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1. 发明申请

US20100119226A1 RECONFIGURABLE DWDM WAVELENGTH SWITCH BASED ON COMPLEMENTARY BANDPASS FILTERS 有权
标题翻译：基于补充滤波器的可重构DWDM波长开关
公开(公告)号：US20100119226A1
公开(公告)日：2010-05-13
申请号：US12266905
申请日：2008-11-07
申请人： Mahmoud Rasras , Kun-Yii Tu
发明人： Mahmoud Rasras , Kun-Yii Tu
IPC分类号： H04J14/00
CPC分类号： G02B6/12007 , G02B6/29343 , G02B6/29353 , G02B6/29395 , G02B2006/12145
摘要： Programmable wavelength line switches and routers based on a complementary wavelength switch (CWS) building block are described for switching optical signals of different wavelengths between signal lines, with each carrying multiple wavelengths. The CWS building block is based on a complementary bandpass filter structure. The reconfigurable wavelength routers described allow any of a plurality of wavelengths on any line to be switched to any output line by programming the filters accordingly. The various implementations described are useful for wavelength division multiplexing (WDM), dense WDM, and ultra dense WDM optical communications systems, as well as for on-chip interconnects and optical signal processing.
摘要翻译：描述了基于互补波长开关（CWS）构建块的可编程波长线路交换机和路由器，用于切换信号线之间不同波长的光信号，每个波长线路交换机和路由器承载多个波长。 CWS构建块基于互补带通滤波器结构。所描述的可重新配置的波长路由器允许通过相应地对滤波器进行编程来将任何线路上的多个波长中的任一个切换到任何输出线路。所描述的各种实现对于波分复用（WDM），密集WDM和超密度WDM光通信系统以及用于片上互连和光信号处理是有用的。

2. 发明授权

US07688872B2 Self-Calibrating integrated photonic circuit and method of control thereof 失效
标题翻译：自校准集成光子电路及其控制方法
公开(公告)号：US07688872B2
公开(公告)日：2010-03-30
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： H01S3/13
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。

3. 发明申请

US20070217737A1 Method and apparatus for optically filtering a communication signal 有权
标题翻译：用于对通信信号进行光学滤波的方法和装置
公开(公告)号：US20070217737A1
公开(公告)日：2007-09-20
申请号：US11376491
申请日：2006-03-15
申请人： Douglas Gill , Mahmoud Rasras , Kun-Yii Tu
发明人： Douglas Gill , Mahmoud Rasras , Kun-Yii Tu
IPC分类号： G02B6/26
CPC分类号： G02B6/2746 , G02B6/2935 , G02B6/29395 , G02B6/4206 , G02B6/4246 , H04B10/2507 , H04B10/50 , H04B10/675
摘要： There is provided a method and apparatus for optically filtering a communication signal. More specifically, in one embodiment, there is provided an apparatus comprising an optical filter having first and second input ports and first and second output ports, the optical filter being configured to transmit light in a target frequency range to the first output port in response to receiving light at the first input port and being configured to transmit light in the target frequency range to the second input port in response to receiving light at the second output port, and first and second photodiodes, the first diode being located to be illuminated by light from the first output port and the second photodiode being located to be illuminated by light from the second input port.
摘要翻译：提供了一种用于对通信信号进行光学滤波的方法和装置。更具体地，在一个实施例中，提供了一种装置，包括具有第一和第二输入端口以及第一和第二输出端口的滤光器，所述滤光器被配置为响应于第一输出端口将目标频率范围的光透射到第一输出端口在第一输入端口处接收光并响应于在第二输出端口接收光而将目标频率范围内的光传输到第二输入端口，以及第一和第二光电二极管，第一二极管被定位成被光照射从第一输出端口和第二光电二极管位于被来自第二输入端口的光照射。

