公开(公告)号：US08831427B2

公开(公告)日：2014-09-09

申请号：US11993270

申请日：2006-04-26

Applicant: Jelena Grubor ,  Volker Jungnickel ,  Klaus-Dieter Langer ,  Clemens Von Helmolt

Inventor： Jelena Grubor ,  Volker Jungnickel ,  Klaus-Dieter Langer ,  Clemens Von Helmolt

IPC: H04B10/00 ,  H04B10/12 ,  H04B17/00 ,  H04B10/114

CPC classification number: H04B10/1143

Abstract: An adaptive signal processing method to achieve an increase in capacity of data transfer systems, in which control data is returned via a backward channel. The method provides signal processing using an electrical sub-carrier sub-division according to frequency, the electrical sub-carrier with the lowest carrier frequency being permanently used as the backward channel (RC) for transferring control information relating to the current transfer quality of each sub-carrier. An electrical modulation on N parallel sub-carriers takes place in the transmitter (Tx) and then an optical intensity modulation is carried out for a serial data transfer in the optical channel (IRWC). The discrete division of the information to be transferred to the sub-carriers in a real-time operation can take place by the implementation of specific bit-loading algorithms.

Abstract translation: 一种自适应信号处理方法，用于实现数据传送系统的容量增加，其中通过反向信道返回控制数据。 该方法使用根据频率的电子载波子分割提供信号处理，具有最低载波频率的电子载波被永久用作反向信道（RC），用于传送与每个信道的当前传输质量有关的控制信息 子载体 在N个并行子载波上的电调制发生在发射机（Tx）中，然后对光信道（IRWC）中的串行数据传输进行光强度调制。 通过实施特定的比特加载算法，可以在实时操作中转移到子载波上的信息的离散划分。

公开(公告)号：US08817366B2

公开(公告)日：2014-08-26

申请号：US13394684

申请日：2009-09-07

Applicant: Lutz Rapp

Inventor： Lutz Rapp

IPC: H04B10/17 ,  H04B10/12

CPC classification number: H01S3/06758 ,  H01S3/06725 ,  H01S3/094061 ,  H01S3/10015 ,  H01S3/1301 ,  H04B10/2942

Abstract: An optical amplifier with improved transient performance has two amplifier stages and a dispersion compensating fiber inserted between the amplifier stages. A control unit generates a pump control signal for a common pump source pumping both amplifier stages via a power splitter. The pump control signal has a feedforward component with a delayed reaction. A feedforward delay time is adjusted to minimize gain variations resulting from input power drops. In a preferred embodiment, the splitting ratio of the power splitter is adjustable to achieve, for instance, either optimum steady-state performance or optimum transient performance.

Abstract translation: 具有改善的瞬态性能的光放大器具有两个放大器级和插入在放大器级之间的色散补偿光纤。 控制单元产生用于通过功率分配器泵浦两个放大器级的公共泵浦泵的泵控制信号。 泵控制信号具有延迟反应的前馈分量。 调整前馈延迟时间以最小化由输入功率下降导致的增益变化。 在优选实施例中，功率分配器的分流比是可调节的，以实现例如最佳稳态性能或最佳瞬态性能。

公开(公告)号：US08817365B2

公开(公告)日：2014-08-26

申请号：US13552864

申请日：2012-07-19

Applicant: Tomer Eliyahu ,  Eyal Sarid ,  Uri Ghera ,  David Menashe

Inventor： Tomer Eliyahu ,  Eyal Sarid ,  Uri Ghera ,  David Menashe

IPC: H04B10/17 ,  H01S3/30 ,  H04B10/291 ,  H01S3/067 ,  H04B10/12 ,  H01S3/16 ,  H01S3/23

CPC classification number: H01S3/30 ,  H01S3/06758 ,  H01S3/1608 ,  H01S3/2375 ,  H01S3/302 ,  H01S2301/02 ,  H01S2301/04 ,  H04B10/2914 ,  H04B10/2916

Abstract: Methods for optimizing a noise figure of a variable gain hybrid amplifier (HA) which includes a variable gain Raman amplifier with adjustable average gain GR and gain tilt TR and a variable gain lumped amplifier with adjustable average gain GL and gain tilt TL. In various embodiments, the methods include receiving as input a required hybrid amplifier average gain GH value and a required gain tilt TH value and deriving a set of GR, TR, GL and TL values which yield an optimal optimized hybrid amplifier NF and satisfy the conditions GR+GL=GH and that TR+TL is within a specified hybrid amplifier operating tilt range. In some embodiments, the derived TR and TL values satisfy the condition TR+TL=TH.

