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81. 发明申请

US20160373192A1 FSO Communications Terminals for Connecting Telecommunications Cards 审中-公开
标题翻译：用于连接电信卡的FSO通信终端
公开(公告)号：US20160373192A1
公开(公告)日：2016-12-22
申请号：US15106976
申请日：2013-12-24
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Antonio D'ERRICO , Antonella BOGONI , Fabio CAVALIERE , Luca GIORGI
IPC分类号： H04B10/80 , H04B10/564
CPC分类号： H04B10/803 , H04B10/564
摘要： The invention provides a free space optical (FSO) communications terminal for a first telecommunications card or a backplane. The FSO terminal comprises a plurality of transmission interfaces. The FSO terminal further comprises a light signal generating unit adapted to generate a plurality of light signals. Each of the plurality of light signals carries the same information as the other one or more of the plurality of light signals and is arranged for transmission through a respective one of the plurality of transmission interfaces. Each of the plurality of light signals is at a different orthogonal mode from the other one or more of the plurality of light signals. The invention further provides a free space optical (FSO) communications terminal for a second telecommunications card or a backplane. The FSO terminal comprises a plurality of receive interfaces. Each of the plurality of receive interfaces adapted to receive a light signal carrying information. The light signal may be at any one of a plurality of orthogonal modes. The FSO terminal further comprises a plurality of optical-to-electrical signal convertors. The invention further provides an optical backplane, a router and an optical node.
摘要翻译：本发明提供了一种用于第一电信卡或背板的自由空间光（FSO）通信终端。 FSO终端包括多个传输接口。 FSO终端还包括适于产生多个光信号的光信号发生单元。多个光信号中的每一个携带与多个光信号中的另一个或多个光信号相同的信息，并且被布置用于通过多个传输接口中的相应一个传输。多个光信号中的每一个处于与多个光信号中的另一个或多个光信号不同的正交模式。本发明还提供了一种用于第二电信卡或背板的自由空间光（FSO）通信终端。 FSO终端包括多个接收接口。所述多个接收接口中的每一个适于接收携带信息的光信号。光信号可以是多个正交模式中的任何一个。 FSO端子还包括多个光电信号转换器。本发明还提供一种光背板，路由器和光节点。

82. 发明申请

US20160352436A1 HIGH-BANDWIDTH UNDERWATER DATA COMMUNICATION SYSTEM 有权
标题翻译：高带宽水下数据通信系统
公开(公告)号：US20160352436A1
公开(公告)日：2016-12-01
申请号：US15237106
申请日：2016-08-15
申请人： Fairfield Industries Incorporated
发明人： William Hopewell , Philip Lacovara , Michael Morris
IPC分类号： H04B13/02 , H04B10/564 , H04B10/80
CPC分类号： H04B13/02 , H03G3/3084 , H04B10/2575 , H04B10/50 , H04B10/564 , H04B10/80 , H04L27/2601 , H04L27/2697
摘要： An apparatus is described which uses directly modulated InGaN Light-Emitting Diodes (LEDs) or InGaN lasers as the transmitters for an underwater data-communication device. The receiver uses automatic gain control to facilitate performance of the apparatus over a wide-range of distances and water turbidities.
摘要翻译：描述了使用直接调制的InGaN发光二极管（LED）或InGaN激光器作为水下数据通信设备的发射器的装置。接收机使用自动增益控制，以便在宽范围的距离和水浊度下促进设备的性能。

