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1. 发明申请

US20130101300A1 POWER ADJUSTMENT OF IN-PHASE AND QUADRATURE COMPONENTS AT A COHERENT OPTICAL RECEIVER 有权
标题翻译：在相邻光接收机上进行相间和相位分量的功率调整
公开(公告)号：US20130101300A1
公开(公告)日：2013-04-25
申请号：US13637481
申请日：2011-03-24
申请人： Stefan Weisser , Silvio Cucchi , Carlo Costantini , Noriaki Kaneda , Andreas Leven
发明人： Stefan Weisser , Silvio Cucchi , Carlo Costantini , Noriaki Kaneda , Andreas Leven
IPC分类号： H04B10/06
CPC分类号： H04B10/616 , H03G3/3084 , H04B10/60 , H04B10/613 , H04B10/6931 , H04L27/2096 , H04L27/3809 , H04L27/3818
摘要： It is disclosed an optical coherent receiver for an optical communication network. The optical coherent receiver is configured to receive a modulated optical signal and to process it for generating an in-phase component and a quadrature component. The optical coherent receiver comprises a power adjuster in turn comprising a multiplying unit and a retroactively connected digital circuit. The multiplying unit is configured to multiply the in-phase and quadrature components by in-phase and quadrature gains, respectively, thereby providing power-adjusted in-phase and quadrature components. The digital circuit is configured to compute: a common gain indicative of a sum of the powers of the power-adjusted in-phase and quadrature components; a differential gain indicative of a difference between the powers of the power-adjusted in-phase and quadrature components; and the in-phase and quadrature gains as a product and a ratio, respectively, between the common gain and the differential gain.
摘要翻译：公开了一种用于光通信网络的光学相干接收机。光学相干接收器被配置为接收经调制的光信号并且处理它以产生同相分量和正交分量。光学相干接收机包括功率调节器，其依次包括乘法单元和追溯连接的数字电路。乘法单元被配置为分别将同相和正交分量乘以同相和正交增益，从而提供功率调整的同相和正交分量。数字电路被配置为计算：表示功率调整的同相和正交分量的功率之和的公共增益; 指示功率调整的同相和正交分量的功率之间的差的差分增益; 以及同相和正交增益作为公共增益和差分增益之间的乘积和比率。

2. 发明授权

US07929864B2 Optical beamforming transmitter 有权
标题翻译：光束成形发射机
公开(公告)号：US07929864B2
公开(公告)日：2011-04-19
申请号：US11366145
申请日：2006-03-02
申请人： Young-Kai Chen , Andreas Leven
发明人： Young-Kai Chen , Andreas Leven
IPC分类号： H04B10/00 , H04B10/04
CPC分类号： H01Q3/2676
摘要： The present invention provides an optical beamforming RF transmitter. In one embodiment, the optical beamforming RF transmitter includes an optical WDM splitter having an input and a plurality of outputs. The optical beamforming RF transmitter also includes an array of antennas, where each antenna has an optical input configured to drive the corresponding antenna, and an array of optical modulators, such that each modulator has an output connected to a corresponding one of the antennas and an input connected to one of the outputs of the optical WDM splitter. The optical beamforming RF transmitter further includes a mode-locked laser having an output optically coupled to the input of the optical WDM splitter.
摘要翻译：本发明提供一种光束成形射频发射机。在一个实施例中，光束成形RF发射器包括具有输入和多个输出的光学WDM分离器。光束成形RF发射器还包括天线阵列，其中每个天线具有配置成驱动相应天线的光学输入和光学调制器阵列，使得每个调制器具有连接到相应的一个天线的输出和输入连接到光学WDM分离器的一个输出。光束成形RF发射器还包括具有光学耦合到光学WDM分离器的输入的输出的锁模激光器。