Abstract translation: 用于优化可变增益混合放大器（HA）的噪声系数的方法，其包括具有可调平均增益GR和增益倾斜TR的可变增益拉曼放大器和具有可调平均增益GL和增益倾斜TL的可变增益集总放大器。 在各种实施例中，所述方法包括接收所需的混合放大器平均增益GH值和所需增益倾斜TH值作为输入，并导出一组GR，TR，GL和TL值，其产生最佳优化的混合放大器NF并满足条件 GR + GL = GH，TR + TL在规定的混合放大器工作倾斜范围内。 在一些实施例中，导出的TR和TL值满足条件TR + TL = TH。

公开(公告)号：US08798454B2

公开(公告)日：2014-08-05

申请号：US12824998

申请日：2010-06-28

Applicant: Youichi Akasaka

Inventor： Youichi Akasaka

IPC: G02F1/00 ,  G02F2/00 ,  H01S3/00 ,  H04B10/00 ,  H04J14/00 ,  H04B10/12

CPC classification number: H04J14/0256 ,  H04J14/0201 ,  H04J14/0267 ,  H04J14/0268 ,  H04Q2213/1301 ,  H04Q2213/13332

Abstract: Systems and methods for distributing signals in an optical network are disclosed. In accordance with one embodiment of the present disclosure a method for distributing signals in an optical network comprises combining input signals into one or more output signals, determining, an availability status of optical lanes for carrying the output signals and distributing the output signals to optical transmitters associated with the optical lanes if the availability status indicates that the optical lanes are available. The method further comprises, transmitting the output signals as optical signals using the optical transmitters associated with the lanes that are available and determining that a previously available optical lane is not available for carrying the output signals, terminating distribution of the output signals to the optical transmitter associated with the lane that is not available and redistributing the output signals to the plurality of transmitters associated with the lanes that are still available.

Abstract translation: 公开了在光网络中分配信号的系统和方法。 根据本公开的一个实施例，用于在光网络中分配信号的方法包括将输入信号组合成一个或多个输出信号，确定用于承载输出信号的光学通路的可用性状态，并将输出信号分配给光发送器 如果可用性状态指示光学通道可用，则与光学通道相关联。 该方法还包括：使用与可用的通道相关联的光发射机将输出信号作为光信号发送，并且确定先前可用的光通道不可用于承载输出信号，将输出信号分配到光发射机 与不可用的通道相关联并且将输出信号重新分配到与仍然可用的车道相关联的多个发射器。

公开(公告)号：US08767285B2

公开(公告)日：2014-07-01

申请号：US13123890

申请日：2008-10-23

Applicant: Roberto Magri ,  Gianmarco Bruno

Inventor： Roberto Magri ,  Gianmarco Bruno

IPC: H04B10/12 ,  H04B10/17 ,  H01S3/30

CPC classification number: H01S3/06758 ,  H01S3/10015 ,  H01S3/10069 ,  H01S3/1608 ,  H01S3/2375 ,  H01S3/302 ,  H01S2301/02 ,  H01S2301/04 ,  H04B10/2942

Abstract: A method of compensating for channel power depletion induced by Raman amplification noise in a hybrid distributed Raman amplifier-Erbium doped fiber amplifier. In the method, an equivalent noise figure is determined for a virtual amplifier equivalent to the hybrid distributed Raman amplifier-Erbium doped fiber amplifier, and having an input power equal to the input power of the Erbium doped fiber amplifier when the distributed Raman amplifier is off and an output power equal to the Erbium doped fiber amplifier output power. A compensation power, dependent at least in part upon the equivalent noise figure, is determined. A control signal is provided for controlling the hybrid amplifier such that an optical signal amplified by the hybrid amplifier has a total output power equal to a predetermined nominal output power plus the compensation power.

