公开(公告)号：US09553692B2

公开(公告)日：2017-01-24

申请号：US14689650

申请日：2015-04-17

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hark Yoo ,  Dong Soo Lee ,  Geun Yong Kim ,  Sung Chang Kim ,  Hee Do Kim ,  Jae In Kim

IPC: H04B10/08 ,  H04J14/08 ,  H04B10/564 ,  H04B10/079 ,  H04J14/02

CPC classification number: H04B10/564 ,  H04B10/07953 ,  H04B10/07955 ,  H04J14/0221 ,  H04J14/0267 ,  H04J14/0282 ,  H04J14/08

Abstract: Disclosed are a method and system for determining and controlling power of an optical transmitter of an optical network unit (ONU) for a time and wavelength division multiplexing passive optical network (TWDM-PON). The system includes an RSSI collector configured to collect received signal strength indication (RSSI) information from upstream optical signals received from the ONUs connected to optical line terminal (OLT) ports, an ONU power level determiner configured to gather the pieces of RSSI information about the ONUs from the RSSI collector, and to determine power of optical transmitters of the ONUs based on the gathered information, and a power mode controller configured to receive power mode setting information of the optical transmitters of the ONUs from the ONU power level determiner, and to generate a physical layer operation and maintenance (PLOAM) message to control power modes of the ONUs based on the received power mode setting information.

Abstract translation: 公开了用于时分和波分复用无源光网络（TWDM-PON）的用于光网络单元（ONU）的光发射机功率的方法和系统。 该系统包括：RSSI收集器，被配置为从从连接到光线路终端（OLT）端口的ONU接收的上游光信号中收集接收信号强度指示（RSSI）信息; ONU功率电平确定器，被配置为收集关于 基于所收集的信息来确定ONU的光发射机的功率;以及功率模式控制器，被配置为从ONU功率电平确定器接收ONU的光发射机的功率模式设置信息，以及 生成物理层操作和维护（PLOAM）消息，以基于接收到的功率模式设置信息来控制ONU的功率模式。

公开(公告)号：US20170019174A1

公开(公告)日：2017-01-19

申请号：US15186892

申请日：2016-06-20

Applicant: FUJITSU LIMITED

Inventor： Takashi SHIRAISHI

IPC: H04B10/079

CPC classification number: H04B10/07955 ,  H04B10/0775 ,  H04B2210/074

Abstract: There is provided a receiving device including a receiver configured to receive a signal including at least data information and control information; a monitor configured to monitor the control information included in the signal received by the receiver; and a controller configured to control the monitor to start monitoring the control information when a strength of the signal is equal to or lower than a predetermined value.

Abstract translation: 提供了一种接收设备，包括：接收器，被配置为接收至少包括数据信息和控制信息的信号; 监视器，被配置为监视由所述接收器接收的信号中包括的控制信息; 以及控制器，被配置为当所述信号的强度等于或低于预定值时，控制所述监视器开始监视所述控制信息。

公开(公告)号：US20170005747A1

公开(公告)日：2017-01-05

申请号：US14790967

申请日：2015-07-02

Applicant: Fujitsu Limited

Inventor： Inwoong Kim ,  Olga Vassilieva ,  Paparao Palacharla ,  Motoyoshi Sekiya

IPC: H04J14/02 ,  H04B10/079

CPC classification number: H04J14/0221 ,  H04B10/07955 ,  H04B10/07957

Abstract: Methods and systems for periodic optical filtering to identify tone modulated optical signals may enable relatively rapid scanning of an optical signal to identify individual optical channels. The optical signal having tone modulated optical channels may be scanned over a free spectral range of a periodic optical filter, such as a comb filter, to generate a filtered signal. Then, center optical frequencies for each of the optical channels in the filtered signal may be determined by demodulation and digital signal processing.

Abstract translation: 用于周期性光学滤波以识别色调调制光信号的方法和系统可以实现光信号的相对快速扫描以识别各个光信道。 可以在诸如梳状滤波器的周期性滤光器的自由光谱范围上扫描具有色调调制光信道的光信号，以产生滤波信号。 然后，可以通过解调和数字信号处理来确定滤波信号中的每个光通道的中心光频率。

公开(公告)号：US20170005729A1

公开(公告)日：2017-01-05

申请号：US14754827

申请日：2015-06-30

Applicant: II-VI Incorporated

Inventor： Michael Cahill ,  Christopher S. Koeppen ,  Glenn Bartolini ,  Jayesh Jasapara

