Protected optical single-fiber WDM system
    11.
    发明授权
    Protected optical single-fiber WDM system 有权
    保护光纤单纤WDM系统

    公开(公告)号:US09369227B2

    公开(公告)日:2016-06-14

    申请号:US14180295

    申请日:2014-02-13

    Abstract: A first and second head-end terminal and at least one optical add/drop filter device are connected to form a transmission path. Each head-end terminal is connected through an optical fiber to a western or eastern WDM port of an adjacent optical add/drop filter device, and each optical add/drop filter device is connected, at an eastern or western WDM port, to a western or eastern WDM port of an adjacent optical add/drop filter device. At least one tail-end terminal is connected to each optical add/drop filter device, wherein a first and second channel port of the respective add/drop tail-end terminal is connected to a dedicated first and second channel port of the optical add/drop filter device through a respective optical fiber. The head-end terminals, the optical add/drop filter devices, and the tail-end terminals are adapted to establish bidirectional communication between each tail-end terminal and the first and second head-end terminal.

    Abstract translation: 连接第一和第二头端终端和至少一个光学分插滤波器装置以形成传输路径。 每个头端终端通过光纤连接到相邻光分插滤波器装置的西或东WDM端口,并且每个光分插滤波器装置在东部或西部WDM端口连接到西部 或相邻光分插滤波器装置的东WDM端口。 至少一个尾端终端连接到每个光分插滤波器装置,其中相应分插尾端终端的第一和第二通道端口连接到光添加/分接滤波器装置的专用第一和第二通道端口, 通过相应的光纤进行放大滤波器。 前端终端,光分插滤波器装置和尾端终端适于在每个尾端终端与第一和第二头端终端之间建立双向通信。

    Method, system, and transceiver device for bi-directionally transmitting digital optical signals over an optical transmission link
    12.
    发明授权
    Method, system, and transceiver device for bi-directionally transmitting digital optical signals over an optical transmission link 有权
    用于通过光传输链路双向传输数字光信号的方法,系统和收发器设备

    公开(公告)号:US09294192B2

    公开(公告)日:2016-03-22

    申请号:US14329119

    申请日:2014-07-11

    Abstract: A method for bi-directionally transmitting digital optical signals over an optical transmission link in which a first optical transmit signal is created according to a first binary digital signal in such a way that the bit information of the first binary digital signal is included in first sections of the symbol interval of the first optical transmit signal. A second optical transmit signal is created by creating an optical wavelength reuse signal using the first optical transmit signal received at the second end of the optical transmission link, the optical wavelength reuse signal being modulated according to a second digital signal in such a way that the bit information of the second digital signal is included in second sections of the symbol interval of the first optical transmit signal received.

    Abstract translation: 一种用于通过光传输链路双向传输数字光信号的方法,其中根据第一二进制数字信号产生第一光发射信号,使得第一二进制数字信号的比特信息包括在第一部分中 的第一光发射信号的符号间隔。 通过使用在光传输链路的第二端接收的第一光发射信号创建光波长重用信号来创建第二光发射信号,光波长重用信号根据第二数字信号被调制,使得 第二数字信号的位信息被包括在接收的第一光发送信号的符号间隔的第二部分中。

    Method and tuning device for tuning a tunable optical transmitter to a predetermined target wavelength
    14.
    发明授权
    Method and tuning device for tuning a tunable optical transmitter to a predetermined target wavelength 有权
    用于将可调光发射机调谐到预定目标波长的方法和调谐装置

    公开(公告)号:US09473246B2

    公开(公告)日:2016-10-18

    申请号:US14704046

    申请日:2015-05-05

    CPC classification number: H04B10/506 H04B10/572 H04B17/11 H04J14/02

    Abstract: A method for tuning a tunable optical transmitter to a target wavelength includes applying at least one tuning signal to the tunable optical transmitter to control the tunable optical transmitter to create an optical calibration signal according to nominal tuning information for the tunable optical transmitter. The optical calibration signal has a wavelength lying within a secure wavelength range, and the nominal tuning information is based on a nominal wavelength dependency for the tunable optical transmitter. The method also includes measuring a deviation between an actual wavelength dependency of the tunable optical transmitter and the nominal wavelength dependency, and determining calibration information based on that deviation. The calibration information is applied to determine a corrected nominal wavelength dependency from which target tuning information is determined. The tunable optical transmitter is controlled to create an optical channel signal according to the target tuning information.