Abstract translation: 一种在混合分布式拉曼放大器 - 掺铒光纤放大器中补偿由拉曼放大噪声引起的信道功耗的方法。 在该方法中，对于等效于混合分布式拉曼放大器 - 掺铒光纤放大器的虚拟放大器确定等效噪声系数，并且当分布式拉曼放大器关闭时，其输入功率等于掺铒光纤放大器的输入功率 输出功率等于掺铒光纤放大器的输出功率。 确定至少部分依赖于等效噪声系数的补偿功率。 提供控制信号以控制混合放大器，使得由混合放大器放大的光信号具有等于预定标称输出功率加上补偿功率的总输出功率。

公开(公告)号：US08724999B2

公开(公告)日：2014-05-13

申请号：US13446306

申请日：2012-04-13

Applicant: Neda Cvijetic ,  Yue-Kai Huang ,  Narayan Prasad ,  Ting Wang

Inventor： Neda Cvijetic ,  Yue-Kai Huang ,  Narayan Prasad ,  Ting Wang

IPC: H04J14/02 ,  H04B10/00 ,  H04B10/04 ,  H04B10/12 ,  H04B10/06

CPC classification number: H04J14/06 ,  H04B10/532 ,  H04B10/548 ,  H04J14/02 ,  H04L5/0023 ,  H04L25/0204 ,  H04L27/2096 ,  H04L27/223 ,  H04L27/2697 ,  H04L2025/03414 ,  H04L2025/03426

Abstract: An optical communication system includes a polarization multiplexed orthogonal frequency-division multiplexing POLMUX-OFDM transmitter for generating a POLMUX-OFDM double sideband signal, an optical processing path for processing the double sideband signal from the transmitter; an analog-to-digital convert ADC-OFDM receiver coupled to the optical processing path for receiving the double sideband signal processed by the optical path; and a block-diagonal multiple-input multiple-output MIMO equalizer responsive to the receiver for enabling correct operation for a completely random incoming signal polarization state without adaptive polarization control at said receiver, which enables complexity.

Abstract translation: 光通信系统包括用于产生POLMUX-OFDM双边带信号的偏振复用正交频分复用POLMUX-OFDM发射机，用于处理来自发射机的双边带信号的光处理路径; 耦合到光学处理路径的用于接收由光路处理的双边带信号的模数转换ADC-OFDM接收器; 以及响应于接收机的块对角多输入多输出MIMO均衡器，用于使能在所述接收机处没有自适应偏振控制的完全随机输入信号偏振状态的正确操作，这使得复杂性。

公开(公告)号：US20140099125A1

公开(公告)日：2014-04-10

申请号：US13645627

申请日：2012-10-05

Applicant: APPLIED MICRO CIRCUITS CORPORATION

Inventor： Benoit Sevigny

IPC: H04B10/12

CPC classification number: H04B10/2504 ,  G02B13/08 ,  G02B19/0014 ,  G02B19/0085 ,  G02B27/30 ,  H04B10/25

Abstract: An optical system and method disclosed include a first lens component and a second lens component within the receive path or the transmit path. The first lens component includes at least two aspheric surfaces that oppose one another and generate a collimated beam channel. The second lens component generates a converging beam and magnifies the converging beam with a magnification factor that is different from a magnification factor in the other path, either the receive path or the transmit path. The receive path and the transmit path include symmetrical lengths and asymmetrical magnification factors.

Abstract translation: 所公开的光学系统和方法包括在接收路径或发射路径内的第一透镜部件和第二透镜部件。 第一透镜部件包括至少两个彼此相对的非球面，并产生准直的光束通道。 第二透镜部件产生会聚光束，并以不同于另一路径（即接收路径或发送路径）中的放大因子的放大倍率来放大会聚光束。 接收路径和发送路径包括对称长度和不对称放大系数。

公开(公告)号：US08693878B2

公开(公告)日：2014-04-08

申请号：US13131884

申请日：2009-11-27

Applicant: Tim C. W. Schenk ,  Lorenzo Feri ,  Peter Deixler

Inventor： Tim C. W. Schenk ,  Lorenzo Feri ,  Peter Deixler

IPC: H04B10/00 ,  H04B10/04 ,  H04B10/12 ,  H05B37/00 ,  H04B10/50 ,  H04B10/114 ,  H04B10/112

CPC classification number: H04B10/505 ,  H04B10/1125 ,  H04B10/1143 ,  H04B10/1149 ,  H04B10/504 ,  H05B33/0809 ,  H05B33/083

