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公开(公告)号：US08768170B2
公开(公告)日：2014-07-01
申请号：US13156144
申请日：2011-06-08
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。
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公开(公告)号：US08768123B2
公开(公告)日：2014-07-01
申请号：US13566598
申请日：2012-08-03
IPC分类号： G02B6/02
CPC分类号： G02B6/13 , G02B6/12002
摘要： A multi-chip module (MCM) includes a stack of chips that are coupled using optical interconnects. On a first surface of a middle chip in the 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. 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. An optical path associated with the second direction passes through an opening in a substrate in the middle chip.
摘要翻译： 多芯片模块（MCM）包括使用光学互连耦合的一堆芯片。 在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，光波导和耦合到光波导的第二光耦合器。 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。 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中）或从第二方向到光波导。 与第二方向相关联的光路通过中间芯片中的基板的开口。
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公开(公告)号：US08737846B2
公开(公告)日：2014-05-27
申请号：US13361873
申请日：2012-01-30
申请人： Xuezhe Zheng , Ying Luo , Guoliang Li , Ashok V. Krishnamoorthy
发明人： Xuezhe Zheng , Ying Luo , Guoliang Li , Ashok V. Krishnamoorthy
CPC分类号： H04J14/02 , G02B6/29308 , H04B10/506 , H04B10/572
摘要： An optical source uses feedback to maintain a substantially fixed spacing between adjacent wavelengths in a set of wavelengths in a wavelength comb output by the optical source. In particular, a set of light sources in the optical source provide optical signals having the set of wavelengths. Moreover, the optical signals are output at diffraction angles of an optical device in the optical source (such as an echelle grating), and optical detectors in the optical source determine optical metrics associated with the optical signals. Furthermore, control logic in the optical source provides control signals to the set of light sources based on the determined optical metrics.
摘要翻译： 光源使用反馈来维持由光源输出的波长梳输出中的一组波长中的相邻波长之间的基本上固定的间隔。 特别地，光源中的一组光源提供具有该组波长的光信号。 此外，光信号以光源（例如梯形光栅）中的光学装置的衍射角输出，并且光源中的光学检测器确定与光信号相关联的光学度量。 此外，光源中的控制逻辑基于所确定的光学量度向光源组提供控制信号。
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公开(公告)号：US20140086585A1
公开(公告)日：2014-03-27
申请号：US13551432
申请日：2012-07-17
IPC分类号： H04J14/02
CPC分类号： H04J14/02 , G02B6/12007 , G02B6/1225 , G02B6/29308 , G02B6/29326 , G02B6/2938 , G02B2006/12107
摘要： An optical multiplexer/de-multiplexer (MUX/de-MUX) includes a two-dimensional pattern of features in a propagation region that conveys an optical signal having wavelengths. A given feature in this pattern has a characteristic length and the features have an average pitch, both of which are less than fundamental smallest of the wavelengths divided by an effective index of refraction of the propagation region. Moreover, an optical device in the optical MUX/de-MUX images and diffracts the optical signal using a reflective geometry, and provides the imaged and diffracted optical signal to output ports. For example, the optical device may include an echelle grating.
摘要翻译： 光复用器/解复用器（MUX / de-MUX）包括传送具有波长的光信号的传播区域中的特征的二维图案。 该图案中的给定特征具有特征长度，并且特征具有平均间距，它们都小于波长的基本最小值除以传播区域的有效折射率。 此外，光学MUX /解复用器中的光学器件成像并使用反射几何衍射光信号，并将成像和衍射的光信号提供给输出端口。 例如，光学装置可以包括一个梯形光栅。
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公开(公告)号：US20130195461A1
公开(公告)日：2013-08-01
申请号：US13361866
申请日：2012-01-30
IPC分类号： H04J14/02
CPC分类号： H04J14/02 , H04B10/506 , H04J14/0221
摘要： An optical source includes a set of N light sources that provide a corresponding set of N optical signals having N carrier wavelengths. These optical signals are combined into a seed optical signal and transported to a substrate using an optical fiber. This substrate includes a set of K optical amplifiers that amplify the seed optical signal and provide a set of M output optical signals on a corresponding set of M output optical waveguides (where M is less than K). In this way, a total power of the set of M output optical signals may be significantly larger than that of the seed optical signal, thereby ensuring that a majority of a power efficiency of the optical source is associated with power efficiencies of the set of K optical amplifiers instead of power efficiencies of the set of N light sources.
摘要翻译： 光源包括一组N个光源，其提供具有N个载波波长的相应的一组N个光信号。 这些光信号被组合成种子光信号，并使用光纤传输到基板。 该衬底包括一组放大种子光信号的K个放大器，并在相应的一组M个输出光波导（其中M小于K）上提供一组M个输出光信号。 以这种方式，一组M个输出光信号的总功率可以显着大于种子光信号的总功率，从而确保光源的大部分功率效率与该组K的功率效率相关联 光放大器而不是N组光源的功率效率。
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公开(公告)号：US08467122B2
公开(公告)日：2013-06-18
申请号：US13182227
申请日：2011-07-13
IPC分类号： H01S3/00
CPC分类号： H01S5/142 , H01S3/1055 , H01S3/106 , H01S5/1007 , H01S5/1032
摘要： A laser source includes a semiconductor optical amplifier (SOA) as a gain medium that receives and amplifies an optical signal characterized by at least a wavelength associated with a lasing mode of the laser source. This laser source includes a first optical waveguide and a second optical waveguide optically coupled to the SOA. Furthermore, a wavelength-selective reflector is optically coupled to the first optical waveguide and the second optical waveguide, where a closed loop defined by the SOA, the first optical waveguide, the wavelength-selective reflector and the second optical waveguide defines a cavity of the laser source.
