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1. 发明授权

US08559769B2 All-optical phase shifter in silicon 有权
标题翻译：全光移相器在硅中
公开(公告)号：US08559769B2
公开(公告)日：2013-10-15
申请号：US13014864
申请日：2011-01-27
申请人： Mahmoud Rasras
发明人： Mahmoud Rasras
IPC分类号： G02F1/035
CPC分类号： G02F1/0126 , G02F1/025 , G02F1/2257 , G02F2203/50
摘要： A device includes a semiconductor waveguide and a control signal waveguide formed along a planar surface of a substrate. The control signal waveguide includes a segment located along and proximate a segment of the semiconductor waveguide. The control signal waveguide is configured to photo-excite charge carriers in said semiconductor waveguide.
摘要翻译：一种器件包括半导体波导和沿着衬底的平面形成的控制信号波导。控制信号波导包括沿着半导体波导的段并且靠近半导体波导的段定位的段。控制信号波导被配置为对所述半导体波导中的载流子进行光激发。

2. 发明授权

US08032023B2 Reconfigurable DWDM wavelength switch based on complementary bandpass filters 有权
标题翻译：基于互补带通滤波器的可重构DWDM波长开关
公开(公告)号：US08032023B2
公开(公告)日：2011-10-04
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 , H04J14/02
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。

3. 发明授权

US07672553B2 High speed semiconductor optical modulator 有权
标题翻译：高速半导体光调制器
公开(公告)号：US07672553B2
公开(公告)日：2010-03-02
申请号：US11681070
申请日：2007-03-01
申请人： Douglas M. Gill , Christopher D. W. Jones , Sanjay Patel , Mahmoud Rasras , Nils G. Weimann
发明人： Douglas M. Gill , Christopher D. W. Jones , Sanjay Patel , Mahmoud Rasras , Nils G. Weimann
IPC分类号： G02B6/26
CPC分类号： G02F1/025 , G02F2001/0152
摘要： The present invention provides an optical waveguide modulator. In one embodiment, the optical waveguide modulator includes a semiconductor planar optical waveguide core and doped semiconductor connecting paths located adjacent opposite sides of the core and capable of applying a voltage across the core. The optical waveguide core and connecting paths form a structure having back-to-back PN semiconductor junctions. In another embodiment, the optical waveguide modulator includes a semiconductor optical waveguide core including a ridge portion wherein the ridge portion has at least one PN semiconductor junction located therein. The optical waveguide modulator also includes one or more doped semiconductor connecting paths located laterally adjacent the ridge portion and capable of applying a voltage to the ridge portion.
摘要翻译：本发明提供一种光波导调制器。在一个实施例中，光波导调制器包括半导体平面光波导芯和与芯相邻的相邻侧面的掺杂半导体连接路径，并能跨越芯施加电压。光波导芯和连接路径形成具有背对背PN半导体结的结构。在另一个实施例中，光波导调制器包括半导体光波导芯，其包括脊部，其中脊部具有位于其中的至少一个PN半导体结。光波导调制器还包括一个或多个掺杂的半导体连接路径，其位于横向邻近脊部分并且能够向脊部分施加电压。

4. 发明申请

US20090252456A1 OPTICAL MODE-CONVERTER STRUCTURE 有权
标题翻译：光模式转换器结构
公开(公告)号：US20090252456A1
公开(公告)日：2009-10-08
申请号：US12099200
申请日：2008-04-08
申请人： Mahmoud Rasras
发明人： Mahmoud Rasras
IPC分类号： G02B6/26
CPC分类号： G02B6/305
摘要： An apparatus comprising an optical-mode-converter structure. The optical-mode-converter structure includes a tapered optical core on a planar substrate, an optical cladding layer covering the tapered optical core and a mode-expanding layer. The mode-expanding layer covers the tapered optical core and is located in-between the tapered optical core and the optical cladding layer. The mode-expanding layer has a refractive index that is in-between a refractive index of the tapered optical core and a refractive index of the optical cladding layer.
摘要翻译：一种包括光模转换器结构的装置。光模式转换器结构包括在平面基板上的锥形光学芯，覆盖锥形光学核的光学包层和模式扩展层。模式扩展层覆盖锥形光纤芯并且位于锥形光纤芯和光学包层之间。模式扩展层具有在锥形光纤芯的折射率和光学包层的折射率之间的折射率。

