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    Semiconductor-based plasmonic phase modulator and method
    11.
    发明授权
    Semiconductor-based plasmonic phase modulator and method 有权
    基于半导体的等离子体相位调制器和方法

    公开(公告)号：US08755648B1

    公开(公告)日：2014-06-17

    申请号：US12645929

    申请日：2009-12-23

    Applicant: Keyvan Sayyah

    Inventor： Keyvan Sayyah

    IPC: G02B6/26 ,  G02B6/42

    CPC classification number: G02F1/035 ,  G02B6/1226 ,  G02F1/025 ,  G02F1/2257 ,  G02F2201/302 ,  G02F2203/10 ,  G02F2203/50

    Abstract: A plasmonic phase modulator and a method of phase modulation employ modulation of surface plasmons. The plasmonic phase modulator includes a semiconductor substrate configured to provide a surface charge that forms a plasmonic channel at the substrate surface. The modulator further includes an electrode and an insulator between the electrode and the semiconductor substrate. The electrode is configured to provide an electric field that influences the surface charge. The electric field includes a bias field component and a modulation field component. The surface plasmon is supported within the plasmonic channel at an interface between the semiconductor substrate surface and the insulator. A phase of the surface plasmon in the plasmonic channel is modulated by changes in the electric field. The method includes propagating the surface plasmon in the plasmonic channel and varying the modulation field component to modulate the phase of the propagating surface plasmon.

    Abstract translation: 等离子体相位调制器和相位调制方法采用表面等离激元的调制。 等离子体相位调制器包括被配置为提供在衬底表面形成等离子体激元通道的表面电荷的半导体衬底。 调制器还包括电极和电极和半导体衬底之间的绝缘体。 电极被配置成提供影响表面电荷的电场。 电场包括偏置场分量和调制场分量。 表面等离子体激元在半导体衬底表面和绝缘体之间的界面处被支撑在等离子体激元通道内。 等离子体激元通道中的表面等离子体的相位由电场的变化来调制。 该方法包括在等离子体信号中传播表面等离子体，并改变调制场分量以调制传播表面等离子体的相位。

    Method and apparatus for waveform generation
    14.
    发明授权
    Method and apparatus for waveform generation 失效
    用于波形生成的方法和装置

    公开(公告)号：US07650080B2

    公开(公告)日：2010-01-19

    申请号：US10824197

    申请日：2004-04-13

    Applicant: Daniel Yap ,  Keyvan Sayyah

    Inventor： Daniel Yap ,  Keyvan Sayyah

    IPC: H04B10/04 ,  H04B10/00

    CPC classification number: H04B10/505 ,  G02F2/02 ,  H01S3/0057 ,  H03B21/02 ,  H03B28/00

    Abstract: A spread spectrum waveform generator has a photonic oscillator and an optical heterodyne synthesizer. The photonic oscillator is a multi-tone optical comb generator for generating a series of RF comb lines on an optical carrier. The optical heterodyne synthesizer includes first and second phase-locked lasers, where the first laser feeds the multi-tone optical comb generator and the second laser is a single tone laser whose output light provides a frequency translation reference. At least one photodetector is provided for heterodyning the frequency translation reference with the optical output of the photonic oscillator to generate a spread spectrum waveform. A receiver pre-processor may be provided to operate on the spread spectrum waveform.

    Abstract translation: 扩频波形发生器具有光子振荡器和光学外差合成器。 光子振荡器是用于在光学载体上产生一系列RF梳状线的多色调光发生器。 光学外差合成器包括第一和第二锁相激光器，其中第一激光器馈送多色光梳发生器，第二激光器是其输出光提供频率转换参考的单色激光器。 提供至少一个光电检测器用于使频率转换参考用光子振荡器的光输出进行外差以产生扩频波形。 可以提供接收机预处理器来对扩频波形进行操作。

