OPTICAL SYSTEM FOR SIGNAL AMPLIFICATION USING A MULTIMODE FIBER
    1.
    发明申请
    OPTICAL SYSTEM FOR SIGNAL AMPLIFICATION USING A MULTIMODE FIBER 审中-公开
    使用多模光纤进行信号放大的光学系统

    公开(公告)号:WO2013039939A3

    公开(公告)日:2013-05-02

    申请号:PCT/US2012054708

    申请日:2012-09-12

    Inventor: RYF ROLAND

    Abstract: An optical coupler for coupling optical-pump power into a multimode fiber configured to transport an optical space-division-multiplexed (SDM) signal, the coupling being performed in a manner that enables amplification of the SDM signal in the multimode fiber via a stimulated-emission process or a stimulated Raman- scattering process. The optical coupler can be a part of an optical transmitter configured for co-directional pumping, an optical receiver configured for contra- directional pumping, or a relay station disposed within an optical communication link and configured for either type of pumping. The optical coupler can advantageously be used, e.g., to offset the different degrees of attenuation to which the SDM-signal components corresponding to different guided modes of the multimode fiber are subjected to therein.

    Abstract translation: 一种光耦合器,用于将光泵浦功率耦合到被配置为传输光学空分复用(SDM)信号的多模光纤中,所述耦合以能够通过经刺激的多模光纤放大多模光纤中的SDM信号的方式执行, 发射过程或受激拉曼散射过程。 光耦合器可以是被配置为用于同向泵送的光发射器的一部分,被配置为用于反向泵浦的光接收器,或设置在光通信链路内并被配置用于任一类型的泵浦的中继站。 可以有利地使用光耦合器来例如抵消对应于多模光纤的不同导模的SDM信号分量的不同衰减程度。

    MULTIMODE OPTICAL COMMUNICATION
    2.
    发明申请
    MULTIMODE OPTICAL COMMUNICATION 审中-公开
    多模光通信

    公开(公告)号:WO2011126814A2

    公开(公告)日:2011-10-13

    申请号:PCT/US2011030248

    申请日:2011-03-29

    CPC classification number: H04B10/2581 H04B10/50 H04B10/60 H04J14/04 H04J14/06

    Abstract: An optical transmitter includes a set of optical waveguides and first, second, and third optical modulators. Output ends of the optical waveguides of the set form a two-dimensional array capable of end-coupling the optical waveguides of the set to a multimode optical fiber in response to the array being located to optically face one end of the multimode optical waveguide. The first optical modulator is optically connected to a first of the optical waveguides of the set, and each of the second and third optical modulators is optically connected to the second and third of the optical waveguides of the set. The set of optical waveguides is configured to provide a coupling matrix of rank three or more between the optical modulators and optical propagation modes in the multimode optical fiber.

    Abstract translation: 光发射机包括一组光波导和第一,第二和第三光调制器。 该组的光波导的输出端形成二维阵列,其能够响应于该阵列位于多模光波导的一端而将该组的光波导端接耦合至多模光纤。 第一光调制器光学地连接到该组的第一光波导中,并且第二和第三光调制器中的每一个光学连接到该组的第二和第三光波导。 该组光波导被配置为在多模光纤中提供光调制器和光传播模式之间的等级三或更多的耦合矩阵。

    IMAGING TERMINAL
    3.
    发明申请
    IMAGING TERMINAL 审中-公开
    成像终端

    公开(公告)号:WO2011071700A2

    公开(公告)日:2011-06-16

    申请号:PCT/US2010057971

    申请日:2010-11-24

    CPC classification number: H04N7/142 G03B15/10 G03B21/006 G03B21/60

    Abstract: An apparatus includes a state-switchable screen, a video camera, and a video projector. The video camera and projector are located on a side of the screen opposite to the side thereof of a video conference participant. The apparatus is configured to temporally interleave the screen between a substantially transparent state and a diffusive state. In the substantially transparent state, the video projector is configured to be outside of a viewing field of a video conference participant looking toward the video camera.

    Abstract translation: 一种装置包括状态切换屏幕,摄像机和视频投影仪。 摄像机和投影仪位于与视频会议参与者的侧面相对的屏幕的一侧。 该装置被配置为在基本上透明的状态和漫射状态之间临时交错屏幕。 在基本上透明的状态下,视频投影仪被配置为在视频会议参与者的视野外观看视频摄像机。

    OPTICAL MODE COUPLERS FOR MULTI-MODE OPTICAL FIBERS
    4.
    发明申请
    OPTICAL MODE COUPLERS FOR MULTI-MODE OPTICAL FIBERS 审中-公开
    用于多模光纤的光学模式耦合器

    公开(公告)号:WO2013039849A3

    公开(公告)日:2013-05-10

    申请号:PCT/US2012054543

    申请日:2012-09-11

    Inventor: RYF ROLAND

    CPC classification number: G02B6/4206 G02B6/262 G02B6/3598

    Abstract: An apparatus includes a first optical mode coupler having a spatial light modulator with a two-dimensional array of separately controllable optical phase modulators. The optical mode coupler is configurable to cause the spatial light modulator to couple a light source or light detector to an end-face of a multi-mode optical fiber via a plurality of light beams. Each of the light beams couples to a different one of optical modes in the multi- mode optical fiber.