Abstract: The invention relates to an illumination device connectable to an AC voltage source for applying an alternating voltage during a series of time intervals. The illumination device comprises at least a first light source and a second light source, arranged to be connected in series to the AC voltage source, to generate a luminance output in response to the alternating voltage. Selection means are provided configured for selectively applying the alternating voltage over the first light source or the first and second light source. A controller is provided for controlling the selection means in response to a data signal comprising data symbols such that one or more of the data symbols are contained in said luminance output. The invention also relates to a method of embedding one or more data symbols in the luminance output of such an illumination device, an optical receiver and an illumination system.

Abstract translation: 本发明涉及可连接到AC电压源的照明装置，用于在一系列时间间隔内施加交流电压。 所述照明装置至少包括第一光源和第二光源，所述第一光源和第二光源被布置为与AC电压源串联连接，以响应于所述交流电压产生亮度输出。 提供了选择装置，其被配置用于选择性地在第一光源或第一和第二光源上施加交流电压。 提供控制器，用于响应于包括数据符号的数据信号来控制选择装置，使得一个或多个数据符号包含在所述亮度输出中。 本发明还涉及在这种照明装置，光接收器和照明系统的亮度输出中嵌入一个或多个数据符号的方法。

公开(公告)号：US08682173B1

公开(公告)日：2014-03-25

申请号：US13268217

申请日：2011-10-07

Applicant: Nathan D. Hiller

Inventor： Nathan D. Hiller

IPC: H04B10/12 ,  H04B10/08 ,  H04B17/00 ,  H04B10/00 ,  H04B13/02 ,  H04B10/06

CPC classification number: H04B10/071 ,  H04B11/00 ,  H04B13/02

Abstract: A particular method includes applying light pulses to an optical fiber and receiving backscattered light at a phase-sensitive optical time domain reflectometry (OTDR) device. The backscattered light includes portions of the applied light pulses that are backscattered by the optical fiber. The method also includes determining a difference between the backscattered light and a backscatter pattern associated with the optical fiber. The method also includes determining a communication signal encoded in the backscattered light based on the difference, where the communication signal is encoded in the backscattered light responsive to mechanical waves applied to the optical fiber at a location remote from the phase-sensitive OTDR device.

Abstract translation: 具体的方法包括将光脉冲施加到光纤并在相敏光时域反射仪（OTDR）装置处接收反向散射光。 后向散射光包括由光纤反向散射的所施加的光脉冲的部分。 该方法还包括确定反向散射光与与光纤相关联的反向散射图案之间的差异。 该方法还包括基于差异来确定在后向散射光中编码的通信信号，其中响应于在远离相敏OTDR设备的位置处施加到光纤的机械波，在后向散射光中对通信信号进行编码。

公开(公告)号：US08681916B2

公开(公告)日：2014-03-25

申请号：US13471032

申请日：2012-05-14

Applicant: Oliver Braz ,  Stefan Eisenwinter ,  Mathias Schmalisch ,  Joerg Stefanik ,  Peter Schmid

Inventor： Oliver Braz ,  Stefan Eisenwinter ,  Mathias Schmalisch ,  Joerg Stefanik ,  Peter Schmid

IPC: H04L7/06 ,  H04B1/38 ,  H04B10/12 ,  H04L27/26 ,  H04J14/00

CPC classification number: H04W88/085 ,  H04L7/06

Abstract: A master unit and a remote unit is provided for a multiband transmission system for distributing and combining signals of at least one wireless communication network and at least one digital network. A reference frequency generator is arranged in the master unit, the reference frequency generator being designed to clock a master modem for converting the signals of the at least one digital network. The reference frequency signal emitted by the reference frequency signal is restored via a reference frequency receiver and is used for closing a remote modem that is located there for demodulation.

Abstract translation: 提供主单元和远程单元用于多频带传输系统，用于分配和组合至少一个无线通信网络和至少一个数字网络的信号。 参考频率发生器被布置在主单元中，参考频率发生器被设计为对主调制解调器进行计时以转换至少一个数字网络的信号。 由参考频率信号发射的参考频率信号通过参考频率接收机恢复，并用于关闭位于那里的远程调制解调器进行解调。