3. 发明授权

US07061414B2 Optical digital-to-analog converter 有权
标题翻译：光学数模转换器
公开(公告)号：US07061414B2
公开(公告)日：2006-06-13
申请号：US10771089
申请日：2004-02-03
申请人： Young-Kai Chen , Andreas Leven , Kun-Yii Tu
发明人： Young-Kai Chen , Andreas Leven , Kun-Yii Tu
IPC分类号： H03M1/66
CPC分类号： G02F7/00 , G02F2201/18
摘要： An optical digital-to-analog conversion is realized by employing either a continuous wave or pulsed laser optical signal. The laser optical signal is split into a plurality of mutually coherent optical beams, which are phase shift modulated by bits of a digital data sequence to be converted to an analog signal. The phase shift modulated optical beams are recombined to realize the desired digital-to-analog converted optical signal.
摘要翻译：通过采用连续波或脉冲激光光信号实现光数字到模拟转换。激光光信号被分割成多个相互相干的光束，它们被数字数据序列的位进行相移调制以转换成模拟信号。相移调制光束被重组以实现期望的数模转换光信号。

4. 发明申请

US20050156195A1 Bipolar transistors with vertical structures 审中-公开
公开(公告)号：US20050156195A1
公开(公告)日：2005-07-21
申请号：US11079166
申请日：2005-03-14
申请人： Young-Kai Chen , Lay-Lay Chua , Vincent Houtsma , Rose Kopf , Andreas Leven , Chun-Ting Liu , Wei-Jer Sung , Yang Yang
发明人： Young-Kai Chen , Lay-Lay Chua , Vincent Houtsma , Rose Kopf , Andreas Leven , Chun-Ting Liu , Wei-Jer Sung , Yang Yang
IPC分类号： H01L21/331 , H01L29/737 , H01L29/739 , H01L31/0328 , H01L31/0336
CPC分类号： H01L29/66318 , H01L29/7371
摘要： A method for fabricating a bipolar transistor includes forming a vertical sequence of semiconductor layers, forming an implant mask on the last formed semiconductor layer, and implanting dopant ions into a portion of one or more of the semiconductor layers. The sequence of semiconductor layers includes a collector layer, a base layer that is in contact with the collector layer, and an emitter layer that is in contact with the base layer. The implanting uses a process in which the implant mask stops dopant ions from penetrating into a portion of the sequence of layers.

5. 发明授权

US06798557B1 Direct optical N-state phase shift keying 有权
标题翻译：直接光学N态相移键控
公开(公告)号：US06798557B1
公开(公告)日：2004-09-28
申请号：US10443328
申请日：2003-05-22
申请人： Andreas Leven
发明人： Andreas Leven
IPC分类号： G02F101
CPC分类号： H04B10/5055 , H04B10/505 , H04B10/5051 , H04B10/5053 , H04B10/5561 , H04L27/2096
摘要： A unique optical encoder is employed that utilizes an optical phase modulator, in which an arbitrary phase shift can be realized. The phase modulator is driven by an electrical signal, where the voltage amplitude is proportional to a desired arbitrary phase shift. However, any amplitude noise or poor rise and fall times of the driving voltage translates directly into phase errors. These problems are eliminated by employing a digital phase switch. One encoder, in accordance with the invention, employs an optical phase modulator that can switch the optical phase in a binary manner, wherein the two phase states of the modulator can be chosen to differ by any desired arbitrary angle depending on the splitting ratio of the optical signal to be modulated.
摘要翻译：采用独特的光学编码器，其利用光相位调制器，其中可以实现任意的相移。相位调制器由电信号驱动，其中电压幅度与期望的任意相移成比例。然而，驱动电压的任何振幅噪声或差的上升和下降时间直接转换为相位误差。通过采用数字相位开关来消除这些问题。根据本发明的一个编码器采用可以以二进制方式切换光学相位的光学相位调制器，其中调制器的两个相位状态可以被选择为根据任意的任意角度而不同，这取决于要调制的光信号。

