公开(公告)号：US09596072B2

公开(公告)日：2017-03-14

申请号：US14562062

申请日：2014-12-05

Applicant: ADVA Optical Networking SE

Inventor： Peter Turnbull

IPC: H04L7/00 ,  H04L12/841 ,  H04J3/16 ,  H04L12/26 ,  H04J3/06

CPC classification number: H04L7/0037 ,  H04J3/0664 ,  H04J3/16 ,  H04L43/0858 ,  H04L47/283

Abstract: An apparatus for mitigation of packet delay variation, PDV, in a packet-based network, comprising an ingress port to receive event messages, each message being timestamped with a local ingress timestamp at the instant of reception of the message using a local internal clock; an extraction unit to extract a timestamp embedded in the received message; a computation unit to calculate a time offset between the extracted embedded timestamp and the local ingress timestamp of the received event message to record the calculated time offset as a maximum observed delay, if the calculated time offset exceeds a previously recorded maximum observed delay, the computation unit adjusting an internal transmission delay time before onward transmission of the event message from an egress port depending on a time difference between recorded maximum observed delay and calculated time offset of the event message to minimize the packet delay variation, PDV, at the egress port.

Abstract translation: 一种用于缓解基于分组的网络中的分组延迟变化PDV的装置，包括用于接收事件消息的入口端口，每个消息使用本地内部时钟在接收消息时使用本地入口时间戳进行时间戳; 提取单元，用于提取嵌入在接收到的消息中的时间戳; 计算单元，用于计算所提取的嵌入时间戳和接收到的事件消息的本地入口时间戳之间的时间偏移量，以将计算出的时间偏移记录为最大观测延迟，如果所计算的时间偏移超过先前记录的最大观测延迟， 单元根据记录的最大观察延迟与计算出的事件消息的时间偏移之间的时间差来调整来自出口端口的事件消息的向前发送之间的内部传输延迟时间，以最小化出口端口处的分组延迟变化PDV。

公开(公告)号：US09496958B1

公开(公告)日：2016-11-15

申请号：US14817377

申请日：2015-08-04

Applicant: ADVA Optical Networking SE

Inventor： Igor Bryskin ,  Aihua Guo

IPC: H04B10/00 ,  H04B10/27 ,  H04Q11/00

CPC classification number: H04B10/27 ,  H04J3/1652 ,  H04J2203/0058 ,  H04L45/62 ,  H04Q11/0062

Abstract: A method for traffic engineering on an optical transport network, OTN, comprising network elements implementing asymmetric OTN switches, said method comprising discovering by each network element of said network ODUk containers available on each of locally terminated traffic engineering, TE, links and identifying the switching limitations of the discovered ODUk containers with respect to how said ODUk containers are switchable onto the ODUk containers available on other locally terminated TE links; identifying by said network element groups of ODUk containers available on a given TE link exhibiting identical switching limitations; negotiating by said network element with its neighboring network elements properties of to be advertised child TE links each associated with a separate ODUk group; and advertising by said network element for each identified group of ODUk containers a separate child TE link parallel to the original parent TE link, wherein each advertised child TE link indicates the total number of available ODUk containers within the respective ODUk group along with the identified switching limitations exhibited by the ODUk containers of said ODUk group and wherein the re-advertised parent TE link indicates the number of available ODUk containers reduced to account for the ODUk containers associated with the separately advertised child TE links.

Abstract translation: 一种用于光传输网络OTN上的流量工程的方法，包括实现非对称OTN交换机的网元，所述方法包括：由本地端接的流量工程，TE，链路上每个可用的所述网络ODUk容器的每个网元发现， 关于如何将ODUk容器切换到其他本地终止的TE链路上可用的ODUk容器上的发现的ODUk容器的限制; 由给出的具有相同切换限制的给定TE链路上可用的ODUk容器的所述网元组识别; 由所述网络单元与其相邻网络元件协商将被广告化的子TE链路的属性，每个链路各自与单独的ODUk组相关联; 以及由所述网络单元为每个所标识的ODUk容器组广告与原始父TE链路并行的单独子TE链路，其中每个通告的子TE链路指示相应ODUk组内的可用ODUk容器的总数以及所识别的交换 所述ODUk组的ODUk容器表现出的限制，并且其中重新发布的父TE链路指示减少的可用ODUk容器的数量，以解释与单独通告的子TE链路相关联的ODUk容器。