    Injection-seeding of a multi-tone photonic oscillator
    15.
    发明授权
    Injection-seeding of a multi-tone photonic oscillator 失效
    多色子光子振荡器的注入

    公开(公告)号：US06906309B2

    公开(公告)日：2005-06-14

    申请号：US10116799

    申请日：2002-04-05

    Applicant: Keyvan Sayyah ,  Daniel Yap

    Inventor： Keyvan Sayyah ,  Daniel Yap

    IPC: G01J1/34 ,  G01J5/08 ,  H01S3/10 ,  H04B1/04

    CPC classification number: H04B1/0475

    Abstract: A multi-tone photonic oscillator comprises a laser; an optical modulator coupled to the laser; and a delay line and a photodetector coupled to the optical modulator for generating a delayed electrical signal representation of the output of the optical modulator; wherein the optical modulator being responsible for the delayed electrical signal for generating multiple tones where the frequency intervals of the tones is a function of the amount of delay imposed by the delay line.

    Abstract translation: 一个多色调光子振荡器包括一个激光器; 耦合到激光器的光学调制器; 以及耦合到所述光调制器的延迟线和光电检测器，用于产生所述光调制器的输出的延迟电信号表示; 其中所述光调制器负责延迟的电信号以产生多个音调，其中音调的频率间隔是由延迟线施加的延迟量的函数。

    MOS light valve with nematic liquid crystal operating in the surface mode
    16.
    发明授权
    MOS light valve with nematic liquid crystal operating in the surface mode 失效
    具有表面模式的液晶液晶操作的MOS阀

    公开(公告)号：US5245455A

    公开(公告)日：1993-09-14

    申请号：US580394

    申请日：1990-09-10

    Applicant: Keyvan Sayyah ,  Chiung-Sheng Wu

    Inventor： Keyvan Sayyah ,  Chiung-Sheng Wu

    IPC: G02F1/135

    CPC classification number: G02F1/135

    Abstract: A light valve (10) includes a layer of a liquid crystal (16), a MOS substrate structure (18) with a dielectric layer (24) and a semiconductor layer (26), and an optically isolating mirror (14) between the liquid crystal layer (16) and the substrate structure (18). An external AC biasing voltage is applied across the MOS substrate (18) and the liquid crystal layer (16). The liquid crystal layer (16) is sufficiently thick that it operates in the surface birefringent mode with a high contrast ratio and a short response time to changes in the write-in light beam, when a sufficiently high biasing voltage V.sub.p is applied.

    Semiconductor-based plasmonic phase modulator and method
    17.
    发明授权
    Semiconductor-based plasmonic phase modulator and method 有权
    基于半导体的等离子体相位调制器和方法

    公开(公告)号：US09014521B1

    公开(公告)日：2015-04-21

    申请号：US14173707

    申请日：2014-02-05

    Applicant: Keyvan Sayyah

    Inventor： Keyvan Sayyah

    IPC: G02B6/42 ,  G02B6/26 ,  G02F1/035

    CPC classification number: G02F1/035 ,  G02B6/1226 ,  G02F1/025 ,  G02F1/2257 ,  G02F2201/302 ,  G02F2203/10 ,  G02F2203/50

    Abstract: A plasmonic phase modulator and a method of phase modulation employ modulation of surface plasmons. The plasmonic phase modulator includes a semiconductor substrate configured to provide a surface charge that forms a plasmonic channel at the substrate surface. The modulator further includes an electrode and an insulator between the electrode and the semiconductor substrate. The electrode is configured to provide an electric field that influences the surface charge. The electric field includes a bias field component and a modulation field component. The surface plasmon is supported within the plasmonic channel at an interface between the semiconductor substrate surface and the insulator. A phase of the surface plasmon in the plasmonic channel is modulated by changes in the electric field. The method includes propagating the surface plasmon in the plasmonic channel and varying the modulation field component to modulate the phase of the propagating surface plasmon.

