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.

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。

公开(公告)号：US07983562B1

公开(公告)日：2011-07-19

申请号：US11174354

申请日：2005-06-30

Applicant: Daniel Yap ,  Keyvan Sayyah ,  Alexander Krayner

Inventor： Daniel Yap ,  Keyvan Sayyah ,  Alexander Krayner

IPC: H04J14/00

CPC classification number: H04J14/005 ,  H04J13/0011 ,  H04J13/0077 ,  H04J13/16 ,  H04J14/02

Abstract: An apparatus and methods for encoding and decoding data are disclosed. The method for transmitting and receiving data allows for coding and decoding each bit of data with a different code. The transmitter and receiver devices allow encoding and decoding, respectively, each bit of data with different a code.

Abstract translation: 公开了一种用于对数据进行编码和解码的装置和方法。 用于发送和接收数据的方法允许用不同的代码来对每个数据位进行编码和解码。 发射机和接收机设备分别允许使用不同的码对每一位数据进行编码和解码。

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

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。

公开(公告)号：US07324256B1

公开(公告)日：2008-01-29

申请号：US11023918

申请日：2004-12-27

Applicant: Keyvan Sayyah

Inventor： Keyvan Sayyah

IPC: G02F1/03

CPC classification number: H04B10/2575 ,  G02F1/0121 ,  G02F2/00 ,  G02F2001/0157

Abstract: A photonic oscillator includes an optical transceiver that serves the dual purpose of detecting a feedback RF lightwave signal carried on a laser beam and electrically filtering the RF lightwave signal to modulate the RF lightwave signal in accordance therewith, to thereby set up steady state oscillations in the modulated RF lightwave signal and thereby generate a multi-tone oscillating lightwave.

Abstract translation: 光子振荡器包括光收发器，其用于检测携带在激光束上的反馈RF光波信号并电过滤RF光波信号以根据其调制RF光波信号的双重目的，从而在 调制RF光波信号，从而产生多音振荡光波。

公开(公告)号：US20060239696A1

公开(公告)日：2006-10-26

申请号：US11153977

申请日：2005-06-15

Applicant: Keyvan Sayyah ,  David Pepper ,  Peter Brewer ,  Anson Au

Inventor： Keyvan Sayyah ,  David Pepper ,  Peter Brewer ,  Anson Au

IPC: H04B10/00

CPC classification number: H04B10/112 ,  G01S17/74 ,  G02B5/12 ,  H01L21/6835 ,  H01L24/18 ,  H01L24/82 ,  H01L24/96 ,  H01L27/14647 ,  H01L2221/6835 ,  H01L2224/24051 ,  H01L2224/24226 ,  H01L2924/01078 ,  H01L2924/12042 ,  H01L2924/12043 ,  H01L2924/1461 ,  H01L2924/30105 ,  H01L2924/3511 ,  H04B10/2587 ,  H01L2924/00

Abstract: A conformal retro-modulator optical apparatus. The apparatus includes an array of multiple quantum well devices disposed in a thin array. A plastic support element is bonded to the thin array, the plastic support element having a thickness greater that of the thin array. The plastic support element is preferably plastic at elevated temperatures above room temperature, thereby allowing the plastic support element and the thin array of multiple well device disposed therein to conform to a predetermined shape, yet being rigid at room temperature.

Abstract translation: 一种共形逆光调制器光学装置。 该装置包括以薄阵列布置的多个量子阱装置的阵列。 塑料支撑元件结合到薄阵列，塑料支撑元件的厚度大于薄阵列的厚度。 塑料支撑元件优选在高于室温的高温下塑性，从而允许塑料支撑元件和设置在其中的多孔装置的薄阵列符合预定形状，但在室温下是刚性的。

