Method and system for decoding a modulated signal

    公开(公告)号:US10103816B2

    公开(公告)日:2018-10-16

    申请号:US15507928

    申请日:2015-08-12

    Inventor: Harald Rohde

    Abstract: In a method and system for decoding a differential M-ary phase or quadrature amplitude modulated signal, the incoming signal is decoded according to a plurality of different decoding rules, wherein said plurality of decoding rules correspond to different values of a resulting frequency difference or mismatch between a signal frequency and a local oscillator reference frequency. The invention allows to increase a tolerance window for the maximal allowable frequency offset, and thus helps to speed up an initial locking process or to allow for equipment which has a lower tuning granularity.

    Optical line terminal transmitting device for next generation optical access networks
    93.
    发明授权
    Optical line terminal transmitting device for next generation optical access networks 有权
    用于下一代光接入网的光线路终端发射装置

    公开(公告)号:US09461749B2

    公开(公告)日:2016-10-04

    申请号:US14127044

    申请日:2012-06-19

    CPC classification number: H04B10/5053 H04B10/272 H04B10/505

    Abstract: An Optical Line Terminal (OLT) transmitting device is provided, the device comprising an IQ modulator having a first input, a second input and an output, a first digital analog converter (DAC) directly coupled to the first input of the IQ modulator, a second digital analog converter (DAC) directly coupled to the second input of the IQ modulator; an optical filter directly coupled to the output of the IQ modulator.

    Abstract translation: 提供了一种光线路终端(OLT)发送设备,该设备包括具有第一输入,第二输入和输出的IQ调制器,直接耦合到IQ调制器的第一输入的第一数字模拟转换器(DAC), 第二数字模拟转换器(DAC),其直接耦合到IQ调制器的第二输入端; 直接耦合到IQ调制器的输出的滤光器。

    Method and arrangement for adaptive dispersion compensation
    94.
    发明授权
    Method and arrangement for adaptive dispersion compensation 有权
    自适应色散补偿的方法和布置

    公开(公告)号:US09281903B2

    公开(公告)日:2016-03-08

    申请号:US14228985

    申请日:2014-03-28

    CPC classification number: H04B10/6166 H04B10/2513 H04B10/6971 H04J14/06

    Abstract: A received optical signal is coherently demodulated and converted into electrical complex samples (p(n); (px(n), py(n)), which are dispersion compensated in a compensation filter (11). A control circuit (12, 13, 14, 15) calculates comparison values (R1, R2) from corrected samples q(n) and an estimated error value (εMIN).A plurality of compensation function (T(M)) is applied according to a predetermined dispersion (CD) range and after a second iteration is the compensation filter (11) set to an optimum compensation function (T(M)).

    Abstract translation: 接收的光信号被相干解调并转换成在补偿滤波器(11)中进行色散补偿的电复杂样本(p(n);(px(n),py(n)),控制电路 ,14,15)根据校正样本q(n)和估计误差值(&egr MIN)计算比较值(R1,R2),根据预定色散(T(M))应用多个补偿函数 CD)范围,并且在第二次迭代之后,将补偿滤波器(11)设置为最佳补偿函数(T(M))。

    Processing data in an optical network
    95.
    发明授权
    Processing data in an optical network 有权
    处理光网络中的数据

    公开(公告)号:US09178643B2

    公开(公告)日:2015-11-03

    申请号:US13985767

    申请日:2011-02-15

    Applicant: Erich Gottwald

    Inventor: Erich Gottwald

    Abstract: A method and devices for processing data in an optical network are provided, wherein a centralized component is connected to several decentralized components; wherein first data is conveyed from the centralized component to at least two decentralized components, wherein at least two decentralized components share an optical resource; and wherein second data is conveyed from the decentralized component to the decentralized component via at least one separate optical resource. Furthermore, a communication system is suggested comprising said device.

    Abstract translation: 提供了一种用于在光网络中处理数据的方法和设备,其中集中组件连接到多个分散组件; 其中第一数据从所述集中组件传送到至少两个分散组件,其中至少两个分散组件共享光资源; 并且其中第二数据经由至少一个单独的光学资源从所述分散组件传送到所述分散组件。 此外,建议包括所述设备的通信系统。

    Method and device for adjusting a laser in an optical network
    96.
    发明授权
    Method and device for adjusting a laser in an optical network 有权
    用于调整光网络中的激光的方法和装置

    公开(公告)号:US09173013B2

    公开(公告)日:2015-10-27

    申请号:US13391439

    申请日:2009-08-21

    Abstract: A method and a device for adjusting a laser in an optical network. At least one alive message is transmitted from a first optical component towards a second optical component. A confirmation message is transmitted from the second optical component to the first optical component determining the wavelength of the laser to be used based on the alive message received by the second optical component. Furthermore, an optical communication system is provided with an optical element.