摘要翻译： 激光源包括作为增益介质的半导体光放大器（SOA），其接收和放大以与激光源的激光模式相关联的至少一个波长为特征的光信号。 该激光源包括光耦合到SOA的第一光波导和第二光波导。 此外，波长选择性反射器光耦合到第一光波导和第二光波导，其中由SOA，第一光波导，波长选择反射器和第二光波导限定的闭环限定了 激光源。
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公开(公告)号：US20130121635A1
公开(公告)日：2013-05-16
申请号：US13293624
申请日：2011-11-10
申请人： Hiren D. Thacker , Xuezhe Zheng , Ivan Shubin , Kannan Raj , John E. Cunningham , Ashok V. Krishnamoorthy
发明人： Hiren D. Thacker , Xuezhe Zheng , Ivan Shubin , Kannan Raj , John E. Cunningham , Ashok V. Krishnamoorthy
CPC分类号： G02B6/26 , Y10T29/49826
摘要： In an MCM, an optical signal is conveyed by an optical waveguide disposed on a surface of a first substrate to an optical coupler having a vertical facet. This optical coupler has an optical mode that is different than the optical mode of the optical waveguide. For example, the spatial extent of the optical mode associated with the optical coupler may be larger, thereby reducing optical losses and sensitivity to alignment errors. Then, the optical signal is directly coupled from the vertical facet to a facing vertical facet of an identical optical coupler on another substrate, and the optical signal is conveyed in another optical waveguide disposed on the other substrate.
摘要翻译： 在MCM中，光信号由设置在第一基板的表面上的光波导传送到具有垂直面的光耦合器。 该光耦合器具有与光波导的光学模式不同的光学模式。 例如，与光耦合器相关联的光学模式的空间范围可能更大，从而减少光学损耗和对准误差的灵敏度。 然后，光信号从另一基板上的垂直面到同一光耦合器的面向垂直面直接耦合，并且光信号在设置在另一基板上的另一光波导中传送。
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公开(公告)号：US20130016980A1
公开(公告)日：2013-01-17
申请号：US13180340
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： H04B10/801 , H04J14/02 , H04J14/021 , H04J14/0212 , H04J14/0213 , H04J14/0273
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 tunable light sources. 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 a given carrier wavelength associated with the given integrated circuit when receiving information from at least the other of the integrated circuits. Furthermore, control logic in the MCM provides a control signal to the set of tunable light sources to specify carrier wavelengths in the optical signals output by the set of tunable light sources, thereby defining routing of at least the one of the optical signals in the MCM during communication between at least a pair of the integrated circuits.
摘要翻译： 在多芯片模块（MCM）中，集成电路通过光波导耦合。 这些集成电路从一组可调光源接收光信号。 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，接收具有与给定集成电路相关联的给定载波波长的至少一个调制光信号。 此外，MCM中的控制逻辑向可调谐光源组提供控制信号，以指定由可调谐光源组输出的光信号中的载波波长，从而定义MCM中的至少一个光信号的路由 在至少一对集成电路之间的通信期间。
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公开(公告)号：US20130016941A1
公开(公告)日：2013-01-17
申请号：US13180364
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
IPC分类号： G02B6/12
CPC分类号： G02B6/43 , G02B6/4215 , G02B2006/12061
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 tunable drop filters optically coupled to the optical waveguides and associated integrated circuits, wherein the tunable 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 tunable 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调滴式滤波器，其中可调滴式滤波器将可调节的波段传送到集成电路中的接收器。 另外，MCM中的控制逻辑为可调降滤波器提供了一个控制信号，以指定波长的可调波段。
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公开(公告)号：US20130016423A1
公开(公告)日：2013-01-17
申请号：US13182227
申请日：2011-07-13
IPC分类号： H01S5/20
CPC分类号： H01S5/142 , H01S3/1055 , H01S3/106 , H01S5/1007 , H01S5/1032
摘要： A laser source includes a semiconductor optical amplifier (SOA) as a gain medium that receives and amplifies an optical signal characterized by at least a wavelength associated with a lasing mode of the laser source. This laser source includes a first optical waveguide and a second optical waveguide optically coupled to the SOA. Furthermore, a wavelength-selective reflector is optically coupled to the first optical waveguide and the second optical waveguide, where a closed loop defined by the SOA, the first optical waveguide, the wavelength-selective reflector and the second optical waveguide defines a cavity of the laser source.
摘要翻译： 激光源包括作为增益介质的半导体光放大器（SOA），其接收和放大以与激光源的激光模式相关联的至少一个波长为特征的光信号。 该激光源包括光耦合到SOA的第一光波导和第二光波导。 此外，波长选择性反射器光耦合到第一光波导和第二光波导，其中由SOA，第一光波导，波长选择反射器和第二光波导限定的闭环限定了 激光源。
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