公开(公告)号：US09473246B2

公开(公告)日：2016-10-18

申请号：US14704046

申请日：2015-05-05

Applicant: ADVA Optical Networking SE

Inventor： Klaus Grobe ,  Michael Eiselt

IPC: H04B10/50 ,  H04B10/572 ,  H04J14/02 ,  H04B17/11

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。

公开(公告)号：US20150358108A1

公开(公告)日：2015-12-10

申请号：US14828676

申请日：2015-08-18

Applicant: ADVA Optical Networking SE

Inventor： Steven Searcy ,  Sorin Tibuleac

IPC: H04J14/02 ,  H04B10/516 ,  H04B10/2557

CPC classification number: H04J14/02 ,  H04B10/0779 ,  H04B10/0799 ,  H04B10/2557 ,  H04B10/5161 ,  H04J14/0275

Abstract: A hybrid wavelength division multiplexing system wherein one or more intensity modulated signals generated by optical amplitude modulators are co-propagated with one or more phase modulated signals generated by optical phase modulators, wherein a drive voltage of said optical amplitude modulator is adapted to reduce an extinction ratio of the intensity modulated signal to minimize a cross-phase modulation impact on the co-propagating phase modulated signals.

Abstract translation: 一种混合波分复用系统，其中由光振幅调制器产生的一个或多个强度调制信号与由光相位调制器产生的一个或多个相位调制信号共同传播，其中所述光幅度调制器的驱动电压适于减少消光 强度调制信号的比率以最小化对共同相位调制信号的交叉相位调制影响。

公开(公告)号：US20150304244A1

公开(公告)日：2015-10-22

申请号：US14254950

申请日：2014-04-17

Applicant: ADVA Optical Networking SE

Inventor： Marshall Johnson ,  David Dworkin ,  Robert Bishop

IPC: H04L12/933 ,  H04L7/033 ,  H04Q11/00 ,  H04L12/935 ,  H04L12/26

CPC classification number: H04L49/10 ,  G06F13/4022 ,  H04L7/0331 ,  H04L43/0847 ,  H04L43/50 ,  H04L49/3063 ,  H04Q11/0071

Abstract: An apparatus comprising high speed ports connected via an integrated high speed serial switch fabric and serializer/deserializer circuits to an internal processing logic, wherein said high speed serial switch fabric is adapted to switch a serial reception signal received by a high speed port to at least one other high speed port of said apparatus and/or to the serializer/deserializer circuit of the receiving high speed port.

Abstract translation: 一种包括通过集成的高速串行交换结构连接的高速端口和串行器/解串行器电路到内部处理逻辑的装置，其中所述高速串行交换结构适于将由高速端口接收的串行接收信号切换到至少 所述设备的另一个高速端口和/或接收高速端口的串行器/解串行器电路。

公开(公告)号：US09166725B2

公开(公告)日：2015-10-20

申请号：US14314399

申请日：2014-06-25

Applicant: ADVA Optical Networking SE

Inventor： Klaus Grobe ,  Andreas Faerbert

IPC: H04J14/02 ,  H04B10/291 ,  H04B10/293

CPC classification number: H04J14/0221 ,  H04B10/2916 ,  H04B10/2939 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0282

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。

公开(公告)号：US09166722B2

公开(公告)日：2015-10-20

申请号：US13712765

申请日：2012-12-12

Applicant: ADVA Optical Networking SE

Inventor： Steven Searcy ,  Sorin Tibuleac

IPC: H04B10/04 ,  H04J14/02 ,  H04B10/2557 ,  H04B10/077 ,  H04B10/079

CPC classification number: H04J14/02 ,  H04B10/0779 ,  H04B10/0799 ,  H04B10/2557 ,  H04B10/5161 ,  H04J14/0275

Abstract: A hybrid wavelength division multiplexing system wherein one or more intensity modulated signals generated by optical amplitude modulators are co-propagated with one or more phase modulated signals generated by optical phase modulators, wherein a drive voltage of said optical amplitude modulator is adapted to reduce an extinction ratio of the intensity modulated signal to minimize a cross-phase modulation impact on the co-propagating phase modulated signals.

Abstract translation: 一种混合波分复用系统，其中由光振幅调制器产生的一个或多个强度调制信号与由光相位调制器产生的一个或多个相位调制信号共同传播，其中所述光幅度调制器的驱动电压适于减少消光 强度调制信号的比率以最小化对共同相位调制信号的交叉相位调制影响。

公开(公告)号：US20150244494A1

公开(公告)日：2015-08-27

申请号：US14616575

申请日：2015-02-06

Applicant: ADVA Optical Networking SE

Inventor： Klaus Grobe

IPC: H04J14/02

CPC classification number: H04J14/0278 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0267 ,  H04J14/0272 ,  H04J14/0282 ,  H04J14/0291 ,  H04J14/0295 ,  H04J2014/0253

