： 公开了涉及光纤通信领域的色散补偿方法和光纤传输系统。 色散补偿方法包括：在对数字发送信号进行电预处理处理之后，发送端控制电/光转换模块输出失真的光信号; 在接收到光信号之后，接收端在将光信号转换成电信号之后执行后补偿处理，或者在对光信号执行后补偿处理之后将光信号转换为电信号。 光纤传输系统包括：预补偿信号处理模块，光源，电/光转换模块，光纤传输线，光/电转换模块和后补偿处理模块。 利用本公开的技术方案，可以抑制非线性效应，并且可以为可动态配置的网络提供灵活的色散补偿解决方案。

公开(公告)号：US08244141B2

公开(公告)日：2012-08-14

申请号：US12564716

申请日：2009-09-22

申请人： Wei Fu ,  Zhihui Tao ,  Yue Liu ,  Jia Jia

发明人： Wei Fu ,  Zhihui Tao ,  Yue Liu ,  Jia Jia

IPC分类号： H04B10/12 ,  H04B10/00 ,  H04B10/04

CPC分类号： H04B10/25137 ,  H04B10/5053 ,  H04B10/5162 ,  H04B10/5165 ,  H04B2210/254

摘要： An apparatus for generating a dispersion compensation signal includes a splitting module for splitting a data signal to be transmitted into N channels of data signals; N pre-processing modules for adjusting in frequency domain the phases and amplitudes of the N channels of data signals and outputting N channels of pre-warped electrical signals; an optical carrier generating module for generating N channels of coherent optical carriers; N electro-optic modulators for modulating the N channels of coherent optical carriers based on the N channels of pre-warped electrical signals and generating N channels of pre-warped optical signals; an optical coupling module for coupling the N channels of pre-warped optical signals into a dispersion compensation optical signal. By pre-processing the data signals, the present disclosure may allow the use of existing devices to generate a dispersion compensation signal so that the bandwidth requirement set by prior art on the electrical device is reduced.

摘要翻译： 一种用于产生色散补偿信号的装置包括分割模块，用于将要发送的数据信号分割成N个数据信号通道; N个预处理模块，用于在频域中调节N个通道的数据信号的相位和幅度，并输出N个预失真的电信号; 一个用于产生N个相干光载波信道的光载波产生模块; N个电光调制器，用于基于N个预弯曲电信号通道调制相干光载波的N个信道并产生N个预弯曲光信号; 光耦合模块，用于将N个预弯曲光信号的N个通道耦合到色散补偿光信号中。 通过预处理数据信号，本公开可以允许使用现有设备来产生色散补偿信号，从而减少现有技术在电气设备上设置的带宽需求。

公开(公告)号：US08594513B2

公开(公告)日：2013-11-26

申请号：US12982609

申请日：2010-12-30

申请人： Zhihui Tao

发明人： Zhihui Tao

IPC分类号： H04B10/04 ,  H03H11/26 ,  H04L27/06

CPC分类号： H04B10/505 ,  H04B10/58

摘要： A time delay adjustment method is provided, which includes the following steps. A same scrambling signal is added into two received signals. The added scrambling signals are then extracted. A delay difference between the two signals is detected according to a difference between the two extracted scrambling signals. The delay difference between the two signals is adjusted by delaying one or both of the two signals. Furthermore, a time delay adjustment device and an optical transmission apparatus are also provided. Therefore, time delay can be adjusted online, and real-time monitoring and adjustment of delay difference is also achieved.

摘要翻译： 提供了一种延时调整方法，包括以下步骤。 相同的加扰信号被加到两个接收的信号中。 然后提取加扰的加扰信号。 根据两个提取的加扰信号之间的差异来检测两个信号之间的延迟差。 通过延迟两个信号中的一个或两个来调整两个信号之间的延迟差。 此外，还提供了时间延迟调整装置和光传输装置。 因此，可以在线调整时间延迟，实现延时差异的实时监控和调整。

公开(公告)号：US08103162B2

公开(公告)日：2012-01-24

申请号：US12062309

申请日：2008-04-03

申请人： Yong Duan ,  Zhihui Tao

发明人： Yong Duan ,  Zhihui Tao

IPC分类号： H04B10/00 ,  H04J14/00

CPC分类号： H04B1/74 ,  H04B10/032 ,  H04B10/506 ,  H04J14/02 ,  H04J14/0295 ,  H04J14/0297

摘要： An optoelectronic integrated apparatus, including a plurality of working optical source links, at least one spare optical source link, at least one spare data channel, and a protection control unit for detecting whether there is any working optical source link faulty. When detecting that a working optical source link is faulty, controlling a spare optical source link whose emission wavelength is the same as the faulty working optical source link to fulfill the functions of the faulty working optical source link and switching a data signal from the working data channel to a spare data channel. The spare optical source link is adapted to modulate the optical signal using the data signal from the spare data channel, and transmits the modulated optical signal. Reliability of the optoelectronic integrated apparatus is enhanced without increasing the maintenance cost.

