Dopant profile control for high speed silicon-based optical modulators
    11.
    发明授权
    Dopant profile control for high speed silicon-based optical modulators 有权
    高速硅基光调制器的掺杂分布控制

    公开(公告)号:US08363986B2

    公开(公告)日:2013-01-29

    申请号:US13029342

    申请日:2011-02-17

    CPC classification number: G02B6/12 G02B6/26 G02B26/00 G02F1/025

    Abstract: A high speed silicon-based optical modulator with control of the dopant profiles in the body and gate regions of the device reduces the series resistance of the structure without incurring substantial optical power loss. That is, the use of increased dopant values in areas beyond the active region will allow for the series resistance to be reduced (and thus increase the modulating speed of the device) without incurring too large a penalty in signal loss. The dopant profiles within the gate and body regions are tailored to exhibit an intermediate value between the high dopant concentration in the contact areas and the low dopant concentration in the carrier integration window area.

    Abstract translation: 具有控制器件的主体和栅极区域中的掺杂剂分布的高速硅基光学调制器降低了结构的串联电阻而不会引起实质的光功率损耗。 也就是说,在有源区域之外的区域中使用增加的掺杂剂值将允许降低串联电阻(从而增加器件的调制速度),而不会在信号损失中造成太大的惩罚。 调整栅极和体区内的掺杂剂分布,以显示接触区域中的高掺杂剂浓度与载流子集成窗口区域中的低掺杂剂浓度之间的中间值。

    HDMI TMDS optical signal transmission using PAM technique
    12.
    发明授权
    HDMI TMDS optical signal transmission using PAM technique 有权
    使用PAM技术的HDMI TMDS光信号传输

    公开(公告)号:US08340529B2

    公开(公告)日:2012-12-25

    申请号:US12813562

    申请日:2010-06-11

    CPC classification number: H04N7/22 G09G5/006 G09G2370/12 G09G2370/18

    Abstract: An HDMI interconnect arrangement is presented that performs a pulse-amplitude modulation (PAM) conversion of the TMDS audio/video signals in order to simultaneously transmit all three channels over a single optical fiber. The set of three audio/video TMDS channels is applied as an input to a PAM-8 optical modulator, which functions to encode the set of three channels onto an optically-modulated output signal. The modulated optical signal is thereafter coupled into an optical fiber within an active HDMI cable and transmitted to an HDMI receiver (sink). The TMDS CLK signal is not included in this conversion into the optical domain, but remains as a separate electrical signal to be transmitted along a copper signal path within the active HDMI cable.

    Abstract translation: 呈现HDMI互连布置,其执行TMDS音频/视频信号的脉冲幅度调制(PAM)转换,以便通过单根光纤同时传输所有三个通道。 三组音频/视频TMDS通道的组合被用作PAM-8光调制器的输入,PAM-8光调制器用于将三个通道的组合编码到光调制的输出信号上。 调制的光信号此后耦合到有源HDMI电缆中的光纤中,并被传输到HDMI接收器(接收器)。 TMDS CLK信号不包含在该转换到光学域中,而是作为单独的电信号保持在有源HDMI电缆内的铜信号路径上传输。

    Advanced modulation formats for silicon-based optical modulators
    13.
    发明授权
    Advanced modulation formats for silicon-based optical modulators 有权
    用于硅基光学调制器的高级调制格式

    公开(公告)号:US08320720B2

    公开(公告)日:2012-11-27

    申请号:US12856144

    申请日:2010-08-13

    Abstract: A silicon-based optical modulator is configured as a multi-segment device that utilizes a modified electrical data input signal format to address phase modulation nonlinearity and attenuation problems associated with free-carrier dispersion-based modulation. The modulator is formed to include M separate segments and a digital signal encoder is utilized to convert an N bit input data signal into a plurality of M drive signals for the M modulator segments, where M≧2N/2. The lengths of the modulator segments may also be adjusted to address the nonlinearity and attenuation problems. Additional phase adjustments may be utilized at the output of the modulator (beyond the combining waveguide).