公开(公告)号：US20050057791A1

公开(公告)日：2005-03-17

申请号：US10663368

申请日：2003-09-16

Applicant: Keyvan Sayyah

Inventor： Keyvan Sayyah

IPC: G02F1/01 ,  G02F1/03 ,  G02F1/035 ,  G02F1/07 ,  G02F1/11

CPC classification number: G02F1/0121 ,  H03B17/00 ,  H03L7/099

Abstract: In one implementation of the present invention, a method is provided for frequency tuning of a photonic oscillator. The method includes supplying an optical signal, for example laser light, which is modulated, delayed, and then converted to an electrical signal. The electrical signal is amplified, and used in modulating the optical signal. With this implementation, the frequency of the an output signal of the photonic oscillator is adjusted by adjusting a bias voltage of the amplifier. In some implementations, adjusting the frequency of the output signal further includes using a frequency lock loop circuit. In some implementations, adjusting the frequency of an output signal of the photonic oscillator further comprises adjusting at least one of an phase shifter in series with the amplifier, an optical fiber stretcher, or a bias voltage of a second amplifier. In one embodiment of the present invention, a photonic oscillator is provided including a laser and an optical modulator coupled to the laser. A lightwave delay path is coupled to the optical modulator. In some embodiments, dual lightwave delay paths are provided, such as a long loop delay path and a short loop delay path. A photodetector is coupled between the lightwave delay path and an amplifier. Typically, a bandpass filter is coupled between the amplifier and the modulating input of the optical modulator. A control circuit coupled to the amplifier is constructed so as to be capable of adjusting a bias power to the amplifier so as to shift a frequency of an output of the photonic oscillator. In some embodiments, the control circuit may include a frequency lock loop circuit.

Abstract translation: 在本发明的一个实施方案中，提供了一种用于光子振荡器的频率调谐的方法。 该方法包括提供被调制，延迟，然后转换成电信号的光信号，例如激光。 电信号被放大，用于调制光信号。 通过这种实现，通过调节放大器的偏置电压来调节光子振荡器的输出信号的频率。 在一些实现中，调整输出信号的频率还包括使用频率锁定环路电路。 在一些实现中，调整光子振荡器的输出信号的频率还包括调整与放大器串联的移相器，光纤拉伸器或第二放大器的偏置电压中的至少一个。 在本发明的一个实施例中，提供了包括激光器和耦合到激光器的光学调制器的光子振荡器。 光波延迟路径耦合到光调制器。 在一些实施例中，提供双光波延迟路径，诸如长环路延迟路径和短环路延迟路径。 光电检测器耦合在光波延迟路径和放大器之间。 通常，带通滤波器耦合在放大器和光调制器的调制输入端之间。 耦合到放大器的控制电路被构造成能够调整到放大器的偏置功率，以便移动光子振荡器的输出的频率。 在一些实施例中，控制电路可以包括频率锁定环电路。

公开(公告)号：US06589811B2

公开(公告)日：2003-07-08

申请号：US09952487

申请日：2001-09-11

Applicant: Keyvan Sayyah

Inventor： Keyvan Sayyah

IPC: H01L2144

CPC classification number: H01L21/6835 ,  H01L2221/68318 ,  H01L2221/68359 ,  H01L2221/68368 ,  H01L2221/68381 ,  H01L2224/95 ,  H05K3/20 ,  Y10S438/977

Abstract: A method for transferring layers containing semiconductor devices and/or circuits to substrates other than those on which these semiconductor devices and/or circuits have been originally fabricated. The method comprises fabricating the semiconductor devices and/or circuits, coating them with a protective layer of photoresist followed by coating with a layer of wax. A special perforated structure is then also wax coated and the waxed surface of the structure is brought into a contact with the waxed surface of photoresist. The original seed substrate is removed and the exposed surface is then coated with adhesive followed by dissolving wax through the openings in the perforated structure and attaching the layer with semiconductor devices and/or circuits to another permanent substrate. As an alternative, a disk-shaped water-soluble structure can be used instead of the perforated structure.

公开(公告)号：US5076670A

公开(公告)日：1991-12-31

申请号：US421449

申请日：1989-10-13

Applicant: Keyvan Sayyah

Inventor： Keyvan Sayyah

IPC: G02F1/133 ,  G02F1/135 ,  G02F1/136 ,  G02F1/1368

CPC classification number: G02F1/1354

Abstract: A photoconductive substrate is provided to voltage modulate a liquid crystal layer in response to input light. The substrate is partitioned into electrically isolated pixels to eliminate lateral spread of charge carriers therein, and increase the dynamic range of the liquid crystal light valve while preserving resolution. The substrate is partitioned by forming an interconnecting network of deep trenches in a surface thereof, and filling the trenches with an insulating material such as silicon dioxide. The opposite surface of the substrate is etched away to expose the silicon dioxide in the trenches, thereby providing the substrate with partitions which extend completely therethrough between the opposite surfaces.

Abstract translation: 提供光导基板以响应于输入光对液晶层进行电压调制。 将衬底分隔成电隔离的像素以消除其中的载流子的横向扩展，并且在保持分辨率的同时增加液晶光阀的动态范围。 通过在其表面中形成深沟槽的互连网络并且用诸如二氧化硅的绝缘材料填充沟槽来分隔衬底。 蚀刻基板的相对表面以暴露沟槽中的二氧化硅，从而为基板提供在相对表面之间完全贯穿其间的隔板。