    Abstract translation: 用于将可调光发射机调谐到目标波长的方法包括将至少一个调谐信号施加到可调谐光发射机,以根据可调谐光发射机的标称调谐信息来控制可调光发射机产生光学校准信号。 光学校准信号具有位于安全波长范围内的波长,标称调谐信息基于可调光发射机的标称波长依赖性。 该方法还包括测量可调光发射机的实际波长依赖性与标称波长依赖性之间的偏差,以及基于该偏差来确定校准信息。 应用校准信息来确定确定目标调谐信息的校正的标称波长依赖性。 根据目标调谐信息,控制可调光发射机产生光通道信号。

    Optical network element and optical transmission system
    15.
    发明授权
    Optical network element and optical transmission system 有权
    光网元和光传输系统

    公开(公告)号:US09166725B2

    公开(公告)日:2015-10-20

    申请号:US14314399

    申请日:2014-06-25

    Abstract: The invention relates to an optical network element, particularly an optical line terminal, OLT, for transmitting and receiving signals wire an optical network that comprises at least one optical fiber link and at least one further optical network element. The optical network element provides a primary optical pumping mean for emitting optical pump power to set at least one optical fiber link. The emitted optical pump power forms at least one gain medium outside the optical network element to provide optical pump power to the network for amplifying the singles to receive so that outside of the domain of the optical network element no electrical energy supply is needed.

    Abstract translation: 本发明涉及光网络元件,特别是用于发射和接收信号的光网络终端OLT,其包括至少一个光纤链路和至少一个另外的光网络元件的光网络。 光网络元件提供用于发射光泵浦功率以设置至少一个光纤链路的初级光泵浦平均值。 所发射的光泵浦功率在光网络元件外部形成至少一个增益介质,以向网络提供光泵浦功率,用于放大单个接收,使得光网络元件的域外不需要电能供应。

    Passive Optical Network and Optical Line Terminal
    16.
    发明申请
    Passive Optical Network and Optical Line Terminal 审中-公开
    无源光网络和光线路终端

    公开(公告)号:US20150244494A1

    公开(公告)日:2015-08-27

    申请号:US14616575

    申请日:2015-02-06

    Inventor: Klaus Grobe

    Abstract: A passive optical network comprises at least two optical line terminals (OLTs), a remote node (RN), and a plurality of optical node units (ONUs). Each OLT has a WDM working port, the RN has a number M WDM ports and a number N distribution ports, and each ONU has a communication port. Each OLT WDM working port is connected to a dedicated RN WDM port by a respective working feeder fiber, and each ONU communication port is connected to a dedicated RN distribution port by a respective distribution fiber. The RN comprises a passive optical filter device having a spectral and spatial filter property of an M×N arrayed waveguide grating and defining the M WDM ports and the N distribution ports. Each OLT communicates to a respective ONU using optical channel signals at a downstream wavelength defined by the passive optical filter device making up the RN.

