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1. 发明授权

US09316784B2 Single- layer full-mesh, point-to-point network 有权
标题翻译：单层全网格，点对点网络
公开(公告)号：US09316784B2
公开(公告)日：2016-04-19
申请号：US13479109
申请日：2012-05-23
申请人： Ashok V. Krishnamoorthy , Xuezhe Zheng
发明人： Ashok V. Krishnamoorthy , Xuezhe Zheng
IPC分类号： G02B6/12 , G02B6/28 , G02B6/34 , G02B6/42 , G02B6/43 , G02B6/293
CPC分类号： G02B6/12009 , G02B6/29326 , G02B6/29328 , G02B6/2938 , G02B6/43 , G02B2006/12107
摘要： An MCM may include a single optical routing layer that provides point-to-point connectivity among N chips in the MCM, such as all-to-all connectivity or full-mesh point-to-point connectivity. Moreover, the optical routing layer may include: N optical waveguides optically coupled to the N chips and a cyclic de-multiplexer, optically coupled to the N optical waveguides, that routes optical signals among the N optical waveguides without optical-waveguide crossing in the optical routing layer. For example, the cyclic de-multiplexer may include: an array-waveguide-grating (AWG) wavelength router and/or an echelle-grating wavelength router.
摘要翻译： MCM可以包括在MCM中的N个芯片之间提供点对点连接的单个光路由层，诸如全对连接或全网点对点连接。此外，光路由层可以包括：光学耦合到N个芯片的N个光波导和光学耦合到N个光波导的循环去多路复用器，其在N个光波导中路由光信号，而在光学器件中没有光波导交叉路由层。例如，循环去多路复用器可以包括：阵列波导光栅（AWG）波长路由器和/或梯形光栅波长路由器。

2. 发明申请

US20150260914A1 POLARIZATION-INSENSITIVE SILICON-PHOTOTONIC OPTICAL RECEIVER 有权
标题翻译：极化无机硅光电接收器
公开(公告)号：US20150260914A1
公开(公告)日：2015-09-17
申请号：US13588261
申请日：2012-08-17
申请人： Xuezhe Zheng , Ying L. Luo , Ashok V. Krishnamoorthy , Guoliang Li
发明人： Xuezhe Zheng , Ying L. Luo , Ashok V. Krishnamoorthy , Guoliang Li
IPC分类号： G02B6/126 , G02B6/124 , G02B6/12
CPC分类号： G02B6/12023 , G02B6/12007 , G02B6/124 , G02B6/126 , G02B6/29308 , G02B6/29358
摘要： Using silicon photonic components that support a single polarization, the output of an optical receiver is independent of the polarization of an optical signal. In particular, using a polarization-diversity technique, the two orthogonal polarizations in a single-mode optical fiber are split in two and processed independently. For example, the two optical signals are provided by a polarizing splitting grating coupler. Subsequently, a wavelength channel in the two optical signals is selected using a wavelength-selective filter (for example, using a ring resonator or an echelle grating) and combined at an optical detector (such as a photo-detector) to achieve polarization-independent operation.
摘要翻译：使用支持单一极化的硅光子分量，光接收机的输出与光信号的偏振无关。特别地，使用偏振分集技术，将单模光纤中的两个正交偏振分成两部分并独立处理。例如，两个光信号由偏振分光光栅耦合器提供。随后，使用波长选择滤波器（例如，使用环形谐振器或梯形光栅）选择两个光信号中的波长信道，并在光学检测器（例如光电检测器）处组合以实现偏振无关操作。

3. 发明申请

US20140246571A1 REFLECTION-ENHANCED PHOTO-DETECTOR 审中-公开
标题翻译：反射增强型光电探测器
公开(公告)号：US20140246571A1
公开(公告)日：2014-09-04
申请号：US13588248
申请日：2012-08-17
申请人： Guoliang Li , Xuezhe Zheng , Ying L. Luo , Ashok V. Krishnamoorthy
发明人： Guoliang Li , Xuezhe Zheng , Ying L. Luo , Ashok V. Krishnamoorthy
IPC分类号： G01J1/04 , G01J1/42
CPC分类号： G01J1/0407 , G01J1/0209 , G01J1/0425 , G01J1/42 , G02B6/12004 , G02B6/124
摘要： An integrated optical device includes a photo-detector (such as germanium) optically coupled to an optical waveguide. This photo-detector is deposited on the optical waveguide, and an optical signal propagating in the optical waveguide may be evanescently coupled to the photo-detector. In order to increase the absorption length of the photo-detector, a mirror (such as a distributed Bragg reflection grating) is included in the optical waveguide near the end of the photo-detector. This mirror reflects the optical signal back toward the photo-detector, thereby increasing the absorption of the optical signal by the photo-detector. In addition, absorption may be reduced by using electrical contacts that are electrically coupled to the photo-detector at locations where the optical mode of the optical signal is largely in the underlying optical waveguide, and by using a fingered metal layer to couple to the electrical contacts.
摘要翻译：集成光学器件包括光耦合到光波导的光检测器（例如锗）。该光检测器沉积在光波导上，并且在光波导中传播的光信号可以ev逝地耦合到光检测器。为了增加光检测器的吸收长度，在光检测器端部附近的光波导中包括反射镜（例如分布式布拉格反射光栅）。该反射镜将光信号反射回光检测器，由此增加光信号由光检测器的吸收。此外，通过使用在光信号的光学模式主要位于下面的光波导中的位置处电耦合到光检测器的电接触，并且通过使用指状金属层耦合到电联系人