    Abstract translation: 一种装置包括具有空间光调制器的第一光学模式耦合器,其具有可单独控制的光学相位调制器的二维阵列。 光学模式耦合器可配置成使空间光调制器经由多个光束将光源或光检测器耦合到多模光纤的端面。 每个光束耦合到多模光纤中不同的光模式。

    IMAGE PROJECTOR EMPLOYING A SPECKLE-REDUCING LASER SOURCE
    5.
    发明申请
    IMAGE PROJECTOR EMPLOYING A SPECKLE-REDUCING LASER SOURCE 审中-公开
    使用减光激光源的图像投影仪

    公开(公告)号:WO2010132623A3

    公开(公告)日:2011-04-14

    申请号:PCT/US2010034631

    申请日:2010-05-13

    Abstract: An image projector having one or more broadband lasers designed to reduce the appearance of speckle in the projected image via wavelength diversification. In one embodiment, a broadband laser has an active optical element and a nonlinear optical element, both located inside a laser cavity. The broadband laser generates an output spectrum characterized by a spectral spread of about 10 nm and having a plurality of spectral lines corresponding to different spatial modes of the cavity. Different individual spectral lines effectively produce independent speckle configurations, which become intensity-superimposed in the projected image, thereby causing a corresponding speckle-contrast reduction.

    Abstract translation: 一种具有一个或多个宽带激光器的图像投影仪,被设计成通过波长多样化来减少投影图像中斑点的出现。 在一个实施例中,宽带激光器具有位于激光腔内的有源光学元件和非线性光学元件。 宽带激光器产生特征在于约10nm的光谱扩展并具有对应于空腔的不同空间模式的多个光谱线的输出光谱。 不同的单独光谱线有效地产生独立的斑点配置,其在投影图像中变得强度叠加,从而导致相应的斑点对比度降低。

    A MONITOR HAVING INTEGRAL CAMERA AND METHOD OF OPERATING THE SAME
    6.
    发明申请
    A MONITOR HAVING INTEGRAL CAMERA AND METHOD OF OPERATING THE SAME 审中-公开
    具有一体化摄像机的监视器及其操作方法

    公开(公告)号:WO2010033175A3

    公开(公告)日:2010-06-17

    申请号:PCT/US2009005145

    申请日:2009-09-15

    CPC classification number: H04N7/144 G02F1/133 G02F2001/13312

    Abstract: As discussed herein, there is presented a visual communication system, a method of conducting two-way visual communication and an apparatus. In one embodiment, the apparatus includes: (1) a lens substrate having a first array of micro lenses on one side thereof, (2) an optical output substrate having a second array of display pixels and (3) an optical input substrate having a third array of image sensors laterally inter-dispersed with respect to display pixels of the first array and positioned to receive light from the micro lenses of the first array.

    Abstract translation: 如本文所讨论的,提出了可视通信系统,进行双向可视通信的方法和装置。 在一个实施例中,该装置包括:(1)透镜基板,其一侧具有第一微透镜阵列,(2)具有第二阵列显示像素的光输出基板,以及(3)光输入基板, 第三阵列的图像传感器相对于第一阵列的显示像素横向分散并且被定位成接收来自第一阵列的微透镜的光。

    SYSTEM AND METHOD FOR IMAGE STABILIZATION IN VIDEOCONFERENCING
    8.
    发明申请
    SYSTEM AND METHOD FOR IMAGE STABILIZATION IN VIDEOCONFERENCING 审中-公开
    用于视频图像稳定的系统和方法

    公开(公告)号:WO2014004013A1

    公开(公告)日:2014-01-03

    申请号:PCT/US2013044409

    申请日:2013-06-06

    Applicant: ALCATEL LUCENT

    CPC classification number: G09G3/005 H04N7/142

    Abstract: A terminal comprises a display substrate and an actuator configured to move the display substrate in a cyclic movement over a viewing area. A proximity sensor is configured to generate detection signals. An image controller, configured to receive the detection signal, calculates a cycle time of the cyclic movement of the display substrate and controls at least one of a transmission rate of the display data to the display substrate and the movement of the display substrate caused by the actuator.

    Abstract translation: 终端包括显示基板和致动器,其构造成在显示区域上以循环运动移动显示基板。 接近传感器被配置为产生检测信号。 被配置为接收检测信号的图像控制器计算显示基板的循环移动的周期时间,并且控制显示数据到显示基板的传输速率和由显示基板引起的显示基板的移动中的至少一个 执行器。

    OPTICAL FEED-FORWARD EQUALIZER FOR MIMO SIGNAL PROCESSING
    9.
    发明申请
    OPTICAL FEED-FORWARD EQUALIZER FOR MIMO SIGNAL PROCESSING 审中-公开
    用于MIMO信号处理的光学进给均衡器

    公开(公告)号:WO2013134450A8

    公开(公告)日:2014-07-17

    申请号:PCT/US2013029477

    申请日:2013-03-07

    Applicant: ALCATEL LUCENT

    Inventor: RYF ROLAND

    CPC classification number: H04B10/6971 G02B6/29358 G02B6/29395 H04B10/615

    Abstract: A feed-forward equalizer can be used in the host optical receiver to perform at least some of the desired signal processing in the optical domain, e.g., prior to coherently detecting and digitizing the received optical signal(s). In some embodiments, the signal processing implemented in the feed-forward equalizer can at least partially compensate the adverse effects of chromatic dispersion, polarization-mode dispersion, and/or spatial-mode mixing/crosstalk imparted on the received optical signal(s) in the optical transport link. This reduces the signal-processing load of and the signal-processing requirements to the receiver's electrical DSP.

    Abstract translation: 在主机光接收机中可以使用前馈均衡器来执行光域中的所需信号处理中的至少一些,例如在相干检测和数字化所接收的光信号之前。 在一些实施例中,在前馈均衡器中实现的信号处理可以至少部分地补偿在接收的光信号上施加的色散,偏振模色散和/或空间模式混合/串扰的不利影响 光传输链路。 这将信号处理负载和信号处理要求降低到接收机的电气DSP。

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