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81.发明授权公开(公告)号：US08406623B2
公开(公告)日：2013-03-26
申请号：US12707554
申请日：2010-02-17
申请人： Pranay Koka , Michael Oliver McCracken , Herbert Dewitt Schwetman, Jr. , Xuezhe Zheng , Ashok Krishnamoorthy
发明人： Pranay Koka , Michael Oliver McCracken , Herbert Dewitt Schwetman, Jr. , Xuezhe Zheng , Ashok Krishnamoorthy
IPC分类号： H04J14/00
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：US08385740B2
公开(公告)日：2013-02-26
申请号：US12176294
申请日：2008-07-18
CPC分类号： H04L12/413
摘要： A method of arbitrating data transmissions to prevent data collisions in an optical data interconnect system including a transmitting node, a plurality of receiving nodes, and one or more remaining nodes connected through an optical data channel. The method involves transmitting a transmission request signal from the transmitting node over an arbitration channel corresponding to the transmitting node, monitoring, at the transmitting node, a plurality of arbitration channels corresponding to each of the plurality of receiving nodes and the one or more remaining nodes at the transmitting node for a predetermined period of time, determining a start time for a data transmission from the transmitting node based on the monitored signals to prevent a data collision, and initiating a data transmission of a data signal from the transmitting node over the optical data channel at the determined start time.
摘要翻译： 一种仲裁数据传输的方法，以防止包括发送节点，多个接收节点以及通过光数据信道连接的一个或多个剩余节点的光数据互连系统中的数据冲突。 该方法涉及通过对应于发送节点的仲裁信道从发送节点发送发送请求信号，在发送节点处监视与多个接收节点中的每一个对应的多个仲裁信道，以及一个或多个剩余节点 在发送节点预定的时间段内，基于所监视的信号确定来自发送节点的数据传输的开始时间，以防止数据冲突，以及通过光学发送来自发送节点的数据信号的数据传输 数据通道在确定的开始时间。
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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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84.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：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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公开(公告)号：US12130474B2
公开(公告)日：2024-10-29
申请号：US17189969
申请日：2021-03-02
申请人： Xuezhe Zheng
发明人： Xuezhe Zheng
CPC分类号： G02B6/3502 , G02B6/3546 , H04Q1/147 , H04Q11/0003
摘要： A linear N×N robotic fiber optic switch is described. Notably, fiber adapters for connecting the input and output fibers are arranged linearly. Moreover, each fiber adaptor is driven by a push-pull mechanism such that it can be positioned to a front, center, or back position, with which the private plane of a fiber port can be separated from the other fiber ports and fiber connection can be configured using a simple linear translation robotic pickup free of interference in a compact space. Furthermore, a large scale fabric switch comprises 3 stages of N linear N×N robotic switches connected using fiber shuffles. Each stage or all three stages can share one robot to reduce cost. Scalability to large port counts may be accomplished proportional to N, the number of ports, rather than N2.
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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
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。
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88.发明授权Electrical contacts on top of waveguide structures for efficient optical modulation in silicon photonic devices 有权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
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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公开(公告)号：US06904195B2
公开(公告)日：2005-06-07
申请号：US10616244
申请日：2003-07-08
CPC分类号： G02B6/352 , G02B6/3518 , G02B6/3556 , G02B6/356 , G02B6/357 , G02B6/3588 , G02B6/3594 , H04Q11/0005 , H04Q2011/003 , H04Q2011/0039 , H04Q2011/0049
摘要： An apparatus and method of controlling optical loss in an optical switch to equalize optical power or loss in a group of optical signals in an optical transmission system relatively insensitive to mechanical vibration. In one embodiment a group of optical signals is input into an optical switch and selected optical signals are variably attenuated using synchronized control to two mirrors in order to provide more uniform power distribution among the group of optical signals without enhancing vibration sensitivity of the optical switch.
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公开(公告)号：US06597825B1
公开(公告)日：2003-07-22
申请号：US10016314
申请日：2001-10-30
申请人： Shifu Yuan , Xuezhe Zheng
发明人： Shifu Yuan , Xuezhe Zheng
IPC分类号： G02B626
CPC分类号： G02B6/3512 , G02B6/2817 , G02B6/3556 , G02B6/3582
摘要： An all-optical switch includes an array of input optical fibers and an array of output optical fibers. A rhomboidal prism beam splitter is positioned in operative relationship with the array of input fibers such that when an array of optical beams is propagated from the array of input optical fibers, the beam splitter splits the array of optical beams into a signal path and a tap path. The rhomboidal prism beam splitter includes a partial internal reflection (PIR) surface and a total internal reflection (TIR) surface. The PIR surface and the TIR surface cooperate to split the array of optical beams into the signal path and the tap path such that the signal path is substantially parallel to the tap path upon exiting the beam splitter.
摘要翻译： 全光开关包括输入光纤阵列和输出光纤阵列。 菱形棱镜分束器与输入光纤阵列定位成操作关系，使得当光束阵列从输入光纤阵列传播时，分束器将光束阵列分成信号路径和水龙头 路径。 菱形棱镜分束器包括部分内反射（PIR）表面和全内反射（TIR）表面。 PIR表面和TIR表面配合以将光束阵列分裂成信号路径和抽头路径，使得当离开分束器时信号路径基本上平行于抽头路径。
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