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。

公开(公告)号：US20150063823A1

公开(公告)日：2015-03-05

申请号：US14468132

申请日：2014-08-25

Applicant: ADVA Optical Networking SE

Inventor： Michael Eiselt

IPC: H04L27/06 ,  H04L27/04 ,  H04B10/60 ,  H04B10/54

CPC classification number: H04L27/06 ,  H04B10/07953 ,  H04B10/5055 ,  H04B10/5167 ,  H04B10/541 ,  H04B10/60 ,  H04L27/04

Abstract: The invention relates to a method for transmitting a binary digital transmit signal over an optical transmission link. The method includes the steps of creating a differential optical duobinary signal (SdODB(t)), supplying the differential optical duobinary signal SdODB(t)) to a first end of the optical transmission link, transmitting the differential optical duobinary signal SdODB(t)) to a second end of the optical transmission link, and receiving the differential optical duobinary signal SdODB(t)) as receive signal (SRX(t)) at the second end of the optical transmission link by detecting the optical power of the differential optical duobinary signal SdODB(t)) and creating a binary digital receive signal (SbRX(t)) corresponding to the binary digital transmit signal (SbTX(t)) by decoding the receive signal (SRX(t)). The differential optical duobinary signal SdODB(t)) may be created by pre-coding the binary digital transmit signal (SbTX(t)) having a given bit interval (T) into an intermediate pre-coded digital signal (Spi(t)), the pre-coding operation being identical with or equivalent to applying a non-XOR operation to the binary digital transmit signal (SbTX(t)) and the intermediate pre-coded digital signal delayed by a single bit interval (Spi(t−T)), again pre-coding the intermediate pre-coded digital signal (Spi(t)) into a pre-coded digital signal (Sp(t)), this second pre-coding operation being identical with or equivalent to applying a non-XOR operation to the intermediate pre-coded digital signal (Spi(t)) and the pre-coded digital signal delayed by a single bit interval (Sp(t−T)), duobinary encoding the pre-coded signal (Sp(t)) into a differential duobinary signal (SdDB(t)), and modulating an optical light source of an optical modulator device (15) having the predetermined optical wavelength using the differential duobinary signal (SdDB(t)) as modulate signal. Alternatively, the differential optical duobinary signal SdODB(t)) may be created by directly pre-coding the binary digital transmit signal (SbTX(t)) into the pre-coded digital signal (Sp,alt(t)), the pre-coding operation being identical with or equivalent to applying a non-XOR operation to the binary digital transmit signal (SbTX(t)) and the pre-coded digital signal delayed by twice the bit interval (Sp,alt(t−2T)), duobinary encoding the pre-coded signal (Sp,alt(t)) into the differential duobinary signal (SdDB(t)), and modulating the optical light source of the optical modulator device (15) using the differential duobinary signal (SdDB(t)) as modulate signal. Further, the invention relates to a transmitter device (1) and a receiver device (17, 17′) for realizing the transmission method according to the invention.

公开(公告)号：US20140140699A1

公开(公告)日：2014-05-22

申请号：US14081756

申请日：2013-11-15

Applicant: ADVA Optical Networking SE

Inventor： Michael Eiselt ,  Stephan Pachnicke

IPC: H04B3/32 ,  H04J14/02

CPC classification number: H04B3/32 ,  H04J14/02 ,  H04J14/0208 ,  H04J14/06

Abstract: Arrangement for transmitting an optical digital WDM signal over an optical transmission link or a passive optical network, the signal (SWDM) including N optical channels matching a given optical frequency grid. The scheme includes supplying the WDM signal (SWDM) to a near end of the optical transmission link or a near end of the passive optical network; receiving the WDM signal (SWDM) at a far end of the optical transmission link or at one or more far ends of the passive optical network; separating the optical channel signals (si(t)) by splitting and bandpass filtering the WDM signal (SWDM) received; and converting the optical channel signals (si(t)) into electrical channel signals using direct optical detection. The signal (SWDM) is created such that neighboring channel signals (si(t)) are orthogonally polarized and are conditioned with specific pre-distortion.

Abstract translation: 用于通过光传输链路或无源光网络发送光数字WDM信号的装置，所述信号（SWDM）包括与给定光频网格匹配的N个光信道。 该方案包括将WDM信号（SWDM）提供给光传输链路的近端或无源光网络的近端; 在所述光传输链路的远端处或在所述无源光网络的一个或多个远端处接收所述WDM信号（SWDM）; 通过对所接收的WDM信号（SWDM）进行分频和带通滤波来分离光信道信号（si（t））; 以及使用直接光学检测将光信道信号（si（t））转换成电信道信号。 创建信号（SWDM），使得相邻信道信号（si（t））被正交极化并且用特定的预失真来调节。