83. 发明申请

US20160344482A1 METHOD AND SYSTEM FOR NONLINEAR INTERFERENCE MITIGATION 有权
标题翻译：用于非线性干扰减轻的方法和系统
公开(公告)号：US20160344482A1
公开(公告)日：2016-11-24
申请号：US14717762
申请日：2015-05-20
申请人： Qunbi Zhuge , Michael Andrew Reimer , Shahab Oveis Gharan , Maurice Stephen O'Sullivan
发明人： Qunbi Zhuge , Michael Andrew Reimer , Shahab Oveis Gharan , Maurice Stephen O'Sullivan
IPC分类号： H04B10/58 , H04J14/02 , H04B10/2507 , H04B10/564 , H04B10/2557
CPC分类号： H04B10/58 , H04B10/2557 , H04B10/2563 , H04B10/2572 , H04B10/564 , H04B2210/254 , H04J14/0221
摘要： A method for preventing nonlinear interference in an optical communication system. The method may include selecting an optical signal of a first optical channel. The method may include determining an estimate of inter-channel nonlinear interference to the optical signal of the first optical channel. The inter-channel nonlinear interference may be generated by one or more optical signals transmitted over a second optical channel in the optical communication system. The method may include determining one or more linear filters based on the estimate of the inter-channel nonlinear interference. The method may include pre-distorting an optical signal for transmission over the second optical channel using the one or more linear filters. The pre-distorted optical signal may be configured for reducing the inter-channel nonlinear interference to the first optical signal of the first optical channel. The method may include transmitting the pre-distorted optical signal over the second optical channel through an optical transmission medium.
摘要翻译：一种用于防止光通信系统中的非线性干扰的方法。该方法可以包括选择第一光信道的光信号。该方法可以包括确定对第一光学信道的光信号的信道间非线性干扰的估计。信道间非线性干扰可以由在光通信系统中通过第二光信道发射的一个或多个光信号产生。该方法可以包括基于信道间非线性干扰的估计来确定一个或多个线性滤波器。该方法可以包括使用一个或多个线性滤波器对光信号进行预失真以在第二光学信道上进行传输。预失真的光信号可以被配置为减少对第一光信道的第一光信号的信道间非线性干扰。该方法可以包括通过光传输介质在第二光信道上发送预失真的光信号。

84. 发明申请

US20160315708A1 OPTICAL AMPLIFIER, OPTICAL TRANSMISSION APPARATUS, AND OPTICAL REPEATING APPARATUS 有权
标题翻译：光放大器，光传输装置和光复制装置
公开(公告)号：US20160315708A1
公开(公告)日：2016-10-27
申请号：US15134630
申请日：2016-04-21
申请人： FUJITSU LIMITED
发明人： Yoshito Kachita , Tomoaki Takeyama
IPC分类号： H04B10/294 , H01S3/067 , H04B10/564
CPC分类号： H04B10/2942
摘要： An optical amplifier includes: an amplification section includes a plurality of routes; a determination section that selects a passage route, through which the multi-wavelength optical signal passes, among the plurality of routes; an input-side detector that detects input power of the multi-wavelength optical signal input to the amplification section; a variable optical attenuator that attenuates the multi-wavelength optical signal that is amplified through passing through the passage route determined by the determination section; an output-side detector that detects output power of the multi-wavelength optical signal attenuated by the variable optical attenuator; a controller that controls the amplification section based on the input power detected by the input-side detector and the output power detected by the output-side detector such that a gain of the amplification section is steady; and an adjuster that adjusts an attenuation of the variable optical attenuator in accordance with the input power detected by the input-side detector.
摘要翻译：光放大器包括：放大部分，包括多条路线; 确定部，其选择所述多个路径中的多波长光信号经过的通过路径; 输入侧检测器，其检测输入到所述放大部的多波长光信号的输入功率; 可变光衰减器，其衰减通过所述判定部确定的所述通过路径被放大的多波长光信号; 输出侧检测器，其检测由所述可变光衰减器衰减的所述多波长光信号的输出功率; 控制器，其基于由输入侧检测器检测的输入功率和由输出侧检测器检测的输出功率来控制放大部分，使得放大部分的增益稳定; 以及调整器，其根据由输入侧检测器检测到的输入功率来调节可变光衰减器的衰减。