6. 发明授权

US08224134B2 Optoelectronic receiver 有权
标题翻译：光电接收机
公开(公告)号：US08224134B2
公开(公告)日：2012-07-17
申请号：US12418442
申请日：2009-04-03
申请人： Yves Baeyens , Young-Kai Chen , Vincent Houtsma , Andreas Leven , Nils Guenter Weimann
发明人： Yves Baeyens , Young-Kai Chen , Vincent Houtsma , Andreas Leven , Nils Guenter Weimann
IPC分类号： G02B6/12 , G02B6/28 , H04B10/06
CPC分类号： G02B6/4295 , G02B6/12 , G02B6/1228 , H01L31/1105 , H04B10/69
摘要： An optoelectronic receiver and associated method of operation.
摘要翻译：一种光电接收机及其相关操作方法。

7. 发明授权

US08116638B2 Radio frequency (RF) signal receiver using optical processing and associated methods 有权
标题翻译：射频（RF）信号接收机采用光学处理及相关方法
公开(公告)号：US08116638B2
公开(公告)日：2012-02-14
申请号：US11755478
申请日：2007-05-30
申请人： Bruce Fitzgerald , Richard DeSalvo , Young Kai Chen , Andreas Leven , Peter J. Delfyett
发明人： Bruce Fitzgerald , Richard DeSalvo , Young Kai Chen , Andreas Leven , Peter J. Delfyett
IPC分类号： H04B10/00 , H04B10/04 , H04B10/08 , G02B5/18
CPC分类号： H04B10/1125 , H01Q3/2676 , H04B10/25752
摘要： A signal receiver, such as an RF-matched filter receiver, includes an optical source (e.g. a mode-locked laser) providing an optical signal, and a first optical modulator to modulate the optical signal with a received RF signal and provide a modulated optical signal. A second optical modulator modulates the modulated optical signal with a reference signal and provides a twice modulated optical signal. The modulators may be Mach-Zehnder Modulators (MZM) and/or Indium Phosphide (InP) modulators. An optical detector receives the twice modulated optical signal and provides a detected signal, and a processing unit receives the detected signal and extracts or measures cross-correlation between the received RF signal and the reference signal.
摘要翻译：诸如RF匹配滤波器接收器的信号接收器包括提供光信号的光源（例如锁模激光器）和用接收的RF信号调制光信号的第一光调制器，并提供调制光信号。第二光调制器用参考信号调制调制的光信号，并提供两次调制的光信号。调制器可以是马赫 - 曾德调制器（MZM）和/或磷化铟（InP）调制器。光检测器接收两次调制的光信号并提供检测信号，处理单元接收检测信号并提取或测量接收的RF信号与参考信号之间的互相关。

8. 发明授权

US07755755B2 Matched optical waveforms for detection and identification of biological pathogens 有权
标题翻译：匹配的光学波形用于检测和鉴定生物病原体
公开(公告)号：US07755755B2
公开(公告)日：2010-07-13
申请号：US11705926
申请日：2007-02-14
申请人： John Richard DeSalvo , Geoffrey Lynn Burdge , Bruce W. FitzGerald , Young-Kai Chen , Andreas Leven , Peter Delfyett
发明人： John Richard DeSalvo , Geoffrey Lynn Burdge , Bruce W. FitzGerald , Young-Kai Chen , Andreas Leven , Peter Delfyett
IPC分类号： G01J3/28
CPC分类号： G01N21/3581 , G01N21/3504 , G01N21/49 , G01N21/94 , G01N2021/1795 , G02F2203/13
摘要： A method is provided for identifying a contaminant in a gaseous space. The method includes: generating a broadband optical waveform; shaping the optical waveform to match an expected waveform for a known contaminant; and transmitting the shaped optical waveform towards an unknown contaminant. Upon receiving a reflected optical waveform from the unknown contaminant, determining whether the unknown contaminant correlates to the known contaminant based on the reflected waveform.
摘要翻译：提供了一种用于识别气体空间中的污染物的方法。该方法包括：产生宽带光波形; 使光学波形成形以匹配已知污染物的期望波形; 并将成形的光波形传送到未知的污染物。在从未知污染物接收到反射光波形时，基于反射波形确定未知污染物是否与已知污染物相关。