4. 发明授权

US08755655B2 Edge-coupled optical proximity communication 有权
标题翻译：边缘耦合光学邻近通信
公开(公告)号：US08755655B2
公开(公告)日：2014-06-17
申请号：US12564701
申请日：2009-09-22
申请人： Ashok V. Krishnamoorthy , Xuezhe Zheng
发明人： Ashok V. Krishnamoorthy , Xuezhe Zheng
IPC分类号： G02B6/36 , G02B6/30 , G02B6/42 , G02B6/43
CPC分类号： G02B6/423 , G02B6/12 , G02B6/30 , G02B6/36 , G02B6/42 , G02B6/4228 , G02B6/4231 , G02B6/43 , H04B10/803
摘要： An optical module is described. This optical module includes at least two optical devices that communicate with each other using edge-to-edge optical coupling of an optical signal between optical components in the two optical devices. Note that the edge-to-edge optical coupling may occur without mode converters at edges of either of the optical devices. Furthermore, the edge-to-edge optical coupling may be facilitated by an alignment substrate, which is mechanically coupled to the two optical devices. This alignment substrate aligns the edges of the two optical devices so that they are approximately parallel to each other, and aligns the optical components in the two optical devices.
摘要翻译：描述光学模块。该光学模块包括使用两个光学装置中的光学部件之间的光信号的边缘到边缘光耦合来彼此通信的至少两个光学装置。注意，边缘到边缘光耦合可能在任何光学器件的边缘处没有模式转换器。此外，边缘到边缘光耦合可以通过机械耦合到两个光学器件的对准衬底来促进。该对准衬底对准两个光学器件的边缘，使得它们彼此近似平行，并对准两个光学器件中的光学部件。

5. 发明授权

US08639069B1 Wavelength dependent optical switch 有权
标题翻译：波长依赖光开关
公开(公告)号：US08639069B1
公开(公告)日：2014-01-28
申请号：US10880382
申请日：2004-06-28
申请人： Roger Jonathan Helkey , John Edward Bowers , Xuezhe Zheng , David Welsh , Robert Anderson , Olivier Jerphagnon
发明人： Roger Jonathan Helkey , John Edward Bowers , Xuezhe Zheng , David Welsh , Robert Anderson , Olivier Jerphagnon
IPC分类号： G02B6/26 , G02B6/28 , G02B6/34 , G02B6/42 , H04J14/00 , H04B10/00
CPC分类号： H04Q11/0005 , G02B6/29367 , G02B6/3518 , G02B6/3532 , H04Q2011/0009 , H04Q2011/0016 , H04Q2011/003 , H04Q2011/0075
摘要： A wavelength-selective optical switch for switching arbitrary wavelengths between optical fibers in mesh networks, using interference filters for separating optical wavelengths, and two-dimensional arrays of micromirrors for switching. Broadband switch inputs and outputs are provided for adding and dropping arbitrary wavelengths at each node of the network. A two-stage multiplexer and two-stage demultiplexer are provided to simplify the free-space demultiplexer and multiplexer. Mechanisms are provided that allows full non-blocking functionality in the presence of finite yield of the micromirror arrays.
摘要翻译：用于在网状网络中的光纤之间切换任意波长的波长选择性光开关，使用用于分离光波长的干涉滤光器和用于切换的二维微镜阵列。提供宽带开关输入和输出，用于在网络的每个节点处添加和删除任意波长。提供两级多路复用器和两级解复用器来简化自由空间解复用器和多路复用器。提供了在存在微镜阵列的有限产量的情况下允许完全非阻塞功能的机制。