    Abstract translation: 硅基光调制器被配置为多段装置,其利用修改的电数据输入信号格式来解决与自由载波色散调制相关的相位调制非线性和衰减问题。 调制器被形成为包括M个单独的段,并且使用数字信号编码器将N位输入数据信号转换成用于M个调制器段的多个M个驱动信号,其中M≥N2N / 2。 调制器段的长度也可以被调整以解决非线性和衰减问题。 可以在调制器的输出(超过组合波导)的情况下使用附加的相位调整。

    Advanced Modulation Formats for Silicon-Based Optical Modulators
    15.
    发明申请
    Advanced Modulation Formats for Silicon-Based Optical Modulators 有权
    基于硅的光学调制器的高级调制格式

    公开(公告)号:US20110044573A1

    公开(公告)日:2011-02-24

    申请号:US12856144

    申请日:2010-08-13

    Abstract: A silicon-based optical modulator is configured as a multi-segment device that utilizes a modified electrical data input signal format to address phase modulation nonlinearity and attenuation problems associated with free-carrier dispersion-based modulation. The modulator is formed to include M separate segments and a digital signal encoder is utilized to convert an N bit input data signal into a plurality of M drive signals for the M modulator segments, where M≧2N/2. The lengths of the modulator segments may also be adjusted to address the nonlinearity and attenuation problems. Additional phase adjustments may be utilized at the output of the modulator (beyond the combining waveguide).

    Abstract translation: 硅基光调制器被配置为多段设备,其利用修改的电数据输入信号格式来解决与自由载波色散调制相关的相位调制非线性和衰减问题。 调制器被形成为包括M个单独的段,并且使用数字信号编码器将N位输入数据信号转换成用于M个调制器段的多个M个驱动信号,其中M≥N2N / 2。 调制器段的长度也可以被调整以解决非线性和衰减问题。 可以在调制器的输出(超过组合波导)的情况下使用附加的相位调整。

    Soi-based tunable laser
    16.
    发明申请
    Soi-based tunable laser 有权
    基于Soi的可调谐激光器

    公开(公告)号:US20090135861A1

    公开(公告)日:2009-05-28

    申请号:US12291246

    申请日:2008-11-06

    Abstract: A silicon-on-insulator (SOI)-based tunable laser is formed to include the gain medium (such as a semiconductor optical amplifier) disposed within a cavity formed within the SOI substrate. A tunable wavelength reflecting element and associated phase matching element are formed on the surface of the SOI structure, with optical waveguides formed in the surface SOI layer providing the communication between these components. The tunable wavelength element is controlled to adjust the optical wavelength. Separate discrete lensing elements may be disposed in the cavity with the gain medium, providing efficient coupling of the optical signal into the SOI waveguides. Alternatively, the gain medium itself may be formed to include spot converting tapers on its endfaces, the tapers used to provide mode matching into the associated optical waveguides.

    Abstract translation: 形成绝缘体上硅(SOI)的可调谐激光器以包括设置在形成于SOI衬底内的空腔内的增益介质(例如半导体光放大器)。 在SOI结构的表面上形成可调波长反射元件和相关的相位匹配元件,其中形成在表面SOI层中的光波导提供这些部件之间的连通。 可调波长元件被控制以调节光学波长。 单独的离散透镜元件可以用增益介质设置在空腔中,从而提供光信号到SOI波导的有效耦合。 或者,增益介质本身可以被形成为包括其端面上的点变换锥度,用于向相关联的光波导提供模式匹配的锥度。

    Silicon modulator offset tuning arrangement
    17.
    发明申请
    Silicon modulator offset tuning arrangement 有权
    硅调制器偏移调谐布置