    Abstract translation: 一种用于调整光网络中的激光的方法和装置。 从第一光学部件朝向第二光学部件传送至少一个活动消息。 基于由第二光学部件接收的活动消息,从第二光学部件向第一光学部件发送确定要使用的激光器的波长的确认消息。 此外,光通信系统设置有光学元件。

    Optical fiber amplifier with improved performance
    97.
    发明授权
    Optical fiber amplifier with improved performance 有权
    具有改善性能的光纤放大器

    公开(公告)号:US09054495B2

    公开(公告)日:2015-06-09

    申请号:US13508441

    申请日:2010-11-05

    Applicant: Lutz Rapp

    Inventor: Lutz Rapp

    Abstract: A method for controlling a variation in gain in an optical amplifier stage and an optical amplifier. The optical amplifier stage includes a pumping device for providing pumping power and a control unit for determining a change in an input power of the optical amplifier. The method includes the steps of determining a change in an input power of the optical amplifier, adjusting a pumping power of the pumping device to a first power level for a predetermined period of time and adjusting the pumping power of the pumping device to a second power level. The second power level is able to drive the amplifier gain to a predetermined gain value after the change in the input power occurred.

    Abstract translation: 一种用于控制光放大器级和光放大器中的增益变化的方法。 光放大器级包括用于提供泵浦功率的泵送装置和用于确定光放大器的输入功率变化的控制单元。 该方法包括以下步骤:确定光放大器的输入功率的变化,将泵送装置的泵浦功率调整到第一功率电平达预定时间段,并将泵送装置的泵浦功率调整到第二功率 水平。 在输入功率发生变化之后,第二功率电平能够将放大器增益驱动到预定的增益值。

    Processing data in an optical network element
    98.
    发明授权
    Processing data in an optical network element 有权
    处理光网络元件中的数据

    公开(公告)号:US09014573B2

    公开(公告)日:2015-04-21

    申请号:US13985532

    申请日:2012-02-13

    CPC classification number: H04B10/6164 H04B10/60

    Abstract: A method for processing data in an optical network element are provided, wherein the optical network element comprises a local oscillator operating at a first frequency; wherein an incoming data stream is received at a second frequency; wherein the incoming data steam is processed using the first frequency; wherein a first pattern is searched in the incoming data stream; wherein a second pattern is searched in the incoming data stream; and wherein the first pattern corresponds to the first frequency being in the spectrum on one side of the second frequency and the second pattern corresponds to the first frequency being in the spectrum on the other side of the second frequency. Also, a corresponding optical network element and a communication system comprising at least one such optical network element are suggested.

    Abstract translation: 提供了一种用于处理光网络元件中的数据的方法,其中所述光网络元件包括以第一频率操作的本地振荡器; 其中以第二频率接收输入数据流; 其中所述输入数据蒸汽使用所述第一频率进行处理; 其中在所述输入数据流中搜索第一模式; 其中在所述输入数据流中搜索第二模式; 并且其中所述第一图案对应于所述第一频率在所述第二频率的一侧上的频谱中,并且所述第二图案对应于在所述第二频率的另一侧上的所述频谱中的所述第一频率。 此外,提出了包括至少一个这样的光网络元件的对应的光网络元件和通信系统。

    Optical component and method for data processing
    99.
    发明授权
    Optical component and method for data processing 有权
    光学元件和数据处理方法

    公开(公告)号:US09014566B2

    公开(公告)日:2015-04-21

    申请号:US13122774

    申请日:2008-10-06

    Applicant: Erich Gottwald

    Inventor: Erich Gottwald

    CPC classification number: H04B10/60 H04B10/40 H04B10/43 H04B10/64

    Abstract: An optical component contains a tunable laser. The tunable laser provides an optical local oscillator signal, and the tunable laser is directly modulated to provide a modulated optical data signal. In this manner we have optimization of the channel wavelength and obtain an optimized electrical and optical bandwidth utilization. Furthermore, a method for data processing is suggested.

    Abstract translation: 光学部件包含可调激光器。 可调谐激光器提供光学本地振荡器信号,并且可调谐激光器被直接调制以提供调制的光学数据信号。 以这种方式,我们优化了通道波长,并获得了优化的电气和光学带宽利用率。 此外,提出了一种用于数据处理的方法。

    Data processing of an optical network element
    100.
    发明授权
    Data processing of an optical network element 有权
    光网络元件的数据处理

    公开(公告)号:US09002203B2

    公开(公告)日:2015-04-07

    申请号:US13583716

    申请日:2010-03-11

    Abstract: A method for data processing of an optical network element is provided, wherein a configuration information is received at the optical network element and a light signal is adjusted to a wavelength or wavelength range indicated by said configuration information; wherein an incoming optical signal is demodulated via the light signal and mixed as an electrical demodulated signal with a signal of an oscillator; wherein the signal of the oscillator is tuned to improve a reception of the incoming signal at the optical network element; and wherein the light signal is used for upstream modulation to provide a modulated optical upstream signal. Furthermore, an according device and a communication system are suggested including at least one such device.

    Abstract translation: 提供一种光网络元件的数据处理方法,其中在光网络元件处接收配置信息,并将光信号调整为由所述配置信息指示的波长或波长范围; 其中输入光信号经由光信号被解调并作为电解调信号与振荡器的信号混合; 其中所述振荡器的信号被调谐以改善在所述光网络元件处的输入信号的接收; 并且其中所述光信号用于上行调制以提供经调制的光上行信号。 此外,建议包括至少一个这样的设备的相关设备和通信系统。

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