OPTICAL ROUTERS AND LOGICAL GATES BASED ON THE PROPAGATION OF BRAGG SOLITONS IN NON-UNIFORM ONE-DIMENSIONAL PHOTONIC CRYSTALS
    2.
    发明申请
    OPTICAL ROUTERS AND LOGICAL GATES BASED ON THE PROPAGATION OF BRAGG SOLITONS IN NON-UNIFORM ONE-DIMENSIONAL PHOTONIC CRYSTALS 审中-公开
    基于非均匀一维光子晶体中传感器的光学路由器和逻辑门

    公开(公告)号:US20090263079A1

    公开(公告)日:2009-10-22

    申请号:US12350269

    申请日:2009-01-08

    Abstract: An optical router for all-optical control over the propagation direction of optical pulses, comprising: (i) a non-uniform one-dimensional photonic crystal receiving a plurality of input optical pulses, comprising: at least one first region used to obtain Bragg solitons; at least one second region in which non-linear interaction between two sufficiently adjacent solitons is obtained; and at least one third region used to de-couple resulting after the interaction pulses outside the one-dimensional photonic crystal's grating; and (ii) a plurality of sufficiently temporally separated optical pulses launched towards said one-dimensional photonic crystal from either of its sides, such that the number of pulses de-coupled from at least one of the sides of the grating is different in case when interaction between the pulses occurs inside the grating, from the case when no interaction between pulse occurs inside the grating.

    Abstract translation: 一种用于对光脉冲的传播方向进行全光控制的光路由器,包括:(i)接收多个输入光脉冲的不均匀的一维光子晶体,包括:用于获得布拉格孤子的至少一个第一区域 ; 至少一个第二区域,其中获得两个足够相邻的孤子之间的非线性相互作用; 以及用于在一维光子晶体光栅之外的相互作用脉冲之后产生的耦合的至少一个第三区域; 以及(ii)从其任一侧向所述一维光子晶体发射的多个足够时间上分离的光脉冲,使得从光栅的至少一个侧面去耦合的脉冲数不同, 在光栅内发生脉冲之间的相互作用的情况下,在光栅内发生脉冲之间的相互作用。

    Method for fixing optical information in crystals and for quasi-phase
matching in frequency mixing
    3.
    发明授权
    Method for fixing optical information in crystals and for quasi-phase matching in frequency mixing 失效
    用于固定晶体中的光学信息和频率混合中的准相位匹配的方法

    公开(公告)号:US5691829A

    公开(公告)日:1997-11-25

    申请号:US543883

    申请日:1995-10-17

    CPC classification number: G03H1/0248 G02F1/3558

    Abstract: A method and apparatus for fixing images, holograms and domain gratings in crystals by application of an electric field on a crystal and simultaneous illumination of it with a light pattern. The fixing procedure is based on a screening effect. The modulation of the domains may be perpendicular to the c-axis. Another application of the method is in frequency mixing such as second harmonic generation and parametric processes, by overcoming the problem of phase matching using the domain gratings. Thus, it is possible to obtain controllable broadband mixing and tailored quasi-phase matching for several wavelengths or for prespecified wavelength tuning ranges and frequency widths.

    Abstract translation: 一种用于通过在晶体上施加电场并以光图案同时照射图像,全息图和畴状光栅来固定晶体的方法和装置。 固定程序是基于筛选效果。 畴的调制可以垂直于c轴。 该方法的另一个应用是通过克服使用域光栅的相位匹配问题来进行频率混合,例如二次谐波生成和参数化处理。 因此,可以获得可控宽带混合和针对若干波长的定制准相位匹配或用于预定波长调谐范围和频率宽度。

    Optical Under-Sampling And Reconstruction Of Sparse Multiband Signals
    4.
    发明申请
    Optical Under-Sampling And Reconstruction Of Sparse Multiband Signals 审中-公开
    稀疏多波段信号的光学欠采样和重构

    公开(公告)号:US20110123192A1

    公开(公告)日:2011-05-26

    申请号:US12864739

    申请日:2009-01-28

    CPC classification number: H04J14/08 H03M1/121 H04J14/02

    Abstract: A scheme for reconstructing multiband signals that occupy a small part of a given broad frequency range under the constraint of a small number of sampling channels. The multirate sampling scheme (MRS) entails gathering samples at several different rates whose sum is significantly lower than the Nyquist sampling rate. The number of channels does not depend on any characteristics of a signal. The reconstruction method may or may not rely on the synchronization between different sampling channels. The scheme can be implemented easily with optical sampling systems. The optical pulses required for the under-sampling are generated by a combination of an electrical comb generator and an electro-absorption optical modulator

    Abstract translation: 一种用于在少量采样通道的限制下重建占用给定宽频率范围的一小部分的多频带信号的方案。 多速率采样方案(MRS)需要以几个不同的速率收集样本,其总和明显低于奈奎斯特采样率。 信道数量不取决于信号的任何特性。 重建方法可以或可以不依赖于不同采样通道之间的同步。 该方案可以轻松实现光采样系统。 欠采样所需的光脉冲由电梳发生器和电吸收光调制器的组合产生

    Advertising attachment for in-store scanning plate
    5.
    发明授权
    Advertising attachment for in-store scanning plate 失效
    广告附件为店内扫描板

    公开(公告)号:US6023871A

    公开(公告)日:2000-02-15

    申请号:US871617

    申请日:1997-06-09

    Applicant: Moshe Horowitz

    Inventor: Moshe Horowitz

    CPC classification number: G09F3/20 G09F7/08

    Abstract: An advertising attachment to be used with a scanning plate of a hanger bracket where the advertising attachment has at least a base plate on which advertisements or product information can be printed. The advertising attachment has an opening through which information displayed on the face of the scanning plate can be read or scanned. An additional plate may be used to provide a more suitable surface for printing or to reduce costs. The advertising attachment has a structure for mounting, for instance, mounting hooks, parallel gripping ridges, or an insertion slot in the back of the base plate. Such an advertising attachment provides a highly simplified way of displaying advertisements within a compact display space.

    Abstract translation: 一种与吊架支架的扫描板一起使用的广告附件,其中广告附件至少具有能够打印广告或产品信息的基板。 广告附件具有可以读取或扫描扫描板的表面上显示的信息的开口。 可以使用另外的板来提供用于印刷的更合适的表面或降低成本。 广告附件具有用于安装例如安装钩,平行夹持脊或基板后部的插槽的结构。 这样的广告附件提供了在紧凑的显示空间内显示广告的高度简化的方式。

Patent Agency Ranking