IPC: H04B10/079 ,  H04Q11/00 ,  H04J14/02 ,  G02B6/35 ,  G02B6/293

CPC classification number: H04B10/07957 ,  G02B6/29361 ,  G02B6/3548 ,  H04B10/07953 ,  H04B10/07955 ,  H04J14/0227 ,  H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0039 ,  H04Q2011/0083

Abstract: A multiport optical switch (such as an N×1 switch) is used to controllably select a specific incoming optical signal that is to be processed by an associated optical channel monitor (OCM). The OCM includes a tunable optical filter and photodetector arrangement, and is configured to measure the optical spectrum of the incoming optical signal and extract information associated with the various optical channels (wavelengths) forming the incoming optical signal (i.e., power, wavelength, OSNR and the like for each channel). The OCM also includes a signal processing component that generates a pair of output control signals, a first signal to control the wavelength scanning process of the tunable optical filter and a second signal to control the setting of the multiport optical switch.

Abstract translation: 使用多端口光开关（例如N×1开关）来可控地选择要由相关联的光通道监视器（OCM）处理的特定输入光信号。 OCM包括可调光滤波器和光电检测器装置，并且被配置为测量入射光信号的光谱并提取与形成入射光信号的各种光信道（波长）相关联的信息（即功率，波长，OSNR和 每个通道的类似）。 OCM还包括产生一对输出控制信号的信号处理部件，控制可调光滤波器的波长扫描处理的第一信号和用于控制多端口光开关的设置的第二信号。

公开(公告)号：US20170005723A1

公开(公告)日：2017-01-05

申请号：US14788116

申请日：2015-06-30

Applicant: JDSU Deutschland GmbH

Inventor： Dominik PRAUSE

IPC: H04B10/079 ,  H04Q11/00

CPC classification number: H04B10/0793 ,  G01M11/335 ,  H04B10/07 ,  H04B10/07955 ,  H04Q11/0067 ,  H04Q2011/0083

Abstract: A test instrument can be coupled to a test point in a passive optical network to measure optical signals transmitted between an optical line terminal and an optical network unit in the optical network. The test instrument can capture an identifier of the ONU from downstream signals sent from the OLT to the ONU.

Abstract translation: 测试仪器可以耦合到无源光网络中的测试点，以测量在光网络中的光线路终端和光网络单元之间传输的光信号。 测试仪器可以从OLT向ONU发送的下行信号捕获ONU的标识符。

公开(公告)号：US20160359555A1

公开(公告)日：2016-12-08

申请号：US15171498

申请日：2016-06-02

Applicant: VIAVI SOLUTIONS DEUTSCHLAND GMBH

Inventor： Dominik PRAUSE

IPC: H04B10/079 ,  H04B10/25

CPC classification number: H04B10/0793 ,  H04B10/07955 ,  H04B10/2503 ,  H04B10/27 ,  H04B10/272

Abstract: A test apparatus and method for testing passive optical networks is provided. The test apparatus includes an optical circuit having an optical coupler for splitting off a portion of optical traffic. During testing of a passive optical network, the optical circuit is coupled into an optical path of the passive optical network. A bit stream corresponding to an activating procedure is captured and analyzed to extract identification information of the module that sent the bit stream.

公开(公告)号：US09515727B2

公开(公告)日：2016-12-06

申请号：US14639757

申请日：2015-03-05

Applicant: Fujitsu Limited

Inventor： Jeng-Yuan Yang ,  Youichi Akasaka ,  Motoyoshi Sekiya ,  Takuji Maeda ,  Hiroki Ooi ,  Satoru Okano

IPC: H04B10/079

CPC classification number: H04B10/07953 ,  H04B10/07955

Abstract: Methods and systems for in-band OSNR monitoring include a tunable optical filter to scan a passband of a desired optical channel. The optical power over the passband is measured and digitized to power waveform data. The power waveform data is processed with a digital signal processor to calculate OSNR. Additionally, various implementations accommodate dual polarization modulation formats using a parallel architecture and an alternating sequential architecture.

