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21. 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。

22. 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。

23. 发明申请

US20100329685A1 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：US20100329685A1
公开(公告)日：2010-12-30
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： H04J14/02 , H04B10/04 , H04B10/06
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。

24. 发明授权

US09176291B2 Grating coupler for inter-chip optical coupling 有权
标题翻译：用于片间光耦合的光栅耦合器
公开(公告)号：US09176291B2
公开(公告)日：2015-11-03
申请号：US13588242
申请日：2012-08-17
申请人： Guoliang Li , Ying L. Luo , Xuezhe Zheng , John E. Cunningham , Ashok V. Krishnamoorthy
发明人： Guoliang Li , Ying L. Luo , Xuezhe Zheng , John E. Cunningham , Ashok V. Krishnamoorthy
IPC分类号： G02B6/42 , G02B6/12 , G02B6/34 , G02B6/124 , G02B6/122 , G02B6/134
CPC分类号： G02B6/4296 , G02B6/12004 , G02B6/1228 , G02B6/124 , G02B6/1347 , G02B6/34 , G02B2006/12188 , H01S5/02252 , H01S5/026 , H01S5/1014 , H01S5/1032 , H01S5/14 , H01S5/187
摘要： A photonic integrated circuit (PIC) that includes an optical source that provides an optical signal having a wavelength is described. This optical source includes a reflecting layer, a bottom cladding layer, an active layer (such as a III-V semiconductor) having a bandgap wavelength that exceeds that of silicon, and a top cladding layer. Moreover, an optical coupler (such as a grating coupler) that couples the optical signal out of a plane of the active layer is included in a region of the active layer. In this region, the top cladding layer is absent. Furthermore, in an adjacent region, the top cladding layer includes an inverse taper so that the top cladding layer is tapered down from a width distal from the region. In conjunction with the optical coupler, the inverse taper may facilitate low-loss optical coupling of the optical signal between the PIC and another PIC.
摘要翻译：描述了包括提供具有波长的光信号的光源的光子集成电路（PIC）。该光源包括反射层，底部包层，具有超过硅的带隙波长的有源层（例如III-V半导体）和顶部覆层。此外，将有源层的平面耦合光信号的光耦合器（诸如光栅耦合器）包括在有源层的区域中。在该区域中，顶层包层不存在。此外，在相邻区域中，顶部包层具有倒锥形，使得顶部包层从远离该区域的宽度向下锥形。结合光耦合器，逆锥度可以促进PIC和另一个PIC之间的光信号的低损耗光耦合。

25. 发明申请

US20150260913A1 GRATING COUPLER FOR INTER-CHIP OPTICAL COUPLING 有权
标题翻译：用于芯片间光耦合的光栅耦合器
公开(公告)号：US20150260913A1
公开(公告)日：2015-09-17
申请号：US13588242
申请日：2012-08-17
申请人： Guoliang Li , Ying L. Luo , Xuezhe Zheng , John E. Cunningham , Ashok V. Krishnamoorthy
发明人： Guoliang Li , Ying L. Luo , Xuezhe Zheng , John E. Cunningham , Ashok V. Krishnamoorthy
IPC分类号： G02B6/124 , G02B6/134 , G02B6/34 , G02B6/122
CPC分类号： G02B6/4296 , G02B6/12004 , G02B6/1228 , G02B6/124 , G02B6/1347 , G02B6/34 , G02B2006/12188 , H01S5/02252 , H01S5/026 , H01S5/1014 , H01S5/1032 , H01S5/14 , H01S5/187
摘要： A photonic integrated circuit (PIC) that includes an optical source that provides an optical signal having a wavelength is described. This optical source includes a reflecting layer, a bottom cladding layer, an active layer (such as a III-V semiconductor) having a bandgap wavelength that exceeds that of silicon, and a top cladding layer. Moreover, an optical coupler (such as a grating coupler) that couples the optical signal out of a plane of the active layer is included in a region of the active layer. In this region, the top cladding layer is absent. Furthermore, in an adjacent region, the top cladding layer includes an inverse taper so that the top cladding layer is tapered down from a width distal from the region. In conjunction with the optical coupler, the inverse taper may facilitate low-loss optical coupling of the optical signal between the PIC and another PIC.
摘要翻译：描述了包括提供具有波长的光信号的光源的光子集成电路（PIC）。该光源包括反射层，底部包层，具有超过硅的带隙波长的有源层（例如III-V半导体）和顶部覆层。此外，将有源层的平面耦合光信号的光耦合器（诸如光栅耦合器）包括在有源层的区域中。在该区域中，顶层包层不存在。此外，在相邻区域中，顶部包层具有倒锥形，使得顶部包层从远离该区域的宽度向下锥形。结合光耦合器，逆锥度可以促进PIC和另一个PIC之间的光信号的低损耗光耦合。