9. 发明授权

US07548668B2 Programmable optical array 有权
标题翻译：可编程光学阵列
公开(公告)号：US07548668B2
公开(公告)日：2009-06-16
申请号：US11944183
申请日：2007-11-21
申请人： Young-Kai Chen , Andreas Leven , Mahmoud Rasras , Kun-Yii Tu
发明人： Young-Kai Chen , Andreas Leven , Mahmoud Rasras , Kun-Yii Tu
IPC分类号： G02B6/12 , G02B6/35
CPC分类号： G02B6/12007 , G02B6/3546 , G02F1/025 , G02F1/3133 , G02F2203/15
摘要： An apparatus having a topology that allows building complicated optical programmable arrays useful for manipulating the phase and/or amplitude of an optical signal. Sophisticated filtering and other optical signal processing functionality can be programmed into the array after a chip containing the array has been fabricated. This programming capability is analogous to that of electronic field programmable gate arrays (FPGA's). Apparatus described herein will provide a powerful tool for processing optical signals or very broadband electrical signals.
摘要翻译：具有拓扑结构的装置，其允许构建用于操纵光信号的相位和/或幅度的复杂的光学可编程阵列。在制造了包含阵列的芯片之后，可以将复杂的滤波和其他光信号处理功能编程到阵列中。这种编程能力类似于电子现场可编程门阵列（FPGA）的编程能力。本文描述的装置将提供用于处理光信号或非常宽带电信号的强大工具。

10. 发明授权

US07155130B2 NRZ-to-RZ conversion for communication systems 有权
标题翻译：通信系统的NRZ到RZ转换
公开(公告)号：US07155130B2
公开(公告)日：2006-12-26
申请号：US10085433
申请日：2002-02-28
申请人： Yves L. Baeyens , Young-Kai Chen , Wei-Chiao W. Fang , Andreas Leven , Eugene F. Rice
发明人： Yves L. Baeyens , Young-Kai Chen , Wei-Chiao W. Fang , Andreas Leven , Eugene F. Rice
IPC分类号： H04B10/04 , H04B10/12
CPC分类号： H04B10/508 , H04B10/505
摘要： A driver, e.g., for use with electro-optic (E/O) modulators. The driver is configured to generate a driving signal based on an electronic NRZ input data signal and an input clock signal. The driver converts the NRZ input data signal to an RZ format and produces an amplified RZ signal that can be applied to an E/O modulator. The amplification gain of the driver is adjustable to enable interfacing with different modulators. In one embodiment of the invention, the driving signal is generated based on a comparison between the NRZ input data signal and an offset clock signal generated from the input clock signal. The width of pulses in the driving signal, e.g., corresponding to logical “ones,” may be tuned by, e.g., changing the DC offset of the clock signal. The driver may be implemented as an ASIC configured to operate at the data rate of, e.g., 10 GBit/s.
摘要翻译：驱动器，例如用于电光（E / O）调制器。驱动器被配置为基于电子NRZ输入数据信号和输入时钟信号产生驱动信号。驱动器将NRZ输入数据信号转换为RZ格式，并产生可应用于E / O调制器的放大RZ信号。驱动器的放大增益可调，以实现与不同调制器的连接。在本发明的一个实施例中，基于NRZ输入数据信号与从输入时钟信号产生的偏移时钟信号之间的比较产生驱动信号。可以通过例如改变时钟信号的DC偏移来调整驱动信号中的脉冲宽度，例如对应于逻辑“1”。驱动器可以被实现为被配置为以例如10GBit / s的数据速率操作的ASIC。

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