85. 发明授权

US09479262B2 Method and system for the monolithic integration of circuits for monitoring and control of RF signals 有权
标题翻译：用于监测和控制RF信号的电路的单片集成方法和系统
公开(公告)号：US09479262B2
公开(公告)日：2016-10-25
申请号：US15048222
申请日：2016-02-19
申请人： Skorpios Technologies, Inc.
发明人： Stephen B. Krasulick , Timothy Creazzo , Kalpit Jha , Elton Marchena , Amit Mizrahi
IPC分类号： H04B10/00 , H04B10/556 , H04B10/564 , H04B10/079 , H04J14/02 , H04J14/00
CPC分类号： H04B10/5561 , H04B10/07955 , H04B10/5053 , H04B10/564 , H04J14/0227 , H04L27/2096
摘要： A method of operating a BPSK modulator includes receiving an RF signal at the BPSK modulator and splitting the RF signal into a first portion and a second portion that is inverted with respect to the first portion. The method also includes receiving the first portion at a first arm of the BPSK modulator, receiving the second portion at a second arm of the BPSK modulator, applying a first tone to the first arm of the BPSK modulator, and applying a second tone to the second arm of the BPSK modulator. The method further includes measuring a power associated with an output of the BPSK modulator and adjusting a phase applied to at least one of the first arm of the BPSK modulator or the second arm of the BPSK modulator in response to the measured power.
摘要翻译：一种操作BPSK调制器的方法包括在BPSK调制器处接收RF信号，并将RF信号分成第一部分和相对于第一部分反相的第二部分。该方法还包括在BPSK调制器的第一臂处接收第一部分，在BPSK调制器的第二臂处接收第二部分，向BPSK调制器的第一臂应用第一音调，并向第 BPSK调制器的第二臂。该方法还包括测量与BPSK调制器的输出相关联的功率，并且响应于测量的功率调整施加到BPSK调制器的第一臂或BPSK调制器的第二臂中的至少一个的相位。

86. 发明授权

US09479255B2 Method and apparatus for controlling the optical output power from a burst mode laser 有权
标题翻译：用于从突发模式激光器控制光输出功率的方法和装置
公开(公告)号：US09479255B2
公开(公告)日：2016-10-25
申请号：US12112569
申请日：2008-04-30
申请人： David B. Bowler , James M. Aufiero , Francis J. Calabresi , Christopher J. Pekalsky
发明人： David B. Bowler , James M. Aufiero , Francis J. Calabresi , Christopher J. Pekalsky
IPC分类号： H04B10/27 , H04B10/564 , H04J3/16
CPC分类号： H04B10/27 , H04B10/564 , H04J3/1694
摘要： An optical network terminal is provided for use in a passive optical network (PON). The optical network terminal includes a data port for receiving data packets from an external device and a processor for converting the data packets to data link frames. In addition, the optical network terminal includes a memory configured to store a time division multiplexing scheme identifying a time slot assigned to each of a plurality of network nodes in the PON for transmission of upstream optical signals. An optical transceiver is provided for converting the data link frames to upstream optical signals and transmitting the optical signals on an upstream TDMA (time division, multiple access) channel to an Optical Line Terminal (OLT). The optical transceiver includes a burst mode laser diode for generating the optical signals and a burst mode laser driver for biasing the laser diode with a bias signal and a modulation bias signal. The laser driver includes a dual closed loop feedback control circuit. The dual closed loop feedback control circuit is configured to measure and adjust a logic zero output power level from the laser diode during a time slot identified from the time division multiplexing scheme stored in the memory.
摘要翻译：提供一种用于无源光网络（PON）的光网络终端。光网络终端包括用于从外部设备接收数据分组的数据端口和用于将数据分组转换成数据链路帧的处理器。此外，光网络终端包括：存储器，被配置为存储标识分配给PON中的多个网络节点中的每一个的时隙的时分复用方案，用于上行光信号的传输。提供了一种光收发器，用于将数据链路帧转换为上行光信号，并将上行TDMA（时分多址）信道上的光信号发送到光线路终端（OLT）。光收发器包括用于产生光信号的突发模式激光二极管和用偏置信号和调制偏置信号偏置激光二极管的脉冲串模式激光驱动器。激光驱动器包括双闭环反馈控制电路。双闭环反馈控制电路被配置为在从存储在存储器中的时分复用方案识别的时隙期间，测量并调整来自激光二极管的逻辑零输出功率电平。

