公开(公告)号：US07085499B2

公开(公告)日：2006-08-01

申请号：US10116801

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: G02F1/00 ,  G02B6/2861 ,  G02F2203/56 ,  H04B10/2575 ,  H04B10/505 ,  H04B10/5051 ,  H04B10/50577

Abstract: A waveform synthesizer comprising for synthesizing RF lightwave waveforms in the optical domain. These waveforms are constructed by generating their constituent Fourier frequency components or tones and then adjusting the amplitudes of those frequency components or tones. The apparatus includes: a RF-lightwave frequency-comb generator; and a multi-tone, frequency selective amplitude modulator coupled to the RF-lightwave frequency-comb generator for generating a continuous-wave comb comprising a set of RF tones amplitude modulated onto a lightwave carrier.

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。

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。

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：US08554085B1

公开(公告)日：2013-10-08

申请号：US12628783

申请日：2009-12-01

Applicant: Daniel Yap ,  Keyvan Sayyah

Inventor： Daniel Yap ,  Keyvan Sayyah

IPC: H04B10/04 ,  H04B10/50

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。

公开(公告)号：US08615028B1

公开(公告)日：2013-12-24

申请号：US12902657

申请日：2010-10-12

Applicant: Keyvan Sayyah ,  James H. Scaffner ,  Carson R. White

Inventor： Keyvan Sayyah ,  James H. Scaffner ,  Carson R. White

IPC: H01S5/00

CPC classification number: H01S5/4006 ,  H01S5/0085 ,  H01S5/026 ,  H01S5/06246 ,  H01S5/18302 ,  H01S5/423 ,  H01S2301/20

Abstract: A vertically integrated optical phased array has an array of a plurality of vertical cavity surface emitting lasers disposed in an aperiodic arrangement thereof, the plurality of vertical cavity surface emitting lasers having light emitting ports disposed parallel to one another. An array of a plurality of vertical cavity phase modulators disposed in the same aperiodic arrangement as the array of the plurality of vertical cavity surface emitting lasers, with individual modulators of said array of a plurality of vertical cavity phase modulators each being disposed in optical alignment with an injection port of a corresponding one of said plurality of vertical cavity surface emitting lasers. An array of a plurality of laser ports, fed by a master laser, are disposed in the same aperiodic arrangement as the array of the plurality of vertical cavity surface emitting lasers, the master laser providing, in use, injection beamlets, each injection beamlet, in use, injection locking a corresponding one of said plurality of vertical cavity surface emitting lasers via a corresponding one of said plurality of vertical cavity phase modulators.

Abstract translation: 垂直集成的光学相控阵列具有以非周期性排列设置的多个垂直腔表面发射激光器的阵列，所述多个垂直腔表面发射激光器具有彼此平行设置的发光端口。 多个垂直腔相位调制器的阵列以与多个垂直腔表面发射激光器的阵列相同的非周期性布置设置，多个垂直腔相位调制器的阵列的各个调制器各自设置成与 所述多个垂直腔表面发射激光器中的相应一个的注入端口。 由主激光器馈送的多个激光端口的阵列以与多个垂直腔表面发射激光器的阵列相同的非周期性布置设置，主激光器在使用中提供注射子束，每个注射子束， 在使用中，通过所述多个垂直腔相位调制器中的对应的一个，注入锁定所述多个垂直腔表面发射激光器中相应的一个。

公开(公告)号：US07603037B2

公开(公告)日：2009-10-13

申请号：US10773945

申请日：2004-02-06

Applicant: Keyvan Sayyah

Inventor： Keyvan Sayyah

IPC: H04J14/02

CPC classification number: H04B10/25752

Abstract: Disclosed is a method and apparatus for optically modulating and transmitting source data. An optical comb comprising optical tones having a frequency spacing equal to Δf is generated by an optical comb generator. Selected ones of the optical tones in the optical comb are modulated according to the source data to produce a comb of modulated optical tones. At least one optical tone in the optical comb is frequency shifted by a frequency less than Δf to produce a frequency shifted unmodulated optical reference tone. The optical comb, the frequency shifted unmodulated optical reference tone and the comb of modulated tones are multiplexed onto at least one optical path.

Abstract translation: 公开了用于光学调制和传输源数据的方法和装置。 包括具有等于Deltaf的频率间隔的光学音调的光梳由光梳发生器产生。 根据源数据对光梳中的所选光调制进行调制以产生调制光调的梳状。 光梳中的至少一个光学色调以小于Deltaf的频率偏移以产生频移未调制的光学参考色调。 光梳，频移未调制的光参考色调和调制色调梳被复用到至少一个光路上。

公开(公告)号：US07027675B2

公开(公告)日：2006-04-11

申请号：US10663368

申请日：2003-09-16

Applicant: Keyvan Sayyah

Inventor： Keyvan Sayyah

IPC: G02B6/12

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。