公开(公告)号：WO2017210000A1

公开(公告)日：2017-12-07

申请号：PCT/US2017/033741

申请日：2017-05-22

Applicant: ALCATEL-LUCENT USA INC.

Inventor： KANEDA, Noriaki

IPC: G01S17/10 ,  G01S17/58 ,  G01S7/483

Abstract: We disclose a lidar system, that includes a modulator-based probe-light generator and a coherent optical receiver. The probe-light generator uses tunable carrier-suppressed single-sideband modulation to generate frequency-chirped optical pulses for the optical-probe beam directed at the target. The coherent optical receiver uses a homodyne detection scheme in which a split portion of the optical-probe beam is used as an optical local oscillator signal for detecting a corresponding optical beam reflected by the target. The resulting electrical RF signals generated by the receiver can be processed, e.g., using a disclosed signal-processing method, to determine one or both of the distance to the target and the velocity of the target.

Abstract translation: 我们公开了一种激光雷达系统，其包括基于调制器的探测光发生器和相干光接收器。 探测光发生器使用可调载波抑制的单边带调制来产生针对目标的光探测光束的频率啁啾光脉冲。 相干光接收器使用零差检测方案，其中将光探测光束的分离部分用作光本地振荡器信号，以检测由目标反射的相应光束。 可以例如使用所公开的信号处理方法来处理由接收器产生的所得到的电RF信号以确定到目标​​的距离和目标的速度中的一个或两者。

公开(公告)号：WO2017139311A1

公开(公告)日：2017-08-17

申请号：PCT/US2017/016910

申请日：2017-02-08

Applicant: ALCATEL-LUCENT USA INC.

Inventor： KANEDA, Noriaki

IPC: H04B10/61 ,  H04B10/69

CPC classification number: H04L7/0075 ,  H04B10/6165 ,  H04B10/697 ,  H04J14/02 ,  H04J14/04 ,  H04J14/06 ,  H04L7/0331

Abstract: We disclose an optical receiver for direct detection of an intensity-modulated optical signal, the digital signal processor of which employs a clock-recovery circuit capable of reliably recovering the internal clock of the received optical signal without relying on dispersion-compensation processing even if the signal's eye pattern is substantially closed. In an example embodiment, the clock-recovery circuit comprises a frequency-domain phase detector that operates to determine and track in time the sampling phase using only a subset of the digital spectral components corresponding to the received optical signal. The determined sampling phase is then used to synchronize the digital electrical samples of the received optical signal with the internal clock thereof by way of digital interpolation or through appropriate control of the sampling frequency and phase of the receiver's analog-to- digital converter. Some embodiments of the clock-recovery circuit can beneficially be used in a two-channel optical receiver.

Abstract translation: 我们公开了一种用于直接检测强度调制光信号的光接收器，其数字信号处理器采用能够可靠地恢复接收到的光信号的内部时钟的时钟恢复电路，而不依赖于 在色散补偿处理中，即使信号的眼图基本上闭合。 在示例实施例中，时钟恢复电路包括频域相位检测器，该频域相位检测器用于仅使用对应于所接收的光信号的数字频谱分量的子集来及时确定和追踪采样相位。 所确定的采样相位然后用于通过数字内插或通过适当控制接收器的模数转换器的采样频率和相位来同步接收的光信号的数字电采样与其内部时钟。 时钟恢复电路的一些实施例可以有利地用于双通道光接收器中。

公开(公告)号：WO2017079184A1

公开(公告)日：2017-05-11

申请号：PCT/US2016/059971

申请日：2016-11-02

Applicant: ALCATEL-LUCENT USA INC.

Inventor： CHEN, Young-kai ,  KANEDA, Noriaki ,  LEE, Sian, Chong ,  ZIRNGIBL, Martin

IPC: H04J14/02 ,  H04B10/07

CPC classification number: H04J14/0257 ,  H04B10/07 ,  H04B10/07953 ,  H04B10/40 ,  H04B10/541 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0258

Abstract: Various embodiments relate to a method, device, and machine-readable storage medium including: an optical modem, the optical modem being configured to negotiate a format of an optical communication session with a remote optical transceiver via an optical fiber link; and wherein the optical modem is configured to select a transmission optical wavelength channel for transmitting data of the optical communication session in response to sensing the optical fiber link for light emission and determining that the transmission optical wavelength channel is unused based on the sensing.

Abstract translation: 各种实施例涉及一种方法，设备和机器可读存储介质，其包括：光学调制解调器，所述光学调制解调器被配置为经由远程光学收发器来协商与光学通信会话的格式 光纤链路; 并且其中所述光学调制解调器被配置为响应于感测到所述光纤链路发光并且基于所述感测确定所述传输光学波长信道未被使用而选择用于传输所述光通信会话的数据的传输光学波长信道。 p>

公开(公告)号：WO2012006209A1

公开(公告)日：2012-01-12

申请号：PCT/US2011/042562

申请日：2011-06-30

Applicant: ALCATEL-LUCENT USA INC. ,  LGS INNOVATIONS LLC. ,  CHEN, Young-kai ,  KANEDA, Noriaki ,  PIDWERBETSKY, Alex

Inventor： CHEN, Young-kai ,  KANEDA, Noriaki ,  PIDWERBETSKY, Alex

IPC: H04B10/10

CPC classification number: H04B10/1121 ,  H04B10/613

Abstract: An approach is provided that uses diversity to compensate fading of free-space optical (FSO) signals propagating through an environment characterized by atmospheric scintillation. One embodiment involves collecting at least one FSO beam, demultiplexing the beam by wavelength into at least two sub-beams, detecting each sub- beam to produce an electrical output therefrom, and recovering a signal using complementary information from at least two of the electrical outputs. Another embodiment involves collecting the FSO beam onto an array of spatially separated sub- apertures, detecting the light entering each sub-aperture to produce an electrical output therefrom, and recovering a signal using complementary information from at least two of the electrical outputs. This second embodiment enables both electronic adaptive processing to coherently integrate across the sub-apertures and in the case of multiple transmit apertures a free space optical Multiple Input Multiple Output (MIMO) system.

Abstract translation: 提供了一种使用分集来补偿通过大气闪烁特征的环境传播的自由空间光（FSO）信号的衰落的方法。 一个实施例涉及收集至少一个FSO波束，通过波长将波束解复用为至少两个子波束，检测每个子波束以产生电子输出，以及使用来自至少两个电输出的补充信息来恢复信号 。 另一实施例涉及将FSO光束收集到空间上分离的子孔阵列上，检测进入每个子孔径的光以产生电输出，以及使用来自至少两个电输出的互补信息来恢复信号。 该第二实施例使得电子自适应处理能够在子孔径之间相干地集成，并且在多个发射孔径的情况下使得自由空间光学多输入多输出（MIMO）系统。