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公开(公告)号：US20130016970A1
公开(公告)日：2013-01-17
申请号：US13180355
申请日：2011-07-11
申请人： Pranay Koka , Michael O. McCracken , Herbert D. Schwetman, JR. , Xuezhe Zheng , Ashok V. Krishnamoorthy
发明人： Pranay Koka , Michael O. McCracken , Herbert D. Schwetman, JR. , Xuezhe Zheng , Ashok V. Krishnamoorthy
CPC分类号： G02B6/4246 , H04J14/021 , H04J14/0213 , H04J14/0273 , H04Q11/0005 , H04Q2011/0009 , H04Q2011/0016 , H04Q2011/0052
摘要： In a multi-chip module (MCM), integrated circuits are coupled by optical waveguides. These integrated circuits receive optical signals from a set of light sources which have fixed carrier wavelengths. Moreover, a given integrated circuit includes: a transmitter that modulates at least one of the optical signals when transmitting information to at least another of the integrated circuits; and a receiver that receives at least one modulated optical signal having one of the carrier wavelengths when receiving information from at least the other of the integrated circuits. Furthermore, the MCM includes switchable drop filters optically coupled to the optical waveguides and associated integrated circuits, wherein the switchable drop filters pass adjustable bands of wavelengths to receivers in the integrated circuits. Additionally, control logic in the MCM provides a control signal to the switchable drop filters to specify the adjustable bands of wavelengths.
摘要翻译： 在多芯片模块（MCM）中，集成电路通过光波导耦合。 这些集成电路从具有固定载波波长的一组光源接收光信号。 此外，给定的集成电路包括：发送器，当向至少另一个集成电路发送信息时，调制至少一个光信号; 以及接收器，当从至少另一个集成电路接收信息时，接收具有载波波长之一的至少一个调制光信号。 此外，MCM包括光耦合到光波导和相关联的集成电路的可切换液滴滤光器，其中可切换液滴滤光片将可调节的波段传送到集成电路中的接收器。 此外，MCM中的控制逻辑为可切换的降滤波器提供控制信号，以指定波长的可调波段。
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公开(公告)号：US08340479B2
公开(公告)日：2012-12-25
申请号：US12687633
申请日：2010-01-14
IPC分类号： G02B6/12
CPC分类号： G02B6/1228 , G02F1/2257
摘要： An integrated circuit that includes an optical waveguide to convey an optical signal via an optical mode in an on-chip optical waveguide is described. In this integrated circuit, a cross-sectional area of the optical waveguide may be tapered in proximity to an electro-optic modulator in the integrated circuit, such as a germanium electro-optic modulator or a quantum-well (QW) electro-optic modulator. In particular, the cross-sectional area may be tapered from a first diameter distal from the electro-optic modulator to a second diameter proximate to the electro-optic modulator. This so-called ‘inverse taper’ may increase the spatial extent or size of the optical mode, thereby allowing the optical signal to be optically coupled to or from the electro-optic modulator with low optical loss.
摘要翻译： 描述了一种集成电路，其包括用于在片上光波导中经由光学模式传送光信号的光波导。 在该集成电路中，光波导的横截面积可以在集成电路中的电光调制器附近逐渐变细，例如锗电光调制器或量子阱（QW）电光调制器 。 特别地，横截面积可以从远离电光调制器的第一直径逐渐变细到靠近电光调制器的第二直径。 这种所谓的反向锥度可以增加光学模式的空间范围或尺寸，从而允许光学信号光电耦合到或具有低光损耗的电光调制器。
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93.发明授权公开(公告)号：US08320761B2
公开(公告)日：2012-11-27
申请号：US11962426
申请日：2007-12-21
CPC分类号： G02B6/2804 , G02B6/29343 , G02B6/29352 , G02B6/43 , G02B2006/1215 , H04J14/0212 , H04Q2213/1301 , H04Q2213/13322
摘要： Embodiments of a bidirectional 3-way optical splitter are described. This bidirectional 3-way optical splitter includes an optical splitter having: a first external node, a second external node, a third external node, and a fourth external node. In one mode of operation, the optical splitter may be configured to receive an external input optical signal on the first external node and to provide external output optical signals on the other external nodes. Moreover, in another mode of operation, the optical splitter may be configured to receive the external input optical signal on the third external node and to provide the external output optical signals on the other external nodes.