6. 发明授权

US08280251B2 Data transmission using direct and indirect optical paths 有权
标题翻译：使用直接和间接光路的数据传输
公开(公告)号：US08280251B2
公开(公告)日：2012-10-02
申请号：US12426844
申请日：2009-04-20
申请人： Pranay Koka , Herbert Dewitt Schwetman, Jr. , Xuezhe Zheng
发明人： Pranay Koka , Herbert Dewitt Schwetman, Jr. , Xuezhe Zheng
IPC分类号： H04J14/00
CPC分类号： H04J14/0278 , H04J14/0267
摘要： A system for transmitting data, including: a transmitter node having a setup path packet and multiple data packets; a receiver node connected to the transmitter node by a first optical channel (OC); and a first intermediate node having a first forwarding module and connected to the transmitter node by a second OC and to the receiver node by a third OC, where the transmitter node transmits the setup path packet and a first subset of the multiple data packets to the first intermediate node using the second OC, where the first forwarding module relays, in response to receiving the setup packet, the first subset to the receiver node by switching the first subset from the second OC to the third OC, and where the receiver node receives a second subset of the multiple data packets from the transmitter node using the first OC.
摘要翻译：一种用于发送数据的系统，包括：具有建立路径分组和多个数据分组的发射机节点; 通过第一光信道（OC）连接到发射机节点的接收机节点; 以及第一中间节点，其具有第一转发模块，并且由第二OC连接到所述发射机节点，并且由第三OC连接到所述接收机节点，其中所述发射机节点将所述建立路径分组和所述多个数据分组的第一子集发送到使用第二OC的第一中间节点，其中响应于接收到建立分组，第一转发模块通过将第一子集从第二OC切换到第三OC，以及接收方节点接收的第一子集，将第一子集中继到接收方节点来自使用第一OC的发射机节点的多个数据分组的第二子集。

7. 发明申请

US20120207479A1 OPTICAL DEVICE WITH REDUCED THERMAL TUNING ENERGY 有权
标题翻译：具有减少热调节能的光学装置
公开(公告)号：US20120207479A1
公开(公告)日：2012-08-16
申请号：US13156144
申请日：2011-06-08
申请人： Ashok V. Krishnamoorthy , Xuezhe Zheng , Guoliang Li , John E. Cunningham
发明人： Ashok V. Krishnamoorthy , Xuezhe Zheng , Guoliang Li , John E. Cunningham
IPC分类号： H04J14/02
CPC分类号： H04J14/02 , G02F1/0147 , G02F1/025 , G02F2203/15 , H04B10/506 , H04B10/572 , H04J14/0212
摘要： An optical device that includes multiple optical modulators having target operating wavelengths that are distributed over a band of wavelengths and actual operating wavelengths is described. For example, the target operating wavelengths of adjacent optical modulators may be separated by a wavelength increment. Moreover, because of differences between the actual operating wavelengths and the target operating wavelengths of the optical modulators, tuning elements may be used to tune the optical modulators so that the actual operating wavelengths match corresponding carrier wavelengths in a set of optical signals. Furthermore, control logic in the optical device may assign the optical modulators to the corresponding carrier wavelengths based at least on differences between the carrier wavelengths and the actual operating wavelengths, thereby reducing an average tuning energy associated with the tuning elements.
摘要翻译：描述了一种光学装置，其包括具有分布在波长带和实际工作波长上的目标工作波长的多个光调制器。例如，相邻光调制器的目标工作波长可以被波长增量分开。此外，由于实际工作波长与光调制器的目标工作波长之间的差异，调谐元件可用于调谐光调制器，使得实际工作波长匹配一组光信号中的对应载波波长。此外，光学装置中的控制逻辑可以至少基于载波波长和实际工作波长之间的差异将光调制器分配给相应的载波波长，从而减少与调谐元件相关联的平均调谐能量。

8. 发明申请

US20120207424A1 OPTICAL MODULATOR WITH THREE-DIMENSIONAL WAVEGUIDE TAPERS 有权
标题翻译：具有三维波导光栅的光学调制器
公开(公告)号：US20120207424A1
公开(公告)日：2012-08-16
申请号：US12816935
申请日：2010-06-16
申请人： Xuezhe Zheng , John E. Cunningham , Ashok V. Krishnamoorthy , Dazeng Feng , Mehdi Asghari
发明人： Xuezhe Zheng , John E. Cunningham , Ashok V. Krishnamoorthy , Dazeng Feng , Mehdi Asghari
IPC分类号： G02F1/035
CPC分类号： G02B6/1228 , G02F1/01708 , G02F2001/0157
摘要： An integrated circuit that includes an optical waveguide defined in a semiconductor layer is described. In this integrated circuit, light is coupled between the optical waveguide and an optical modulator, which is disposed on the optical waveguide, using 3-dimensional (3-D) taper structures that are proximate to the ends of the optical modulator. The cross-sectional areas of these 3-D taper structures transition, over a distance, from that of the optical waveguide (distal from the optical modulator) to that of optical modulator (proximate to the ends of the optical modulator). In this way, a spatial extent of an optical mode in the optical waveguide and a spatial extent of the optical mode in the optical modulator may be approximately matched to reduce the optical loss when the light is coupled to or from the optical modulator.
摘要翻译：描述了包括在半导体层中限定的光波导的集成电路。在该集成电路中，使用靠近光调制器的端部的3维（3-D）锥形结构将光耦合在光波导和设置在光波导上的光调制器之间。这些3-D锥形结构的横截面积在一段距离上与光波导（远离光调制器）的横截面面积转换到光调制器（近于光调制器的端部）的截面面积。以这种方式，光学波导中的光学模式的空间范围和光学调制器中的光学模式的空间范围可以近似匹配，以减少当光耦合到光学调制器时的光学损耗。

