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201.发明授权Optical network switching using N:N transponder through time-domain multiplexing and burst mode access 有权使用N：N转发器的光网络交换机通过时域复用和突发模式接入公开(公告)号：US09455795B2
公开(公告)日：2016-09-27
申请号：US14243068
申请日：2014-04-02
Applicant: NEC Laboratories America, Inc.
Inventor： Junqiang Hu , Ting Wang
CPC classification number: H04J14/0257 , H04J14/0256 , H04J14/0267 , H04J14/086
Abstract: A network switch is disclosed with each port having the function of: electrical processing and optical modulation; electrical processing has the ability to identify packet or frame destination; burst mode transmission and receiving capability; uses its pre-assigned time slot to send to the corresponding destination, or receive from the expected source.
Abstract translation: 公开了一种网络交换机，每个端口具有以下功能：电处理和光调制; 电子处理能够识别数据包或帧目的地; 突发模式发送和接收能力; 使用其预分配的时隙发送到相应的目的地，或从预期来源接收。
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公开(公告)号：US20160202283A1
公开(公告)日：2016-07-14
申请号：US14978934
申请日：2015-12-22
Applicant: NEC Laboratories America, Inc.
CPC classification number: G01P5/26 , B64D45/00 , B64D2045/007 , G01S7/4802 , G01S7/4814 , G01S17/58 , G01S17/95 , G01W1/10 , G01W2001/003 , Y02A90/19
Abstract: Systems and methods for detection of atmospheric conditions using optical orbital angular momentum (OAM)-based spectroscopy include applying OAM states to a light beam to generate an OAM spectrum, transmitting OAM light beams into an atmosphere, and determining degradation of the generated OAM light beams passing through atmospheric turbulence. A rotation rate of aerosols in the atmosphere is determined by analyzing different frequency shifts in OAM states of OAM light beams. A reflected OAM spectrum including a plurality of OAM light beams associated with the aerosols in the atmosphere may be received, and Doppler frequency shifts caused by reflection off the aerosols in the atmosphere may be measured. Laguerre-Gaussian (LG) modes of the received light beams may be detected and sorted based on the OAM states of the LG modes, and wind turbulence values are predicted by analyzing a difference in the Doppler frequency shifts for the received OAM light beams.
Abstract translation: 使用基于光轨道角动量（OAM）的光谱检测大气条件的系统和方法包括将OAM状态应用于光束以产生OAM光谱，将OAM光束传输到大气中，以及确定所生成的OAM光束的劣化 经过大气湍流。 通过分析OAM光束的OAM状态中的不同频移来确定大气中气溶胶的旋转速率。 可以接收包括与大气中的气溶胶相关联的多个OAM光束的反射OAM光谱，并且可以测量由大气中的气溶胶反射引起的多普勒频移。 可以基于LG模式的OAM状态来检测和分类接收光束的拉格尔 - 高斯（LG）模式，并且通过分析所接收的OAM光束的多普勒频移的差来预测风湍流值。
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公开(公告)号：US20160202142A1
公开(公告)日：2016-07-14
申请号：US14975062
申请日：2015-12-18
Applicant: NEC Laboratories America, Inc.
CPC classification number: G01M11/3181 , G01M11/3109 , G01M11/3172 , G02B6/14
Abstract: A method and system are provided. The method includes converting, using a spatial mode converter, an input signal into a plurality of spatial modes and performing polarization multiplexing and mode multiplexing, using a polarization multiplexer and a mode multiplexer, respectively, on the input signal. The method further includes injecting the input signal into a fiber optic medium. The method additionally includes applying, using at least one spatial filter in each of a forward and a backward direction within the fiber optic medium, the plurality of spatial modes within the fiber optic medium to transmit the input signal and perform distributed fault sensing on the input signal simultaneously
Abstract translation: 提供了一种方法和系统。 该方法包括使用空间模式转换器将输入信号转换为多个空间模式，并且对输入信号分别使用偏振复用器和模式多路复用器来执行偏振复用和模式复用。 该方法还包括将输入信号注入到光纤介质中。 该方法还包括在光纤介质内使用至少一个在前向和后向方向中的每一个中的空间滤波器来应用光纤介质内的多个空间模式来传输输入信号并对输入进行分布式故障检测 信号同时
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204.发明授权Rhombic-QPSK modulation for improved tolerance to nonlinearity in fiber communication systems 有权菱形QPSK调制，用于改善光纤通信系统中对非线性的容限公开(公告)号：US09385903B2
公开(公告)日：2016-07-05
申请号：US14456427
申请日：2014-08-11
Applicant: NEC Laboratories America, Inc.