5. 发明申请

US20090161113A1 INTEGRATED OPTOELECTRONIC SYSTEM FOR AUTOMATIC CALIBRATION OF AN OPTICAL DEVICE 审中-公开
标题翻译：用于自动校准光学器件的集成光电系统
公开(公告)号：US20090161113A1
公开(公告)日：2009-06-25
申请号：US11960017
申请日：2007-12-19
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： G01B9/02
CPC分类号： G02B6/12007 , G02B6/29353 , G02B6/29395 , G02F1/0147 , G02F2203/15
摘要： An apparatus and method for automated calibration of an optical device are disclosed. The apparatus is an integrated optoelectronic system that includes input and output optical waveguides, a tunable optical device, an optical source, an optical detector, and an electronic controller formed on a single substrate. The tunable optical device has one or more tuning elements for varying one or more characteristics of the device. The optical source is coupled to the input waveguide for providing a calibration signal to the device. The optical detector is coupled to the output optical waveguide for measuring an intensity of the optical signal output by the device in response to receiving the calibration signal. The electronic controller is configured to perform a calibration of the device by varying a parameter of each tuning element and to receive intensity measurements of the optical signal output by the device as a function of the varied parameter.
摘要翻译：公开了一种用于光学装置的自动校准的装置和方法。该装置是集成光电系统，其包括输入和输出光波导，可调谐光学装置，光源，光学检测器和形成在单个基板上的电子控制器。可调光学器件具有用于改变器件的一个或多个特性的一个或多个调谐元件。光源耦合到输入波导，以向设备提供校准信号。光学检测器耦合到输出光波导，用于响应于接收到校准信号来测量器件输出的光信号的强度。电子控制器被配置为通过改变每个调谐元件的参数来执行设备的校准，并且根据变化的参数来接收设备输出的光信号的强度测量值。

6. 发明申请

US20090154940A1 BALANCED OPTICAL SIGNAL PROCESSOR 有权
标题翻译：平衡光信号处理器
公开(公告)号：US20090154940A1
公开(公告)日：2009-06-18
申请号：US11957725
申请日：2007-12-17
申请人： Young-Kai Chen , Andreas Bertold Leven , Mahmoud Rasras , Kun-Yii Tu
发明人： Young-Kai Chen , Andreas Bertold Leven , Mahmoud Rasras , Kun-Yii Tu
IPC分类号： H04B10/06
CPC分类号： H04B10/00 , H04B2210/006
摘要： An apparatus and method for reducing electrical signal intermodulation by processing a balanced electrical signal in the optical domain in a manner adapted to reduce noise and second order intermodulation, and converting the processed optical signal back to an electrical domain signal with either a single or balanced (differential) outputs.
摘要翻译：一种用于通过以适于减少噪声和二阶互调的方式处理光域中的平衡电信号并且将经处理的光信号转换回具有单个或平衡的电域信号的方式来减少电信号互调的装置和方法差分）输出。