摘要翻译： 一种光电集成装置，包括多个工作光源链路，至少一个备用光源链路，至少一个备用数据信道和用于检测是否存在任何工作的光源链路故障的保护控制单元。 当检测到工作的光源链路故障时，控制发射波长与故障工作光源链路相同的备用光源链路，以实现故障工作光源链路的功能，并从工作数据切换数据信号 通道到备用数据通道。 备用光源链路适于使用来自备用数据信道的数据信号来调制光信号，并发送调制光信号。 增强了光电集成装置的可靠性，而不增加维护成本。

公开(公告)号：US07881618B2

公开(公告)日：2011-02-01

申请号：US11759902

申请日：2007-06-07

申请人： Cishuo Yan ,  Xinyu Xu ,  Zhihui Tao

发明人： Cishuo Yan ,  Xinyu Xu ,  Zhihui Tao

IPC分类号： H04B10/12 ,  H04B10/04

CPC分类号： H04L27/2096

摘要： System and method for m-ary phase shifting keying modulation. According to an embodiment, the present invention provides a method for performing m-ary phase-keying shift modulation. The method includes providing at least a first signal and a second signal by a signal source. The first signal and the second signal are characterized by a first signal strength level. The method also includes attenuating the second signal to provide a third signal. The second signal are characterized by a second signal strength level which is at approximate 50% of the first signal strength level. The method additionally includes coupling the first signal to a first bias voltage to provide a fourth signal. Furthermore, the method includes coupling the third signal to a second bias voltage to provide a fifth signal. The method also includes a step for providing a sixth signal by combing the fourth signal and the fifth signal.

摘要翻译： 用于多元相移键控调制的系统和方法。 根据实施例，本发明提供了一种用于执行多项相位键控移位调制的方法。 该方法包括通过信号源提供至少第一信号和第二信号。 第一信号和第二信号的特征在于第一信号强度水平。 该方法还包括衰减第二信号以提供第三信号。 第二信号的特征在于第二信号强度水平大约为第一信号强度水平的50％。 该方法还包括将第一信号耦合到第一偏置电压以提供第四信号。 此外，该方法包括将第三信号耦合到第二偏置电压以提供第五信号。 该方法还包括通过梳理第四信号和第五信号来提供第六信号的步骤。

公开(公告)号：US20100278526A1

公开(公告)日：2010-11-04

申请号：US12062309

申请日：2008-04-03

申请人： Yong Duan ,  Zhihui Tao

发明人： Yong Duan ,  Zhihui Tao

IPC分类号： H04B10/00

CPC分类号： H04B1/74 ,  H04B10/032 ,  H04B10/506 ,  H04J14/02 ,  H04J14/0295 ,  H04J14/0297

摘要： An optoelectronic integrated apparatus, including a plurality of working optical source links, at least one spare optical source link, at least one spare data channel, and a protection control unit for detecting whether there is any working optical source link faulty. When detecting that a working optical source link is faulty, controlling a spare optical source link whose emission wavelength is the same as the faulty working optical source link to fulfill the functions of the faulty working optical source link and switching a data signal from the working data channel to a spare data channel. The spare optical source link is adapted to modulate the optical signal using the data signal from the spare data channel, and transmits the modulated optical signal. Reliability of the optoelectronic integrated apparatus is enhanced without increasing the maintenance cost.

摘要翻译： 一种光电集成装置，包括多个工作光源链路，至少一个备用光源链路，至少一个备用数据信道和用于检测是否存在任何工作的光源链路故障的保护控制单元。 当检测到工作的光源链路故障时，控制发射波长与故障工作光源链路相同的备用光源链路，以实现故障工作光源链路的功能，并从工作数据切换数据信号 通道到备用数据通道。 备用光源链路适于使用来自备用数据信道的数据信号来调制光信号，并发送调制光信号。 增强了光电集成装置的可靠性，而不增加维护成本。

公开(公告)号：US20090226161A1

公开(公告)日：2009-09-10

申请号：US12398684

申请日：2009-03-05

申请人： Yong Duan ,  Zhihui Tao

发明人： Yong Duan ,  Zhihui Tao

IPC分类号： H04B10/00

CPC分类号： H04B10/032 ,  H04J14/0279 ,  H04J14/0297

摘要： A method and system for protecting integrated optoelectronic devices are disclosed. The method includes (1) providing standby light source links of fixed wavelength and their corresponding standby data channel in a transmitting-end integrated optoelectronic device; (2) detecting whether there is failure in each active light source link in the transmitting-end integrated optoelectronic device; and (3) selecting a standby light source link having a fixed wavelength and its corresponding standby data channel for accomplishing service transmission of failed active light source link and its corresponding active data channel when detecting failure of an active light source link. The system includes a transmitting-end integrated optoelectronic device and a receiving-end integrated optoelectronic device.

摘要翻译： 公开了一种用于保护集成光电子器件的方法和系统。 该方法包括（1）在发射端集成光电子装置中提供固定波长的备用光源链路及其对应的备用数据信道; （2）检测发射端集成光电子器件中每个有源光源链路是否有故障; 以及（3）选择具有固定波长的备用光源链路及其对应的备用数据信道，以在检测到主动光源链路的故障时完成故障主动光源链路及其对应的活动数据信道的业务传输。 该系统包括发射端集成光电子器件和接收端集成光电子器件。