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    Photonic Technique For Generating Arbitrary Waveforms
    51.
    发明申请
    Photonic Technique For Generating Arbitrary Waveforms 有权
    用于产生任意波形的光子技术

    公开(公告)号：US20110149370A1

    公开(公告)日：2011-06-23

    申请号：US12776570

    申请日：2010-05-10

    申请人： Kun-Yii Tu ,  Ting-Chen Hu ,  Young-Kai Chen

    发明人： Kun-Yii Tu ,  Ting-Chen Hu ,  Young-Kai Chen

    IPC分类号： G02F1/01

    CPC分类号： H04B10/00 ,  G02F1/011 ,  G02F1/0123 ,  G02F2201/122 ,  G02F2203/50 ,  H04B2210/006

    摘要： In a radio frequency (RF)-photonic arbitrary waveform generator (AWG), an optical carrier signal is phase-modulated using an arbitrary waveform optical phase generator (AWPOG), which may include, e.g., sequential optical phase modulators. The phase-modulated optical signal is combined with a version of the optical carrier signal to yield an optical waveform, whose amplitude varies with a phase shift introduced by the AWPOG to the optical carrier signal. By manipulating electrical inputs to the AWPOG which control the phase shift, the optical waveform can be arbitrary shaped. The optical waveform may then be converted to an electrical waveform having a radio frequency.

    摘要翻译： 在射频（RF） - 光子任意波形发生器（AWG）中，使用任意波形光学相位发生器（AWPOG）对光载波信号进行相位调制，其可以包括例如顺序光相位调制器。 相位调制的光信号与光载波信号的形式组合以产生光波形，其波幅随AWPOG向光载波信号引入的相移而变化。 通过操纵控制相移的AWPOG的电输入，光波形可以是任意形状。 然后可以将光学波形转换成具有射频的电波形。

    Coherent phase-shift-keying
    52.
    发明授权
    Coherent phase-shift-keying 有权
    相干相移键控

    公开(公告)号：US07747177B2

    公开(公告)日：2010-06-29

    申请号：US11204607

    申请日：2005-08-15

    申请人： Young-Kai Chen ,  Ut-Va Koc ,  Andreas Bertold Leven

    发明人： Young-Kai Chen ,  Ut-Va Koc ,  Andreas Bertold Leven

    IPC分类号： H04B10/00

    CPC分类号： H04L27/223 ,  H04B10/60 ,  H04B10/6164 ,  H04B10/6165 ,  H04B10/63 ,  H04L27/227 ,  H04L2027/003

    摘要： A receiver for coherent detection of a PSK modulated optical carrier includes an optical detector, digital-to-analog converters, and a digital module. The optical detector is configured to mix the modulated optical carrier with two phase components of a reference optical carrier and to produce analog output signals representative of optical signals produced by said mixing. The digital-to-analog converters are connected to receive the analog output signals and to produce digital signals from the received analog output signals. The digital module is connected to receive the digital signals and to perform one of compensating the received digital signals for a conjugate phase misalignment between the mixed components, extracting phase of the received digital signals, and estimating a frequency offset between the two carriers from the received digital signals.

    摘要翻译： 用于PSK调制光载波的相干检测的接收机包括光检测器，数 - 模转换器和数字模块。 光学检测器被配置为将调制光载波与参考光载波的两相分量进行混合，并产生代表由所述混频产生的光信号的模拟输出信号。 数模转换器被连接以接收模拟输出信号并从接收到的模拟输出信号产生数字信号。 数字模块被连接以接收数字信号，并执行补偿接收到的数字信号之一用于混合分量之间的共轭相位失准，提取接收到的数字信号的相位，并且从接收到的两个载波之间估计频率偏移 数字信号。

    Optical heterodyne receiver and method of extracting data from a phase-modulated input optical signal
    54.
    发明授权
    Optical heterodyne receiver and method of extracting data from a phase-modulated input optical signal 有权
    光外差接收机和从相位调制输入光信号中提取数据的方法