    Abstract translation: 等离子体相位调制器和相位调制方法采用表面等离激元的调制。 等离子体相位调制器包括被配置为提供在衬底表面形成等离子体激元通道的表面电荷的半导体衬底。 调制器还包括电极和电极和半导体衬底之间的绝缘体。 电极被配置成提供影响表面电荷的电场。 电场包括偏置场分量和调制场分量。 表面等离子体激元在半导体衬底表面和绝缘体之间的界面处被支撑在等离子体激元通道内。 等离子体激元通道中的表面等离子体的相位由电场的变化来调制。 该方法包括在等离子体信号中传播表面等离子体，并改变调制场分量以调制传播表面等离子体的相位。

    Vertical cavity multiple quantum well device with simultaneous modulation and photodetection capability
    19.
    发明授权
    Vertical cavity multiple quantum well device with simultaneous modulation and photodetection capability 有权
    具有同时调制和光电检测能力的垂直腔多量子阱器件

    公开(公告)号：US07864396B1

    公开(公告)日：2011-01-04

    申请号：US11591319

    申请日：2006-10-31

    Applicant: Keyvan Sayyah ,  Daniel Yap

    Inventor： Keyvan Sayyah ,  Daniel Yap

    IPC: G02F1/03 ,  G02F1/07 ,  G02B26/00

    CPC classification number: G02F1/21 ,  B82Y20/00 ,  G02F1/017 ,  G02F2001/213

    Abstract: A vertical cavity modulator/detector (VCMD) device and a method for modulating and detecting light are disclosed. The VCMD device contains an n-type contact layer, a transparent tuning layer, a multiple quantum well structure, a p-type contact layer, a low reflectance mirror arranged to be an input for a light that is to be modulated and a light that is to be detected, and a high reflectance mirror, wherein said n-type contact layer, said transparent tuning layer, said multiple quantum well structure and said p-type contact layer are arranged in a stack between said low reflectance mirror and said high reflectance back mirror.

    Abstract translation: 公开了一种垂直腔调制器/检测器（VCMD）装置及其调制和检测方法。 VCMD器件包括n型接触层，透明调谐层，多量子阱结构，p型接触层，被布置为待调制的光的输入的低反射镜， 以及高反射镜，其中所述n型接触层，所述透明调谐层，所述多量子阱结构和所述p型接触层以叠层布置在所述低反射率反射镜和所述高反射率之间 后视镜

    Agile spread waveform generator
    20.
    发明授权
    Agile spread waveform generator 有权
    敏捷扩展波形发生器

    公开(公告)号：US07373088B2

    公开(公告)日：2008-05-13

    申请号：US10116829

    申请日：2002-04-05

    Applicant: Daniel Yap ,  Keyvan Sayyah

    Inventor： Daniel Yap ,  Keyvan Sayyah

    IPC: H04B10/04 ,  H04B10/12 ,  H04B10/00

    CPC classification number: G02F2/002

    Abstract: An agile spread spectrum waveform generator comprises a photonic oscillator and an optical heterodyne synthesizer. The photonic oscillator comprises a multi-tone optical comb generator for generating a series of RF comb lines on an optical carrier. The optical heterodyne synthesizer includes first and second phase-locked lasers; the first laser feeding the multi-tone optical comb generator and the second laser comprising a rapidly wavelength-tunable single tone laser whose output light provides a frequency translation reference. A photodetector is provided for heterodyning the frequency translation reference with the optical output of the photonic oscillator to generate an agile spread spectrum waveform.

    Abstract translation: 敏捷扩频波形发生器包括光子振荡器和光学外差合成器。 光子振荡器包括用于在光学载体上产生一系列RF梳状线的多色调光梳发生器。 光外差合成器包括第一和第二锁相激光器; 所述第一激光器馈送所述多色调光梳发生器，所述第二激光器包括其输出光提供频率转换参考的快速波长可调单色激光器。 提供光电检测器用于使频率转换参考用光子振荡器的光输出进行外差以产生敏捷扩频波形。

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