26. 发明授权

US08768170B2 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：US08768170B2
公开(公告)日：2014-07-01
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。

27. 发明申请

US20110179208A1 TIME DIVISION MULTIPLEXING BASED ARBITRATION FOR SHARED OPTICAL LINKS 有权
标题翻译：时分多路复用基于共享光链路的仲裁
公开(公告)号：US20110179208A1
公开(公告)日：2011-07-21
申请号：US12688749
申请日：2010-01-15
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： G06F13/372
CPC分类号： H04J3/1682 , G06F15/17381 , H04J14/08
摘要： A method for arbitration including selecting, for an arbitration interval corresponding to a timeslot, a sending node from a plurality of sending nodes in an arbitration domain, where the plurality of sending nodes include a plurality of source counters; broadcasting, by the sending node and in response to selecting the sending node, a transmitter arbitration request for the timeslot during the arbitration interval; receiving, by the plurality of sending nodes, the transmitter arbitration request; incrementing the plurality of source counters in response to receiving the transmitter arbitration request; and sending, during the timeslot, a data item from the sending node to a receiving node via an optical data channel.
摘要翻译：一种仲裁方法，包括从仲裁域中的多个发送节点中选择对应于时隙的仲裁间隔的发送节点，其中所述多个发送节点包括多个源计数器; 由发送节点广播并响应于选择发送节点在仲裁间隔期间对时隙的发射机仲裁请求; 由所述多个发送节点接收所述发射机仲裁请求; 响应于接收到发射机仲裁请求而递增所述多个源计数器; 以及在所述时隙期间经由光学数据信道从所述发送节点发送到接收节点的数据项。

28. 发明申请

US20110200332A1 SHARED-SOURCE-ROW OPTICAL DATA CHANNEL ORGANIZATION FOR A SWITCHED ARBITRATED ON-CHIP OPTICAL NETWORK 有权
标题翻译：用于切换的仲裁在线光网络的共享光盘数据通道组织
公开(公告)号：US20110200332A1
公开(公告)日：2011-08-18
申请号：US12723591
申请日：2010-03-12
申请人： Michael Oliver McCracken , Pranay Koka , Herbert Dewitt Schwetman , Xuezhe Zheng , Ashok Krishnamoorthy
发明人： Michael Oliver McCracken , Pranay Koka , Herbert Dewitt Schwetman , Xuezhe Zheng , Ashok Krishnamoorthy
IPC分类号： H04J14/08
CPC分类号： H04Q11/0062 , H04Q11/0005 , H04Q2011/005 , H04Q2011/0058 , H04Q2011/0064
摘要： A system including first and second sending nodes, a horizontal optical data link (ODL) having optical signals propagating in opposite directions in first and second waveguide segments, a vertical ODL having optical signals propagating in the same direction throughout third and fourth waveguide segments, a first optical output switch operatively connecting the first sending node and the first waveguide segment and configured to switch first data item onto the first waveguide segment during a first timeslot, a second optical output switch operatively connecting the second sending node and the second waveguide segment and configured to switch second data item onto the second waveguide segment during a second timeslot, and an optical coupler pair operatively connecting the first and second waveguide segments to the third and fourth waveguide segments, respectively, and redirecting the first and the second data items from the horizontal to the vertical ODL.
摘要翻译：一种包括第一和第二发送节点的系统，具有在第一和第二波导段中以相反方向传播的光信号的水平光数据链路（ODL），具有沿相同方向在第三和第四波导段传播的光信号的垂直ODL，第一光输出开关，其可操作地连接第一发送节点和第一波导段，并且被配置为在第一时隙期间将第一数据项切换到第一波导段上;第二光输出开关，可操作地连接第二发送节点和第二波导段，在第二时隙期间将第二数据项切换到第二波导段上，以及光耦合器对，将第一和第二波导段分别可操作地连接到第三和第四波导段，并将第一和第二数据项从水平方向重定向到垂直ODL。