9. 发明授权

US08204385B2 Optical device with reduced thermal tuning energy 有权
标题翻译：具有减少热调谐能量的光学器件
公开(公告)号：US08204385B2
公开(公告)日：2012-06-19
申请号：US12493509
申请日：2009-06-29
申请人： Xuezhe Zheng , Ashok V. Krishnamoorthy , John E. Cunningham , Guoliang Li
发明人： Xuezhe Zheng , Ashok V. Krishnamoorthy , John E. Cunningham , Guoliang Li
IPC分类号： H04B10/12 , H04J14/02
CPC分类号： G02F1/025 , G02F1/0147 , G02F2203/05 , G02F2203/15 , H04B10/506 , H04B10/572 , H04J14/02
摘要： An optical device that includes multiple optical modulators having actual operating wavelengths at a given temperature is described. Because of differences between the actual operating wavelengths and target operating wavelengths of the optical modulators, heating elements may be used to thermally tune the optical modulators so that the actual operating wavelengths match corresponding carrier wavelengths in a set of optical signals. Furthermore, control logic in the optical device may assign the optical modulators to the corresponding carrier wavelengths based at least on differences between the carrier wavelengths and the actual operating wavelengths, thereby reducing an average thermal tuning energy associated with the heating elements.
摘要翻译：描述了包括在给定温度下具有实际工作波长的多个光调制器的光学装置。由于光调制器的实际工作波长和目标工作波长之间的差异，可以使用加热元件来热调谐光学调制器，使得实际工作波长匹配一组光信号中的相应载波波长。此外，光学装置中的控制逻辑可以至少基于载波波长和实际工作波长之间的差异将光调制器分配给相应的载波波长，由此降低与加热元件相关联的平均热调谐能量。

10. 发明授权

US08014636B2 Electrical contacts on top of waveguide structures for efficient optical modulation in silicon photonic devices 有权
标题翻译：波导结构顶部的电触点用于硅光子器件中的有效光调制
公开(公告)号：US08014636B2
公开(公告)日：2011-09-06
申请号：US12389608
申请日：2009-02-20
申请人： Ivan Shubin , Guoliang Li , John E. Cunningham , Ashok Krishnamoorthy , Xuezhe Zheng
发明人： Ivan Shubin , Guoliang Li , John E. Cunningham , Ashok Krishnamoorthy , Xuezhe Zheng
IPC分类号： G02F1/035 , H01L29/06 , H04B10/04
CPC分类号： G02F1/025 , B82Y20/00 , G02F1/01708 , G02F2001/0157 , G02F2201/12 , Y10S977/742
摘要： A phase modulation waveguide structure includes one of a semiconductor and a semiconductor-on-insulator substrate, a doped semiconductor layer formed over the one of a semiconductor and a semiconductor-on-insulator substrate, the doped semiconductor portion including a waveguide rib protruding from a surface thereof not in contact with the one of a semiconductor and a semiconductor-on-insulator substrate, and an electrical contact on top of the waveguide rib. The electrical contact is formed of a material with an optical refractive index close to that of a surrounding oxide layer that surrounds the waveguide rib and the electrical contact and lower than the optical refractive index of the doped semiconductor layer. During propagation of an optical mode within the waveguide structure, the electrical contact isolates the optical mode between the doped semiconductor layer and a metal electrode contact on top of the electrical contact.
摘要翻译：相位调制波导结构包括半导体和绝缘体上半导体衬底之一，在半导体和绝缘体上半导体衬底之上形成的掺杂半导体层，掺杂半导体部分包括从其表面不与半导体和绝缘体上半导体衬底之一接触，并且在波导肋的顶部上的电接触。电接触由光学折射率接近包围波导肋和电接触并且低于掺杂半导体层的光折射率的周围氧化物层的材料形成。在波导结构内的光学模式的传播期间，电接触将掺杂半导体层和电接触顶部上的金属电极接触之间的光学模式隔离开。

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