    公开(公告)号：US07650084B2

    公开(公告)日：2010-01-19

    申请号：US11236246

    申请日：2005-09-27

    申请人： Young-Kai Chen ,  Ut-Va Koc ,  Andreas Leven

    发明人： Young-Kai Chen ,  Ut-Va Koc ,  Andreas Leven

    IPC分类号： H04B10/06

    CPC分类号： H04B10/64 ,  H04B10/61 ,  H04B10/613 ,  H04B10/615

    摘要： An optical heterodyne receiver and a method of extracting data from a phase-modulated input optical signal. In one embodiment, the optical heterodyne receiver includes: (1) a photonic quadrature demodulator having first and second optical inputs and first and second electrical outputs and configured to generate at the first and second electrical outputs an in-phase signal and a quadrature-phase signal, respectively, in response to receiving a modulated optical signal at the first optical input and a reference optical oscillator signal at the second optical input, (2) a passive radio frequency single sideband demodulator coupled to the photonic quadrature demodulator and configured to extract at least one sideband of the in-phase signal or the quadrature-phase signal and (3) at least one analog-to-digital converter coupled to the passive radio frequency single sideband demodulator and configured to receive and sample the at least one sideband.

    摘要翻译： 光学外差接收器和从相位调制输入光信号中提取数据的方法。 在一个实施例中，光学外差接收器包括：（1）光子正交解调器，其具有第一和第二光学输入以及第一和第二电输出并被配置为在第一和第二电输出处产生同相信号和正交相位 信号，分别响应于在第一光输入处接收调制的光信号和在第二光输入处的参考光信号，（2）耦合到光子正交解调器的被动射频单边带解调器，并且被配置为在 同相信号或正交相位信号的至少一个边带;以及（3）耦合到无源射频单边带解调器并被配置为接收和采样至少一个边带的至少一个模拟 - 数字转换器。

    Self-Calibrating Integrated Photonic Circuit and Method of Control Thereof
    56.
    发明申请
    Self-Calibrating Integrated Photonic Circuit and Method of Control Thereof 失效
    自校准集成光子电路及其控制方法

    公开(公告)号：US20090238557A1

    公开(公告)日：2009-09-24

    申请号：US12050225

    申请日：2008-03-18

    申请人： Young-Kai Chen ,  Mahmoud Rasras ,  Kun-Yii Tu

    发明人： Young-Kai Chen ,  Mahmoud Rasras ,  Kun-Yii Tu

    IPC分类号： H04B10/08 ,  G02B6/12

    CPC分类号： H01S5/0687

    摘要： A self-calibrating integrated photonic circuit and a method of controlling the same. In one embodiment, the circuit includes: (1) a substrate, (2) a laser located on the substrate and configured to produce source light at an output frequency, (3) a laser alignment sensor located on the substrate and including: (3a) a reference optical resonator configured to receive the source light, have a null proximate a predetermined center frequency and provide output light as a function of a relationship between the output frequency and the center frequency and (3b) a photodetector configured to provide an electrical signal of a magnitude that is based on the output light and (4) a calibration controller located on the substrate, coupled to the photodetector and configured to adjust the output frequency based on the magnitude.

    摘要翻译： 一种自校准集成光子电路及其控制方法。 在一个实施例中，电路包括：（1）衬底，（2）位于衬底上并被配置为以输出频率产生光源的激光器，（3）位于衬底上的激光对准传感器，包括：（3a ）配置为接收源光的参考光学谐振器，具有接近预定中心频率的零点，并且作为输出频率和中心频率之间的关系的函数提供输出光，以及（3b）被配置为提供电信号 基于输出光的幅度和（4）位于衬底上的校准控制器，耦合到光电检测器并且被配置为基于大小来调整输出频率。

    Flat profile structures for bipolar transistors
    57.
    发明授权
    Flat profile structures for bipolar transistors 有权
    双极晶体管的平面结构

    公开(公告)号：US07541624B2

    公开(公告)日：2009-06-02

    申请号：US10624038

    申请日：2003-07-21

    申请人： Young-Kai Chen ,  Rose Fasano Kopf ,  Wei-Jer Sung ,  Nils Guenter Weimann

    发明人： Young-Kai Chen ,  Rose Fasano Kopf ,  Wei-Jer Sung ,  Nils Guenter Weimann

    IPC分类号： H01L21/00

    CPC分类号： H01L29/66318 ,  H01L29/0821 ,  H01L29/41708 ,  H01L29/42304 ,  H01L29/7371

    摘要： A method for fabricating a bipolar transistor includes forming collector, base, and emitter semiconductor layers on a substrate such that the layers form a vertical sequence with respect to an adjacent surface of the substrate. The method includes etching away a portion of a top one of the semiconductor layers to expose a portion of the base semiconductor layer and then, growing semiconductor on the exposed portion of the base layer. The top one of the semiconductor layers is the layer of the sequence that is located farthest from the substrate. The growing causes grown semiconductor to laterally surround a vertical portion of the top one of the semiconductor layers.