29. 发明授权

US08824496B2 Two-phase arbitration mechanism for shared optical links 有权
标题翻译：共享光链路的两相仲裁机制
公开(公告)号：US08824496B2
公开(公告)日：2014-09-02
申请号：US12610124
申请日：2009-10-30
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： H04L12/43
CPC分类号： H04J14/0256 , H04J14/0204 , H04J14/0205 , H04J14/0212 , H04J14/0267 , H04Q2213/1301
摘要： A method for arbitration in an arbitration domain. The method includes: receiving, by each node of a plurality of nodes in the arbitration domain, an arbitration request from each sending node of the plurality of nodes in the arbitration domain, where the plurality of nodes in the arbitration domain each use a shared data channel to send data to a set of receiving nodes; assigning, by each node in the arbitration domain, consecutive time slots to each sending node based on a plurality of priorities assigned to the plurality of nodes in the arbitration domain; for each time slot: sending, from the arbitration domain, a switch request to a receiving node designated by the sending node, where the receiving node is in the set of receiving nodes; and sending, by the sending node, data to the receiving node via the shared data channel during the time slot.
摘要翻译：仲裁域仲裁的方法。该方法包括：由仲裁域中的多个节点的每个节点接收来自仲裁域中的多个节点的每个发送节点的仲裁请求，其中仲裁域中的多个节点都使用共享数据通道将数据发送到一组接收节点; 基于分配给仲裁域中的多个节点的多个优先级，将仲裁域中的每个节点分配给每个发送节点的连续时隙; 对于每个时隙：从所述仲裁域发送切换请求到由所述发送节点指定的接收节点，其中所述接收节点在所述接收节点集合中; 并且在该时隙期间，由发送节点将数据经由共享数据信道发送到接收节点。

30. 发明授权

US08285140B2 Shared-source-row optical data channel organization for a switched arbitrated on-chip optical network 有权
标题翻译：用于交换仲裁的片上光网络的共享源行光数据信道组织
公开(公告)号：US08285140B2
公开(公告)日：2012-10-09
申请号：US12723591
申请日：2010-03-12
申请人： Michael Oliver McCracken , Pranay Koka , Herbert Dewitt Schwetman, Jr. , Xuezhe Zheng , Ashok Krishnamoorthy
发明人： Michael Oliver McCracken , Pranay Koka , Herbert Dewitt Schwetman, Jr. , Xuezhe Zheng , Ashok Krishnamoorthy
IPC分类号： H04J14/00
CPC分类号： H04Q11/0062 , H04Q11/0005 , H04Q2011/005 , H04Q2011/0058 , H04Q2011/0064
摘要： A system including first and second sending nodes, a horizontal optical data link (ODL) having optical signals propagating in opposite directions in first and second waveguide segments, a vertical ODL having optical signals propagating in the same direction throughout third and fourth waveguide segments, a first optical output switch operatively connecting the first sending node and the first waveguide segment and configured to switch first data item onto the first waveguide segment during a first timeslot, a second optical output switch operatively connecting the second sending node and the second waveguide segment and configured to switch second data item onto the second waveguide segment during a second timeslot, and an optical coupler pair operatively connecting the first and second waveguide segments to the third and fourth waveguide segments, respectively, and redirecting the first and the second data items from the horizontal to the vertical ODL.
摘要翻译：一种包括第一和第二发送节点的系统，具有在第一和第二波导段中以相反方向传播的光信号的水平光数据链路（ODL），具有沿相同方向在第三和第四波导段传播的光信号的垂直ODL，第一光输出开关，其可操作地连接第一发送节点和第一波导段，并且被配置为在第一时隙期间将第一数据项切换到第一波导段上;第二光输出开关，可操作地连接第二发送节点和第二波导段，在第二时隙期间将第二数据项切换到第二波导段上，以及光耦合器对，将第一和第二波导段分别可操作地连接到第三和第四波导段，并将第一和第二数据项从水平方向重定向到垂直ODL。

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