4. 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。

5. 发明授权

US08238017B2 Photonic match filter 有权
标题翻译：光子匹配滤波器
公开(公告)号：US08238017B2
公开(公告)日：2012-08-07
申请号：US12641601
申请日：2009-12-18
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： G02F1/011 , G02F1/0123 , G02F2201/122 , G02F2203/50 , H04B10/60
摘要： An optical path is configured to propagate an input optical signal. A plurality of electrodes are configured to produce a plurality of discrete phase shifts on the optical signal. An output optical signal is phase-shifted with respect to the input optical signal by a sum of the plurality of discrete phase shifts.
摘要翻译：光路被配置为传播输入光信号。多个电极被配置为在光信号上产生多个离散相移。输出光信号相对于输入光信号通过多个离散相移的和进行相移。

6. 发明申请

US20090214223A1 CMOS-COMPATIBLE TUNABLE MICROWAVE PHOTONIC BAND-STOP FILTER 有权
标题翻译： CMOS兼容微波微波贴片过滤器
公开(公告)号：US20090214223A1
公开(公告)日：2009-08-27
申请号：US12035677
申请日：2008-02-22
申请人： Young-Kai Chen , Sanjay Patel , Mahmoud Rasras , Kun-Yii Tu
发明人： Young-Kai Chen , Sanjay Patel , Mahmoud Rasras , Kun-Yii Tu
IPC分类号： H04B10/04
CPC分类号： H04B10/00 , H04B2210/006
摘要： According to one embodiment, a microwave photonic band-stop (MPBS) filter uses an electrical input signal to drive an optical Mach-Zehnder modulator. A modulated optical carrier produced by the modulator is applied to an optical filter having at least two tunable spectral attenuation bands that are located substantially symmetrically on either side of the carrier frequency. The resulting filtered optical signal is applied to an optical-to-electrical (O/E) converter to produce an electrical output signal.
摘要翻译：根据一个实施例，微波光子带阻（MPBS）滤波器使用电输入信号来驱动光学马赫 - 曾德尔调制器。由调制器产生的调制光载波被应用于具有至少两个可调频谱衰减频带的滤光器，该衰减频带基本对称地位于载波频率的任一侧上。所得到的经滤波的光信号被施加到光电（O / E）转换器以产生电输出信号。

7. 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。

8. 发明授权

US07471904B2 Method and apparatus for electronic equalization in optical communication systems 有权
标题翻译：光通信系统中电子均衡的方法和装置
公开(公告)号：US07471904B2
公开(公告)日：2008-12-30
申请号：US10627098
申请日：2003-07-25
申请人： Noriaki Kaneda , Ut-Va Koc , Kun-Yii Tu
发明人： Noriaki Kaneda , Ut-Va Koc , Kun-Yii Tu
IPC分类号： H04B10/06
CPC分类号： H04B10/6971 , H04B10/695 , H04L25/03057 , H04L25/062 , H04L2025/03388 , H04L2025/03617
摘要： A method and apparatus are provided for performing electronic equalization in optical communication systems. Coefficient values in equalizers, such as feed forward equalizers or decision feedback equalizers, are updated using higher-order algorithms in the Least-Mean-2Nth-Order family. An optical receiver includes a photo-detector for converting a received optical signal to an electrical signal; and an equalizer for removing intersymbol interference from the electrical signal, wherein coefficients of the equalizer are updated based upon a least-mean 2Nth-order (LMN) algorithm (N is greater than one). Feed forward equalizer and decision feedback equalizer implementations are disclosed. The non-symmetric nature of optical noise is addressed by varying A slicer threshold based on an incoming signal distribution to reduce bit errors.
摘要翻译：提供了一种在光通信系统中执行电子均衡的方法和装置。均衡器中的系数值，例如前馈均衡器或判决反馈均衡器，使用最低均值2N阶系列中的高阶算法进行更新。光接收机包括用于将接收到的光信号转换成电信号的光检测器; 以及用于从电信号去除符号间干扰的均衡器，其中基于最小二乘（LMN）算法（N大于1）来更新均衡器的系数。公开了前馈均衡器和判决反馈均衡器实现。通过基于输入信号分布改变A限幅器阈值来解决光噪声的非对称性质，以减少位错误。