    公开(公告)号:US20070292075A1

    公开(公告)日:2007-12-20

    申请号:US11810591

    申请日:2007-06-06

    CPC classification number: G02F1/025 G02F1/0147 G02F1/225 G02F2201/126

    Abstract: A silicon-based optical modulator structure includes one or more separate localized heating elements for changing the refractive index of an associated portion of the structure and thereby providing corrective adjustments to address unwanted variations in device performance. Heating is provided by thermo-optic devices such as, for example, silicon-based resistors, silicide resistors, forward-biased PN junctions, and the like, where any of these structures may easily be incorporated with a silicon-based optical modulator. The application of a DC voltage to any of these structures will generate heat, which then transfers into the waveguiding area. The increase in local temperature of the waveguiding area will, in turn, increase the refractive index of the waveguiding in the area. Control of the applied DC voltage results in controlling the refractive index

    Abstract translation: 基于硅的光学调制器结构包括一个或多个单独的局部加热元件,用于改变结构的相关部分的折射率,从而提供校正调整以解决器件性能的不期望的变化。 加热由诸如硅基电阻器,硅化物电阻器,正向偏置PN结等的热光器件提供,其中这些结构中的任何一种可以容易地与硅基光学调制器结合。 对这些结构中的任何一个施加直流电压将产生热量,然后传递到波导区域。 波导区域的局部温度的增加又将增加该区域中波导的折射率。 施加的直流电压的控制导致控制折射率

    Cyclic diversity systems and methods
    18.
    发明申请
    Cyclic diversity systems and methods 有权
    循环多样性系统和方法

    公开(公告)号:US20050259567A1

    公开(公告)日:2005-11-24

    申请号:US11121661

    申请日:2005-05-04

    CPC classification number: H04L27/2602 H04B7/0671

    Abstract: Embodiments of cyclic diversity systems and methods are disclosed. One system embodiment, among others, comprises a logic configured to cyclically advance, or perform the periodic equivalent of the same, one or more sections of an orthogonal frequency division multiplexing (OFDM) packet relative to the OFDM packet to be transmitted on a first transmit antenna, the packet having the one or more cyclically advanced sections to be transmitted on a second transmit antenna, the duration of the cyclic advance having a duration less than a guard interval.

    Abstract translation: 公开了循环分集系统和方法的实施例。 一个系统实施例,其中包括一个逻辑,其被配置为相对于要在第一传输上发送的OFDM分组循环地前进或执行正交频分复用(OFDM)分组的相同的一个或多个部分的周期性等价物 天线,具有要在第二发射天线上发送的一个或多个循环高级部分的分组,循环前进的持续时间具有小于保护间隔的持续时间。

    MOVING FLOOR SYSTEM
    20.
    发明申请
    MOVING FLOOR SYSTEM 有权
    移动地板系统

    公开(公告)号:US20150217945A1

    公开(公告)日:2015-08-06

    申请号:US14606312

    申请日:2015-01-27

    CPC classification number: B65G37/02 B65G35/06

    Abstract: A moving floor system that includes a moving work surface to move work products from an upstream end to a downstream end. The moving work surface is formed from a plurality of individual carts joined to each other. The stack of carts is moved along upper support rails located at an upper level. When each individual cart reaches the downstream end, a downstream lift conveyor moves the individual cart from the upper level to a lower level. When at the lower level, each individual cart is returned from the downstream end to the upstream end. When each individual cart reaches the upstream end, an upstream lift conveyor returns the individual carts from the lower level to the upper level. An upper drive mechanism provides the motive force to move the stack of carts along the upper level at the working speed.

    Abstract translation: 一种移动地板系统,其包括移动的工作表面以将工作产品从上游端移动到下游端。 移动的工作表面由彼此连接的多个单独的车辆形成。 推车的堆叠沿位于上层的上支撑轨移动。 当每个单独的推车到达下游端时,下游提升输送机将单独的推车从上层移动到较低的水平。 当在较低级别时,每个单独的推车从下游端返回到上游端。 当每个单独的推车到达上游端时,上游提升输送机将各个推车从下层返回到上层。 上部驱动机构提供了以工作速度沿着上层移动推车的堆叠的动力。

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