    摘要翻译： 制造双极晶体管的方法包括在基板上形成集电极，基极和发射极半导体层，使得这些层相对于基板的相邻表面形成垂直的顺序。 该方法包括蚀刻远离半导体层顶部的一部分以露出基底半导体层的一部分，然后在基底层的暴露部分上生长半导体。 半导体层中的顶部之一是距离衬底最远的序列层。 生长的原因使半导体横向围绕半导体层的顶部的垂直部分。

    Adaptive optical equalization for chromatic and/or polarization mode dispersion compensation and joint opto-electronic equalizer architecture
    58.
    发明授权
    Adaptive optical equalization for chromatic and/or polarization mode dispersion compensation and joint opto-electronic equalizer architecture 有权
    用于彩色和/或偏振模色散补偿和联合光电均衡器架构的自适应光学均衡

    公开(公告)号：US07496298B2

    公开(公告)日：2009-02-24

    申请号：US10982137

    申请日：2004-11-05

    申请人： Young-Kai Chen ,  Ut-Va Koc ,  Andreas Leven

    发明人： Young-Kai Chen ,  Ut-Va Koc ,  Andreas Leven

    IPC分类号： H04B10/06 ,  H04B10/18 ,  H04B10/14

    CPC分类号： H04B10/2513 ,  H04B10/2569

    摘要： An apparatus and method for use in an adaptive optical equalizer including, in one embodiment an optical equalizer having an input and output coupled to receive an incoming optical signal and configured to generate an output optical signal by phase modulation and/or amplitude modulation of the receive optical signal in response to electronic control signals. A photodiode is configured to receive the output optical signal and generate an representative current signal. A control signal generator is configured to generate the electronic control signals in accordance with predetermined criteria and in response to the representative current signal from the photodiode. An interferometer is connected to receive the incoming and output optical signal from the optical equalizer, the differential amplifier is configured to receive electronic versions of outputs from the interferometer for generating a difference signal and supplying the difference signal to the control signal generator.

    摘要翻译： 一种在自适应光学均衡器中使用的装置和方法，包括在一个实施例中，光学均衡器具有耦合以接收输入光信号并被配置为通过接收机的相位调制和/或幅度调制产生输出光信号的输入和输出 光信号响应于电子控制信号。 光电二极管被配置为接收输出光信号并产生代表性的电流信号。 控制信号发生器被配置为根据预定标准并且响应于来自光电二极管的代表性电流信号产生电子控制信号。 连接干涉仪以接收来自光学均衡器的输入和输出光信号，差分放大器被配置为从干涉仪接收电子版本的输出，用于产生差分信号并将差分信号提供给控制信号发生器。

    Optical Data Communication System Having Reduced Pulse Distortion and Method of Operating the Same
    59.
    发明申请
    Optical Data Communication System Having Reduced Pulse Distortion and Method of Operating the Same 审中-公开
    具有减少脉冲失真的光学数据通信系统及其操作方法

    公开(公告)号：US20090003838A1

    公开(公告)日：2009-01-01

    申请号：US11769339

    申请日：2007-06-27

    申请人： Young-Kai Chen ,  Andreas B. Leven

    发明人： Young-Kai Chen ,  Andreas B. Leven

    IPC分类号： H04B10/00

    CPC分类号： H04B10/508

    摘要： An optical data transmission system and a method of communicating data. In one embodiment, the transmission system is part of an optical data communication system that includes: (1) an optical pulse transmitter configured to generate amplitude-modulated optical pulses at a fixed repetition rate, (2) an optical filter coupled to an output of the optical pulse transmitter, having a transmission notch at the fixed repetition rate and configured to filter the optical pulses and (3) an optical detector coupled to an output of the optical filter and configured to produce an output electrical signal representative of intensities of the optical pulses provided by the optical filter.

    摘要翻译： 光数据传输系统和数据通信方法。 在一个实施例中，传输系统是光学数据通信系统的一部分，其包括：（1）光脉冲发射器，被配置为以固定的重复频率产生幅度调制的光脉冲，（2）耦合到 所述光脉冲发射器具有固定重复频率的传输陷波并被配置为对所述光脉冲进行滤波;以及（3）耦合到所述滤光器的输出的光学检测器，其被配置为产生表示所述光学脉冲的强度的输出电信号 由滤光器提供的脉冲。