    Abstract translation: 无源光网络包括至少两个光线路终端(OLT),远程节点(RN)和多个光节点单元(ONU)。 每个OLT都有一个WDM工作端口,RN具有M个WDM端口和N个分配端口,每个ONU都有一个通信端口。 每个OLT WDM工作端口通过相应的工作馈线光纤连接到专用的RN WDM端口,并且每个ONU通信端口通过相应的分配光纤连接到专用的RN分配端口。 RN包括具有M×N阵列波导光栅的频谱和空间滤波特性并定义M个WDM端口和N个分配端口的无源光学滤波器装置。 每个OLT使用由构成RN的无源光学滤波器装置限定的下行波长的光信道信号与相应的ONU进行通信。

    Method of Operating a Primary Optical Node and a Secondary Optical Node
    17.
    发明申请
    Method of Operating a Primary Optical Node and a Secondary Optical Node 有权
    操作主光节点和次光节点的方法

    公开(公告)号:US20130336655A1

    公开(公告)日:2013-12-19

    申请号:US13896839

    申请日:2013-05-17

    Abstract: The invention relates to a method of operating a primary optical node, particularly an optical line terminal (OLT), for an optical communications system, wherein said OLT is configured to receive at least one upstream optical signal (uos) from at least one secondary optical node, particularly an optical networking unit (ONU), within at least a first wavelength range (wr1), and to transmit at least one downstream optical signal (dos) to said at least one ONU within at least a second wavelength range (wr2), wherein said OLT determines a currently unused wavelength subrange (wsr2) within said first wavelength range (wr1), assigns a specific target wavelength (λt) within said currently unused wavelength subrange (wsr2) to said ONU, signals said target wavelength (λt) to said ONU, receives an upstream signal (us) from said ONU, and provides feedback information to said ONU.

    Abstract translation: 本发明涉及一种操作用于光通信系统的主光节点,特别是光线路终端(OLT)的方法,其中所述OLT被配置为从至少一个辅助光接收器接收至少一个上行光信号(uos) 在至少第一波长范围(wr1)内,尤其是光网络单元(ONU)的节点,尤其是光网络单元(ONU),并且在至少第二波长范围(wr2)内向至少一个ONU发送至少一个下行光信号(dos) ,其中所述OLT确定所述第一波长范围(wr1)内的当前未使用的波长子范围(wsr2),将所述当前未使用的波长子范围(wsr2)内的特定目标波长(lambdat)分配给所述ONU,信号所述目标波长(lambdat) 向所述ONU接收来自所述ONU的上行信号(us),并向所述ONU提供反馈信息。

    METHOD AND APPARATUS FOR PROVIDING END-TO-END OPTICAL SPECTRUM SERVICES OVER MULTIPLE TRANSPARENT OPTICAL NETWORK DOMAINS

    公开(公告)号:US20230318731A1

    公开(公告)日:2023-10-05

    申请号:US18075405

    申请日:2022-12-05

    CPC classification number: H04J14/0278 H04J14/0245

    Abstract: A transparent optical overlay network (1) for providing end-to-end optical spectrum services over multiple transparent optical network domains (2) is described. The transparent optical overlay network (1) includes network domain interface devices, NDIDs, (3) provided at domain boundaries between adjacent transparent optical network domains (2). The network domain interface device, NDID (3), monitors and adjusts incoming optical signals received by the NDID (3) from a first transparent optical network domain (2-1) and monitors and adjusts outgoing optical signals output by the NDID (3) to an adjacent second transparent optical network domain (2-2). An overlay network controller (5) manages and controls the end-to-end optical spectrum services by controlling the NDIDs (3). The overlay network controller collects telemetry data (TDATA) for optical spectrum service characterization and SLA policing of the optical spectrum services.

    Method and apparatus for performing spectrometric measurements

    公开(公告)号:US11624707B2

    公开(公告)日:2023-04-11

    申请号:US17209943

    申请日:2021-03-23

    Abstract: An apparatus adapted to perform spectrometric measurements, said apparatus comprising a tunable laser light source adapted to generate a laser light with an excitation wavelength supplied to an optical sensor which produces a sample specific response light signal; an optical reference filter adapted to measure laser light with the excitation wavelength fed back as a reference signal to provide wavelength calibration of the tunable laser light source; at least one optical measurement filter adapted to measure the sample specific response light signal produced by the optical sensor, wherein the optical reference filter and the at least one optical measurement filter are thermally coupled to maintain a constant wavelength relationship between the filter characteristics of the optical filters.

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