摘要翻译： 描述双向3路光分路器的实施例。 这种双向3路光分路器包括具有：第一外部节点，第二外部节点，第三外部节点和第四外部节点的光分路器。 在一种操作模式中，光分路器可以被配置为在第一外部节点上接收外部输入光信号，并且在其它外部节点上提供外部输出光信号。 此外，在另一种操作模式中，光分路器可以被配置为在第三外部节点上接收外部输入光信号，并且在其它外部节点上提供外部输出光信号。
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公开(公告)号：US20120189025A1
公开(公告)日：2012-07-26
申请号：US12952838
申请日：2010-11-23
IPC分类号： H01S5/06
CPC分类号： H01S5/1071 , H01S5/021 , H01S5/02248 , H01S5/0261 , H01S5/0612 , H01S5/06255 , H01S5/1032 , H01S5/50
摘要： In a laser source, a first optical waveguide includes a gain medium, and a second optical waveguide includes a phase tuner which adjusts a phase value of the phase tuner to specify the wavelength of the laser source. Furthermore, the laser source includes a first ring resonator and a second ring resonator, which, respectively, are optically coupled to the first optical waveguide and the second optical waveguide at opposite ends of the laser source. In particular, coupling wavelengths of the first and second ring resonators may match a wavelength of the optical signal, thereby defining an optical resonance cavity in the laser source and selecting a laser mode of the laser source which is associated with the wavelength. Additionally, the laser source includes an optical amplifier that receives and amplifies the optical signal output from the optical resonance cavity.
摘要翻译： 在激光源中，第一光波导包括增益介质，第二光波导包括相位调谐器，其调节相位调谐器的相位值以指定激光源的波长。 此外，激光源包括第一环形谐振器和第二环形谐振器，其分别在激光源的相对端处光耦合到第一光波导和第二光波导。 特别地，第一和第二环形谐振器的耦合波长可以匹配光信号的波长，从而在激光源中限定光学谐振腔并选择与波长相关联的激光源的激光模式。 此外，激光源包括光放大器，其接收并放大从光谐振腔输出的光信号。
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公开(公告)号：US08103165B2
公开(公告)日：2012-01-24
申请号：US12176293
申请日：2008-07-18
CPC分类号： H04L12/413 , H04Q11/0062 , H04Q2011/0064 , H04Q2011/009
摘要： A method of detecting transmission collisions in an optical data interconnect system. The method includes initiating a data transmission of a data signal from a transmitting node over the optical data channel, transmitting a first collision detect signal from the transmitting node throughout a duration of the data transmission where the first collision detect signal is transmitted over an optical detection channel corresponding to the transmitting node, monitoring at the transmitting node of the optical data interconnect system for a predetermined period of time, where the optical data interconnect system further includes optical collision detection channels corresponding to each of a plurality of receiving nodes and one or more remaining nodes, and identifying a transmission collision when a second collision signal is received through one of the optical collision detection channels at the transmitting node during the predetermined period of time.
摘要翻译： 一种检测光学数据互连系统中的传输冲突的方法。 该方法包括通过光数据信道发起来自发射节点的数据信号的数据传输，在数据传输的持续时间内从发射节点发射第一冲突检测信号，其中第一冲突检测信号通过光学检测传输 信道，在光学数据互连系统的发送节点处监视预定时间段，其中光学数据互连系统还包括与多个接收节点中的每一个对应的光学冲突检测信道和一个或多个 剩余节点，并且在预定时间段期间通过发送节点的光学冲突检测信道之一接收到第二冲突信号时识别传输冲突。
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公开(公告)号：US20110235962A1
公开(公告)日：2011-09-29
申请号：US12730774
申请日：2010-03-24
CPC分类号： G02B6/12007 , G02F1/0147 , G02F1/025 , G02F1/3132
摘要： An optical device with high thermal tuning efficiency is described. This optical device may be implemented using a tri-layer structure (silicon-on-insulator technology), including: a substrate, a buried-oxide layer and a semiconductor layer. In particular, a thermally tunable optical waveguide may be defined in the semiconductor layer. Furthermore, a portion of the substrate under the buried-oxide layer and substantially beneath a location of the thermally tunable optical waveguide is fabricated so that a portion of the buried-oxide layer is exposed. In this way, the thermal impedance between the thermally tunable optical waveguide and an external environment is increased, and power consumption associated with thermal tuning of the optical waveguide is reduced.