7. 发明授权

US08699834B2 Bandwidth adjustable bandpass filter 有权
标题翻译：带宽可调带通滤波器
公开(公告)号：US08699834B2
公开(公告)日：2014-04-15
申请号：US13023173
申请日：2011-02-08
申请人： Mahmoud Rasras
发明人： Mahmoud Rasras
IPC分类号： G02B6/26 , G02F1/01
CPC分类号： H04J14/02 , G02B6/12007 , G02B6/29353 , G02B6/29389 , G02B6/29395 , G02F1/225
摘要： An apparatus comprising a Mache-Zehnder interferometer. The Mache-Zehnder interferometer comprises: a 1×2 optical splitter having an optical input, a 2×2 optical coupler having first and second optical outputs, two optical waveguide arms end-connecting each optical output of the 1×2 optical splitter to a corresponding optical input of the 2×2 optical coupler, a variable optical phase shifter on one of the waveguide arms and a plurality of optical resonators, each optical resonator being controllably coupled along one of the optical waveguide arms. An optical path length between the optical input of the 1×2 optical coupler and the first optical output of the 2×2 optical coupler is substantially the same via the first optical waveguide arm and the second optical waveguide arm when the optical resonators are decoupled from the optical waveguide arms.
摘要翻译：包括Mache-Zehnder干涉仪的装置。 Mache-Zehnder干涉仪包括：具有光输入的1×2光分路器，具有第一和第二光输出的2×2光耦合器，两个光波导臂将1×2光分路器的每个光输出端连接到 2×2光耦合器的相应光输入，在一个波导臂上的可变光移相器和多个光谐振器，每个光谐振器沿着光波导臂中的一个可控地耦合。光耦合器的光输入端与2×2光耦合器的第一光输出端之间的光路长度通过第一光波导臂和第二光波导臂大致相同，当光谐振器从光波导臂。

8. 发明申请

US20110103415A1 OPTICAL DEVICE FOR WAVELENGTH LOCKING 有权
标题翻译：用于波长锁定的光学装置
公开(公告)号：US20110103415A1
公开(公告)日：2011-05-05
申请号：US12611187
申请日：2009-11-03
申请人： Mahmoud Rasras
发明人： Mahmoud Rasras
IPC分类号： H01S3/13 , G02B6/42 , G02B6/26 , B29D11/00
CPC分类号： G02B6/26 , B29D11/00663 , G02B6/4201 , G02B6/4215 , G02B6/4245 , G02B6/4286 , H01S3/1305
摘要： An optical device comprising a 1×2 optical coupler on a planar substrate and a waveguide on the planar substrate, the waveguide having a first arm and a second arm coupled to the 1×2 optical coupler. The device also comprises an optical resonator on the planar substrate, wherein the optical resonator is optically coupled to the first arm and the optical resonator is substantially athermalized.
摘要翻译：一种光学装置，包括平面基板上的1×2光耦合器和平面基板上的波导，所述波导具有耦合到1×2光耦合器的第一臂和第二臂。该器件还包括在平面衬底上的光学谐振器，其中光学谐振器被光学耦合到第一臂，并且光学谐振器被基本上无热化。

9. 发明申请

US20110064419A1 OPTICAL DEVICE AND METHOD FOR OPTICAL FREQUENCY MODULATION TO OPTICAL AMPLITUDE MODULATION CONVERSION 有权
标题翻译：用于光学调制的光学装置和光学调制变换的方法
公开(公告)号：US20110064419A1
公开(公告)日：2011-03-17
申请号：US12615439
申请日：2009-11-10
申请人： Young Kai Chen , Mahmoud Rasras
发明人： Young Kai Chen , Mahmoud Rasras
IPC分类号： H04B10/12 , G01B9/02 , H04B10/06
CPC分类号： H04B10/516 , H04B2210/517
摘要： An optical device comprising an optical device comprising a Mach-Zehnder interferometer having a first 2×2 optical coupler, a second 2×2 optical coupler, a first optical arm, and a second optical arm. The first and second arms connecting corresponding pairs of optical ports of the first and second 2×2 optical couplers. The second optical arm has a longer optical path than the first arm. The device also comprises one or more optical resonators optically coupled to the first optical arm and an optical splitter. The optical splitter is coupled to deliver a portion of an input optical signal to one port of the first 2×2 optical coupler and to deliver a remaining portion of the input optical signal to one port of the second optical coupler.
摘要翻译：一种光学装置，包括包括具有第一2×2光耦合器的马赫 - 策德尔干涉仪，第二2×2光耦合器，第一光学臂和第二光学臂的光学装置。第一和第二臂连接第一和第二2×2光耦合器的对应的一对光端口。第二光臂具有比第一臂更长的光路。该装置还包括光耦合到第一光臂和光分路器的一个或多个光谐振器。光分路器被耦合以将输入光信号的一部分传送到第一2×2光耦合器的一个端口，并将输入光信号的剩余部分传送到第二光耦合器的一个端口。

10. 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。

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