Inventor： Eduardo Mateo Rodriquez , Fatih Yaman , Shaoliang Zhang , Ting Wang
CPC classification number: H04L27/2067 , H04B2201/709709 , H04L25/03343
Abstract: This invention proposes an alternative modulation format for channels that present improved performance when such channels co-propagate with existing intensity modulated channels. This modulation format is named Rhombic-QPSK (R-QPSK) and it is designed in such a way that it presents more tolerance to phase noise created by the nonlinear interaction with the legacy channels.
Abstract translation: 本发明提出了一种用于在这种信道与现有的强度调制信道共同传播时呈现改善的性能的信道的替代调制格式。 该调制格式被称为菱形QPSK（R-QPSK），并且它被设计成使得它对由与传统通道的非线性相互作用产生的相位噪声具有更大的容限。
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公开(公告)号：US09372113B2
公开(公告)日：2016-06-21
申请号：US14615525
申请日：2015-02-06
Applicant: NEC Laboratories America, Inc.
CPC classification number: G01J3/0218 , G01J3/10 , G01N21/255 , G01N2201/06113 , G01N2201/062 , G01N2201/08
Abstract: Active components in an optical spectroscopy based sensor are moved to a remote site and the light is guided between the remote site and the sensing site through optical fibers.
Abstract translation: 基于光谱学的传感器中的有源元件被移动到远程位置，并且通过光纤在远程位置和感测位置之间引导光。
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Patent Agency Ranking
206.发明授权Rate adaptive irregular QC-LDPC codes from pairwise balanced designs for ultra-high-speed optical transports 有权为超高速光传输的成对平衡设计率自适应不规则QC-LDPC码公开(公告)号：US09367387B2
公开(公告)日：2016-06-14
申请号：US14162951
申请日：2014-01-24
Applicant: NEC Laboratories America, Inc.
Inventor： Ivan B. Djordjevic , Ting Wang
CPC classification number: G06F11/10 , H03M13/033 , H03M13/112 , H03M13/116 , H03M13/1171 , H03M13/1177 , H03M13/255 , H04L1/0009
Abstract: Systems and methods for data transport include encoding one or more streams of input data using one or more Quasi-Cyclic Low Density Parity Check (QC-LDPC) encoders; controlling irregularity of the QC-LDPC encoded data while preserving the quasi-cyclic nature of the LDPC encoded data and eliminating the error floor phenomenon. A parity-check matrix may be partially reconfigured to adapt one or more code rates; and one or more signals are generated using a mapper, wherein the output of the mapper is modulated onto a transmission medium. One or more streams of input data are received, and the streams are decoded using one or more QC-LDPC decoders.
Abstract translation: 用于数据传输的系统和方法包括使用一个或多个准循环低密度奇偶校验（QC-LDPC）编码器来编码一个或多个输入数据流; 控制QC-LDPC编码数据的不规则性，同时保留LDPC编码数据的准循环性质并消除错误出现现象。 可以部分地重新配置奇偶校验矩阵以适应一个或多个码率; 并且使用映射器生成一个或多个信号，其中映射器的输出被调制到传输介质上。 接收一个或多个输入数据流，并且使用一个或多个QC-LDPC解码器解码流。
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207.发明申请Low Cost Secure Submarine ROADM Branching Unit Using Bidirectional Wavelength-Selective Switch 有权低成本安全潜艇ROADM分支单元使用双向波长选择开关公开(公告)号：US20160149663A1
公开(公告)日：2016-05-26
申请号：US14938771
申请日：2015-11-11
Applicant: NEC Laboratories America, Inc.
Inventor： Philip Nan Ji , Ryuji Aida , Ting Wang
CPC classification number: H04J14/0212 , H04J14/0204 , H04J14/0205 , H04J14/0216 , H04J14/0221
Abstract: A reconfigurable optical add/drop multiplexer (ROADM) unit includes a first optical circulator coupled to a first terminal; a second optical circulator coupled to a second terminal; a third optical circulator coupled to a third terminal; a fourth optical circulator coupled to a fourth terminal; a first wavelength-selective switch (WSS), coupled to the first, second, and third optical circulators; a second WSS coupled to the first, second, and fourth optical circulators, wherein the first and second WSSes are bidirectional operated; a first 1:2 coupler positioned between the first circulator and the first and second WSSes; a second 1:2 coupler positioned between the second circulator and the first and second WSSes.