Abstract translation: 用于带内OSNR监测的方法和系统包括用于扫描期望光通道的通带的可调谐滤光器。 通过通带的光功率被测量并数字化以对波形数据供电。 用数字信号处理器处理功率波形数据，以计算OSNR。 此外，各种实施方式适用于使用并行架构和交替顺序架构的双偏振调制格式。

公开(公告)号：US09515726B2

公开(公告)日：2016-12-06

申请号：US14359637

申请日：2013-10-04

Applicant: AFL Telecommunications LLC

Inventor： Sean Patrick Adam ,  Joseph Fitzgerald ,  Jeffrey Alexander Harding ,  Scott Prescott

IPC: H04J14/02 ,  H04B10/079 ,  H04Q11/00

CPC classification number: H04B10/07953 ,  H04B10/07955 ,  H04B10/07957 ,  H04J14/02 ,  H04J14/0227 ,  H04Q11/0067 ,  H04Q2011/0083

Abstract: The present disclosure describes a method, an apparatus, and a non-transitory computer-readable medium storing a program for measuring characteristics of a WDM system. The method may include obtaining channel characteristics of a channel, calculating a Health Factor of a channel using the characteristics, and displaying the Health Factor and characteristics of a channel on a display device.

Abstract translation: 本公开描述了存储用于测量WDM系统的特性的程序的方法，装置和非暂时计算机可读介质。 该方法可以包括获得信道的信道特性，使用特征来计算信道的健康因子，以及在显示设备上显示频道的健康因子和特征。

公开(公告)号：US09515725B2

公开(公告)日：2016-12-06

申请号：US14688259

申请日：2015-04-16

Applicant: Calix, Inc.

Inventor： Christopher T. Bernard

IPC: H04B10/00 ,  H04B10/038 ,  H04B10/079 ,  H04L29/06 ,  H04B10/85 ,  H04Q11/00 ,  H04J3/14 ,  H04J3/16 ,  H04J14/08 ,  H04B10/077 ,  H04B10/272

CPC classification number: H04B10/038 ,  H04B10/0773 ,  H04B10/07955 ,  H04B10/272 ,  H04B10/85 ,  H04J3/14 ,  H04J3/1694 ,  H04J14/08 ,  H04L63/1408 ,  H04Q11/0067 ,  H04Q2011/0083 ,  H04Q2011/0086

Abstract: Techniques are described for identifying a rogue network interface device whose laser is not under control of a controller of the network interface device. The techniques identify the rogue network interface device based on reception of a predefined data pattern in a timeslot that is not reserved for any of the network interface devices without needing to disable upstream data transmission from the network interface devices during their assigned timeslots. The techniques also relate to a network interface device determining whether the network interface device is transmitting optical signals at a wavelength different than the wavelength that the OLT to which the network interface device is associated receives.

Abstract translation: 描述了用于识别其激光不在网络接口设备的控制器的控制下的流氓网络接口设备的技术。 该技术基于在不为任何网络接口设备预留的时隙中接收到预定义的数据模式，而不需要在其分配的时隙期间从网络接口设备禁用上游数据传输来识别流氓网络接口设备。 这些技术还涉及网络接口设备，确定网络接口设备是否正在发送波长不同于与网络接口设备所关联的OLT所接收的波长的波长的光信号。

公开(公告)号：US09485016B2

公开(公告)日：2016-11-01

申请号：US14033040

申请日：2013-09-20

Applicant: Harlan Kassler

Inventor： Harlan Kassler

IPC: H04B10/00 ,  H04B10/077 ,  H04B10/073 ,  H04B10/079

CPC classification number: H04B10/0779 ,  H04B10/0731 ,  H04B10/0773 ,  H04B10/0775 ,  H04B10/07955

Abstract: A method for testing the operation of an optical fiber cable in a communication network using an optical loss test set (OLTS) instrument includes receiving a range of identifiers of fibers to be tested. Identifiers of a first fiber set to be tested are displayed. The first fiber set comprises one or more fibers. The first fiber pair is included in the range. The first fiber pair is a next fiber pair to be tested. A determination is made whether the first fiber set is connected to the OLTS instrument. In response to determining that the first fiber set is connected to the OLTS instrument, a test of the first fiber set operation is performed using the OLTS instrument. Identifiers of a second fiber set are displayed. The second fiber set is included in the range and constitutes a next fiber set to be tested.

Abstract translation: 使用光损耗测试仪（OLTS）仪器测试通信网络中的光纤电缆的操作的方法包括接收要测试的光纤的标识符的范围。 显示要测试的第一个光纤组的标识符。 第一纤维集包括一根或多根纤维。 第一个光纤对包含在该范围内。 第一个光纤对是待测试的下一个光纤对。 确定第一光纤组是否连接到OLTS仪器。 响应于确定第一光纤组连接到OLTS仪器，使用OLTS仪器执行第一光纤组操作的测试。 显示第二个光纤组的标识符。 第二光纤组合包含在该范围内并构成待测试的下一个光纤组。