9. 发明申请

US20050019042A1 Method and apparatus for electronic equalization in optical communication systems 有权
标题翻译：光通信系统中电子均衡的方法和装置
公开(公告)号：US20050019042A1
公开(公告)日：2005-01-27
申请号：US10627098
申请日：2003-07-25
申请人： Noriaki Kaneda , Ut-Va Koc , Kun-Yii Tu
发明人： Noriaki Kaneda , Ut-Va Koc , Kun-Yii Tu
IPC分类号： H04B10/158 , H04L25/03 , H04L25/06 , H04B10/06
CPC分类号： H04B10/6971 , H04B10/695 , H04L25/03057 , H04L25/062 , H04L2025/03388 , H04L2025/03617
摘要： A method and apparatus are provided for performing electronic equalization in optical communication systems. Coefficient values in equalizers, such as feed forward equalizers or decision feedback equalizers, are updated using higher-order algorithms in the Least-Mean-2Nth-Order family. An optical receiver includes a photo-detector for converting a received optical signal to an electrical signal; and an equalizer for removing intersymbol interference from the electrical signal, wherein coefficients of the equalizer are updated based upon a least-mean 2Nth-order (LMN) algorithm (N is greater than one). Feed forward equalizer and decision feedback equalizer implementations are disclosed. The non-symmetric nature of optical noise is addressed by varying A slicer threshold based on an incoming signal distribution to reduce bit errors.
摘要翻译：提供了一种在光通信系统中执行电子均衡的方法和装置。均衡器中的系数值，例如前馈均衡器或判决反馈均衡器，使用最低均值2N阶系列中的高阶算法进行更新。光接收机包括用于将接收到的光信号转换成电信号的光检测器; 以及用于从电信号去除符号间干扰的均衡器，其中基于最小二乘（LMN）算法（N大于1）来更新均衡器的系数。公开了前馈均衡器和判决反馈均衡器实现。通过基于输入信号分布改变A限幅器阈值来解决光噪声的非对称性质，以减少位错误。

10. 发明授权

US09164239B2 Method and apparatus for optically filtering a communication signal 有权
标题翻译：用于对通信信号进行光学滤波的方法和装置
公开(公告)号：US09164239B2
公开(公告)日：2015-10-20
申请号：US11376491
申请日：2006-03-15
申请人： Douglas M. Gill , Mahmoud Rasras , Kun-Yii Tu
发明人： Douglas M. Gill , Mahmoud Rasras , Kun-Yii Tu
IPC分类号： G02B6/27 , G02B6/293 , G02B6/42 , H04B10/2507 , H04B10/50 , H04B10/67
CPC分类号： G02B6/2746 , G02B6/2935 , G02B6/29395 , G02B6/4206 , G02B6/4246 , H04B10/2507 , H04B10/50 , H04B10/675
摘要： There is provided a method and apparatus for optically filtering a communication signal. More specifically, in one embodiment, there is provided an apparatus comprising an optical filter having first and second input ports and first and second output ports, the optical filter being configured to transmit light in a target frequency range to the first output port in response to receiving light at the first input port and being configured to transmit light in the target frequency range to the second input port in response to receiving light at the second output port, and first and second photodiodes, the first diode being located to be illuminated by light from the first output port and the second photodiode being located to be illuminated by light from the second input port.
摘要翻译：提供了一种用于对通信信号进行光学滤波的方法和装置。更具体地，在一个实施例中，提供了一种装置，包括具有第一和第二输入端口以及第一和第二输出端口的滤光器，所述滤光器被配置为响应于第一输出端口将目标频率范围的光透射到第一输出端口在第一输入端口处接收光并响应于在第二输出端口接收光而将目标频率范围内的光传输到第二输入端口，以及第一和第二光电二极管，第一二极管被定位成被光照射从第一输出端口和第二光电二极管位于被来自第二输入端口的光照射。

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