摘要翻译： 描述了具有高热调谐效率的光学装置。 该光学器件可以使用三层结构（绝缘体上硅技术）来实现，包括：衬底，掩埋氧化物层和半导体层。 特别地，热可调谐光波导可以限定在半导体层中。 此外，制造掩埋氧化物层下面的基板的一部分并且基本上位于热可调谐光波导的位置下方，使得一部分掩埋氧化物层露出。 以这种方式，热可调谐光波导和外部环境之间的热阻抗增加，并且降低与光波导的热调谐相关的功耗。
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97.发明申请公开(公告)号：US20110200335A1
公开(公告)日：2011-08-18
申请号：US12707554
申请日：2010-02-17
申请人： Pranay Koka , Michael Oliver McCracken , Herbert Dewitt Schwetman , Xuezhe Zheng , Ashok Krishnamoorthy
发明人： Pranay Koka , Michael Oliver McCracken , Herbert Dewitt Schwetman , Xuezhe Zheng , Ashok Krishnamoorthy
IPC分类号： H04J14/08
CPC分类号： H04Q11/0062 , H04J14/0206 , H04J14/0212 , H04J14/0227 , H04Q2011/009
摘要： A system for optical data communication, including: a first sending node including a first data item for transmission to a first receiving node during a first timeslot; a second sending node including a second data item for transmission during a second timeslot; a first optical data link (ODL) and a second ODL; a first output switch configured to switch the first data item from the first sending node onto the first ODL during the first timeslot; a second output switch configured to switch the second data item from the second sending node onto the first ODL during the second timeslot; an optical coupler connecting the first and second ODL; and a first input switch operatively connecting the first receiving node with the second ODL and configured to switch the first data item from the second ODL to the first receiving node during the first timeslot.
摘要翻译： 一种用于光数据通信的系统，包括：第一发送节点，包括用于在第一时隙期间传输到第一接收节点的第一数据项; 第二发送节点，包括用于在第二时隙期间传输的第二数据项; 第一光学数据链路（ODL）和第二ODL; 第一输出开关，被配置为在第一时隙期间将第一数据项从第一发送节点切换到第一ODL; 第二输出开关，被配置为在所述第二时隙期间将所述第二数据项从所述第二发送节点切换到所述第一ODL; 连接第一和第二ODL的光耦合器; 以及第一输入开关，其可操作地将所述第一接收节点与所述第二ODL连接并且被配置为在所述第一时隙期间将所述第一数据项从所述第二ODL切换到所述第一接收节点。
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公开(公告)号：US20110170819A1
公开(公告)日：2011-07-14
申请号：US12687633
申请日：2010-01-14
CPC分类号： G02B6/1228 , G02F1/2257
摘要： An integrated circuit that includes an optical waveguide to convey an optical signal via an optical mode in an on-chip optical waveguide is described. In this integrated circuit, a cross-sectional area of the optical waveguide may be tapered in proximity to an electro-optic modulator in the integrated circuit, such as a germanium electro-optic modulator or a quantum-well (QW) electro-optic modulator. In particular, the cross-sectional area may be tapered from a first diameter distal from the electro-optic modulator to a second diameter proximate to the electro-optic modulator. This so-called ‘inverse taper’ may increase the spatial extent or size of the optical mode, thereby allowing the optical signal to be optically coupled to or from the electro-optic modulator with low optical loss.
摘要翻译： 描述了一种集成电路，其包括在片上光波导中经由光学模式传送光信号的光波导。 在该集成电路中，光波导的横截面积可以在集成电路中的电光调制器附近逐渐变细，例如锗电光调制器或量子阱（QW）电光调制器 。 特别地，横截面积可以从远离电光调制器的第一直径逐渐变细到靠近电光调制器的第二直径。 这种所谓的“倒锥度”可以增加光学模式的空间范围或尺寸，从而允许光学信号以低光损耗光学耦合到电光调制器。
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公开(公告)号：US20110091157A1
公开(公告)日：2011-04-21
申请号：US12581709
申请日：2009-10-19
IPC分类号： G02B6/26
CPC分类号： G02B6/13 , G02B6/12002
摘要： A multi-chip module (MCM), which includes a three-dimensional (3D) stack of chips that are coupled using optical interconnects, is described. In this MCM, disposed on a first surface of a middle chip in the 3D stack, there are: a first optical coupler, an optical waveguide, which is coupled to the first optical coupler, and a second optical coupler, which is coupled to the optical waveguide. The first optical coupler redirects an optical signal from the optical waveguide to a first direction (which is not in the plane of the first surface), or from the first direction to the optical waveguide. Moreover, the second optical coupler redirects the optical signal from the optical waveguide to a second direction (which is not in the plane of the first surface), or from the second direction to the optical waveguide. Note that an optical path associated with the second direction passes through an opening in a substrate in the middle chip.
摘要翻译： 描述了包括使用光学互连耦合的三维（3D）芯片堆叠的多芯片模块（MCM）。 在该MCM中，设置在3D堆叠中的中间芯片的第一表面上，存在：耦合到第一光耦合器的第一光耦合器，光波导和耦合到第三光耦合器的第二光耦合器， 光波导。 第一光学耦合器将来自光波导的光信号重定向到第一方向（其不在第一表面的平面中）或从第一方向到光波导。 此外，第二光耦合器将来自光波导的光信号重定向到第二方向（其不在第一表面的平面）或从第二方向到光波导。 注意，与第二方向相关联的光路通过中间芯片中的衬底中的开口。
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公开(公告)号：US20100266277A1
公开(公告)日：2010-10-21
申请号：US12426844
申请日：2009-04-20
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。
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