87. 发明申请

US20160308619A1 HIGH-SPEED, LOW-POWER OPTICAL COMMUNICATIONS 有权
标题翻译：高速，低功率光通信
公开(公告)号：US20160308619A1
公开(公告)日：2016-10-20
申请号：US15131676
申请日：2016-04-18
申请人： Maxlinear, Inc.
发明人： Curtis Ling
IPC分类号： H04B10/564 , H04B1/00 , H04B10/25 , H04B10/40 , H04B10/61
CPC分类号： H04B10/564 , H04B10/07955 , H04B10/40
摘要： Aspects of a method and system for high-speed, low-power optical communications are provided. In one embodiment, a system for optical communications comprises a digital-to-analog converter (DAC), a driver, and a transmit optical subsystem. The DAC is operable to receive a digital code of a plurality of digital codes and output an analog current signal having an analog current level of a plurality of analog current levels. The driver is operable to condition the analog current signal output from the digital-to-analog converter. The transmit optical subsystem is operable to generate an optical power signal from the conditioned analog current signal. A mapping between the plurality of digital codes and the plurality of analog current levels is dynamically controlled according to one or more characteristics of the optical power signal. The one or more characteristics comprise or a symbol amplitude sensitivity and/or a nonlinearity that may be temperature dependent.
摘要翻译：提供了用于高速，低功率光通信的方法和系统的方面。在一个实施例中，用于光通信的系统包括数模转换器（DAC），驱动器和发射光学子系统。 DAC可操作地接收多个数字代码的数字代码并输出具有多个模拟电流电平的模拟电流电平的模拟电流信号。驱动器可操作以调节从数模转换器输出的模拟电流信号。发射光学子系统可操作以从经调节的模拟电流信号产生光功率信号。根据光功率信号的一个或多个特性，动态地控制多个数字码与多个模拟电平电平之间的映射。一个或多个特征包括或符号幅度灵敏度和/或可能是温度依赖性的非线性。

88. 发明授权

US09473249B2 Light transmission apparatus, light communication system, light reception apparatus, method for adjusting light transmission, method for transmitting light, and method for receiving light 有权
标题翻译：光传输装置，光通信系统，光接收装置，光传输调节方法，发射光的方法和接收光的方法
公开(公告)号：US09473249B2
公开(公告)日：2016-10-18
申请号：US14391908
申请日：2013-01-30
申请人： NEC Corporation
发明人： Shinsuke Fujisawa , Daisaku Ogasahara , Toru Takamichi
IPC分类号： H04B10/12 , H04B10/564 , H04B10/2543 , H04B10/61 , H04B10/60 , H04B10/079
CPC分类号： H04B10/564 , H04B10/0799 , H04B10/2543 , H04B10/60 , H04B10/614 , H04B10/616
摘要： An optical signal generation unit (110) generates an optical signal for transmission by adding modulation based on a driving signal to a carrier wave. A filtering unit (120) performs a filtering process on the driving signal. The filtering unit (120) may perform time domain equalization, and may perform frequency domain equalization. Specifically, the filtering unit (120) performs a filtering process on the driving signal, and thus sets a peak value of a power spectral density of the optical signal for transmission to be equal to or less than a second reference value while an integrated value obtained by integrating the power spectral density of the optical signal for transmission in a frequency direction is maintained at equal to or greater than a first reference value.
摘要翻译：光信号生成单元（110）通过基于对载波的驱动信号的调制来生成用于发送的光信号。滤波单元（120）对驱动信号进行滤波处理。滤波单元（120）可以执行时域均衡，并且可以执行频域均衡。具体地说，滤波单元120对驱动信号进行滤波处理，将发送用光信号的功率谱密度的峰值设定为第二基准值以下，同时获得的积分值通过将用于在频率方向上传输的光信号的功率谱密度积分为等于或大于第一参考值。