Abstract translation: 可重新配置的光分插复用器（ROADM）单元包括耦合到第一终端的第一光循环器; 耦合到第二端子的第二光循环器; 耦合到第三端子的第三光循环器; 耦合到第四端子的第四光循环器; 耦合到第一，第二和第三光学循环器的第一波长选择开关（WSS）; 耦合到所述第一，第二和第四光学循环器的第二WSS，其中所述第一和第二WSS是双向操作的; 位于第一循环器和第一和第二WSS之间的第一1:2耦合器; 位于第二循环器和第一和第二WSS之间的第二1：2耦合器。
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208.发明授权Optimum signal constellation design and mapping for few-mode fiber based LDPC-coded CO-OFDM 有权用于基于多模光纤的LDPC编码CO-OFDM的最佳信号星座设计和映射公开(公告)号：US09203555B2
公开(公告)日：2015-12-01
申请号：US14179683
申请日：2014-02-13
Applicant: NEC Laboratories America, Inc.
Inventor： Ivan B Djordjevic , Ting Wang
CPC classification number: H04L1/0041 , H03M13/116 , H03M13/1177 , H03M13/255 , H03M13/271 , H03M13/2957 , H03M13/6325 , H04B10/2581 , H04B10/61 , H04J14/002 , H04L1/0045 , H04L1/0058 , H04L25/022 , H04L25/0224 , H04L25/025 , H04L25/0256 , H04L27/2626 , H04L27/2697 , H04L27/3405 , H04L27/362
Abstract: A system/method for data transport, including encoding one or more streams of input data using one or more Low Density Parity Check (LDPC) encoders; employing one or more signal constellations obtained using an optimum signal constellation design (OSCD); determining an optimum mapping rule by comparing cost functions of each of a plurality of mapping rules; combining one or more LDPC-coded OSCD signal constellation data streams with coherent optical-orthogonal frequency division multiplexing (CO-OFDM) coded modulation to achieve channel capacity; and mode-multiplexing and transmitting one or more independent LDPC-coded optimum signal constellation design (OSCD) data streams over a transmission medium.
Abstract translation: 一种用于数据传输的系统/方法，包括使用一个或多个低密度奇偶校验（LDPC）编码器编码一个或多个输入数据流; 采用使用最佳信号星座设计（OSCD）获得的一个或多个信号星座; 通过比较多个映射规则中的每一个的成本函数来确定最佳映射规则; 将一个或多个LDPC编码的OSCD信号星座数据流与相干光正交频分复用（CO-OFDM）编码调制组合以实现信道容量; 以及通过传输介质来模式复用和发送一个或多个独立的LDPC编码的最佳信号星座设计（OSCD）数据流。
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209.发明申请Hybrid Optical/Electrical Interconnect Network Architecture for Direct-connect Data Centers and High Performance Computers 审中-公开用于直连数据中心和高性能计算机的混合光/电互连网络架构公开(公告)号：US20150295756A1
公开(公告)日：2015-10-15
申请号：US14682382
申请日：2015-04-09
Applicant: NEC Laboratories America, Inc.
Inventor： Yawei Yin , Philip Ji , Konstantinos Kanonakis , Ting Wang
CPC classification number: H04Q11/0071 , H04L49/60 , H04Q2011/0081 , H04Q2011/0086 , H04Q2011/009
Abstract: The present invention proposes a hybrid optical/electrical network architecture for the direct-connect datacenters and HPC systems. It utilizes small scale optical switches in parallel with the electrical switching modules (e.g. the multi-port NIC) in the direct-connect electrical network (e.g 3D Torus) in order to provide optical bypassing capabilities. The optical network keeps the same topology as the electrical packet switching network, while the number of optical nodes can be equal or less than the electrical switching modules.
Abstract translation: 本发明提出了用于直连数据中心和HPC系统的混合光/电网络架构。 它利用与直接连接电网（例如3D环）中的电气开关模块（例如多端口NIC））并联的小规模光学开关，以提供光学旁路能力。 光网络保持与电子分组交换网络相同的拓扑结构，而光节点的数量可以等于或小于电气交换模块。
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公开(公告)号：US20150292944A1
公开(公告)日：2015-10-15
申请号：US14682363
申请日：2015-04-09
Applicant: NEC Laboratories America, Inc.
CPC classification number: G01J3/0297 , G01J3/0205 , G01J3/26 , G01J3/28 , G01J3/45
Abstract: An optical phase scrambler is coupled to a laser source to randomly modulate the optical phase. Since the optical phase is continuously changing in a random fashion, at the output of an etalon interferometer formed in the optical path, the two or more components in the interference always have certain time delay between each other, resulting in a random phase different between each other. Therefore, after interference, the fringe amplitude varies randomly as well. Then at the receiver side, the fringe noise is greatly reduced after averaging over time.
Abstract translation: 光学相位扰频器耦合到激光源以随机调制光学相位。 由于光学相位以随机方式连续变化，在形成于光路中的标准具干涉仪的输出处，干涉中的两个或更多个成分之间总是具有一定的时间延迟，导致每个 其他。 因此，干扰后，条纹幅度也随机变化。 然后在接收机侧，随着时间的推移，边缘噪声大大降低。
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