89. 发明申请

US20160277098A1 SAFETY-ENHANCED LASER ARRAY 有权
标题翻译：安全增强型激光阵列
公开(公告)号：US20160277098A1
公开(公告)日：2016-09-22
申请号：US14815857
申请日：2015-07-31
申请人： Oracle International Corporation
发明人： Patrick J. Decker , Ashok V. Krishnamoorthy , Xuezhe Zheng , Ola Torudbakken
IPC分类号： H04B10/03 , H04B10/564 , H04B10/50
CPC分类号： H04B10/03 , H04B10/40 , H04B10/503 , H04B10/564 , H04B10/801 , H04B2210/08
摘要： When an unsafe port with a loss of signal is detected, a transceiver may enable one laser in a group of lasers associated with the unsafe port and may disable the remaining lasers. Then, the transceiver may instruct a transmitter associated with the one laser to transmit an optical signal on the unsafe port using a reduced transmit power that is less than a threshold value associated with the Class 1 conditions and at a different time than enabled lasers in other groups of lasers. Alternatively, for a safe port on which valid communication is received, the transceiver may enable lasers in a group of lasers associated with the safe port. Then, the transceiver may instruct transmitters associated with the lasers in this group of lasers to transmit optical signals on the safe port using a normal transmit power for the lasers that is greater than the threshold value.
摘要翻译：当检测到具有信号丢失的不安全端口时，收发器可以在与不安全端口相关联的一组激光器中启用一个激光器，并且可以禁用剩余的激光器。然后，收发器可以指示与一个激光器相关联的发射器在不安全端口上使用小于与类别1条件相关联的阈值的衰减的发射功率以及在与其他激光器中的能量激光器不同的时间激光组。或者，对于在其上接收有效通信的安全端口，收发器可以使得与安全端口相关联的一组激光器中的激光器成为可能。然后，收发器可以指示与这组激光器中的激光器相关联的发射器使用大于阈值的激光器的正常发射功率在安全端口上传输光信号。

90. 发明授权

US09419722B2 Feedback for electronic pre-distortion in an optical transmitter 有权
标题翻译：光发射机电子预失真的反馈
公开(公告)号：US09419722B2
公开(公告)日：2016-08-16
申请号：US14469708
申请日：2014-08-27
申请人： Alcatel-Lucent USA Inc.
发明人： Peter J. Winzer , Andrew Adamiecki , Chandrasekhar Sethumadhavan , Gregory Raybon
IPC分类号： H04B10/58 , H04B10/588 , H04B10/25 , H04B10/564
CPC分类号： H04B10/58 , H04B10/2504 , H04B10/564 , H04B10/588
摘要： We disclose an optical transponder, in which one or more all-electronic feedback paths are used to obtain a relatively accurate estimate of the device-specific signal distortions in the transmitter portion thereof. The obtained estimate is used to enable the digital signal processor of the optical transponder to carry out electronic pre-distortion (EPD) that can significantly reduce or cancel these signal distortions without the use of detailed factory-calibration measurements or optics dedicated to feedback purposes. The use of all-electronic feedback paths may enable a beneficial reduction in the cost of the EPD functionality, e.g., by eliminating a significant extra cost associated with the implementation of optically generated feedback.
摘要翻译：我们公开了一种光转发器，其中使用一个或多个全电子反馈路径来获得其发射机部分中的设备特定信号失真的相对精确的估计。所获得的估计用于使得光转发器的数字信号处理器能够执行电子预失真（EPD），其可以显着地减少或消除这些信号失真，而不需要使用专门用于反馈目的的详细的工厂校准测量或光学器件。使用全电子反馈路径可以有助于降低EPD功能的成本，例如通过消除与实施光学产生的反馈相关的显着的额外成本。

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