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公开(公告)号：US08204385B2
公开(公告)日：2012-06-19
申请号：US12493509
申请日：2009-06-29
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。
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公开(公告)号：US20100266295A1
公开(公告)日：2010-10-21
申请号：US11962415
申请日：2007-12-21
IPC分类号： H04B10/12
CPC分类号： H04J14/02 , H04B10/801 , H04J14/0227 , H04Q11/0062 , H04Q2011/0096
摘要： Embodiments of a system are described. This system includes an array of chip modules (CMs) that are configured to communicate data signals with each other via optical communication. In a given CM module, optical signal paths, such as waveguides, are routed in the same way as in the other CMs in the array. In this way, a common optical design in the CMs may be used in the system to prevent data conflicts during the optical communication.
摘要翻译： 描述系统的实施例。 该系统包括被配置为经由光通信彼此通信数据信号的芯片模块（CM）阵列。 在给定的CM模块中，诸如波导的光信号路径以与阵列中的其他CM相同的方式路由。 以这种方式，可以在系统中使用CM中的普通光学设计来防止光通信期间的数据冲突。
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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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公开(公告)号：US20130315526A1
公开(公告)日：2013-11-28
申请号：US13479109
申请日：2012-05-23
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，例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。
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公开(公告)号：US08532446B2
公开(公告)日：2013-09-10
申请号：US13048250
申请日：2011-03-15
CPC分类号： G02B6/12007 , G02B6/29382 , G02B2006/12147 , H04J14/0201
摘要： An optical multiplexer/demultiplexer is described. In this optical multiplexer/demultiplexer, multiple coupled-waveguide grating devices are optically coupled to a bus optical waveguide. A given coupled-waveguide grating device has a band-pass filter characteristic that encompasses multiple optical channels, thereby providing coarse optical filtering. Moreover, the optical multiplexer/demultiplexer includes multiple add/drop filters (such as ring resonators) that optically couple to the coupled-waveguide grating devices. A given add/drop filter has a filter bandwidth corresponding to a given optical channel, thereby providing fine optical filtering. Furthermore, the band-pass filter characteristic of the given coupled-waveguide grating device is approximately equal to or less than a free spectral range (FSR) of the given add/drop filter.
摘要翻译： 描述了光复用器/解复用器。 在该光复用器/解复用器中，多个耦合波导光栅器件光耦合到总线光波导。 给定的耦合波导光栅器件具有包含多个光通道的带通滤波器特性，由此提供粗略的光学滤波。 此外，光复用器/解复用器包括光耦合到耦合波导光栅器件的多个加/减滤波器（例如环形谐振器）。 给定的分插滤波器具有对应于给定光信道的滤波器带宽，从而提供精细的光学滤波。 此外，给定耦合波导光栅装置的带通滤波器特性近似等于或小于给定加/减滤波器的自由光谱范围（FSR）。
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公开(公告)号：US20130136389A1
公开(公告)日：2013-05-30
申请号：US13307298
申请日：2011-11-30
CPC分类号： G02B6/12007 , G02B6/124 , G02B6/126 , G02B6/2813 , G02B6/29326
摘要： An optical de-MUX includes a sub-wavelength grating that magnifies an input optical signal. In particular, along a direction perpendicular to a propagation direction of the optical signal, the sub-wavelength grating has a spatially varying effective index of refraction that is larger at a center of the sub-wavelength grating than at an edge of the sub-wavelength grating. Moreover, the optical de-MUX includes an optical device that images and diffracts the optical signal using a reflective geometry, and which provides different diffraction orders to output ports. For example, the optical device may include an echelle grating.
摘要翻译： 光学去MUX包括放大输入光信号的子波长光栅。 特别地，沿着与光信号的传播方向垂直的方向，亚波长光栅具有空间变化的有效折射率，其在亚波长光栅的中心处比在亚波长的边缘处更大 光栅。 此外，光学去MUX包括使用反射几何形状对光学信号进行成像和衍射并且向输出端口提供不同衍射级的光学装置。 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：US08401345B2
公开(公告)日：2013-03-19
申请号：US12816935
申请日：2010-06-16
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。
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公开(公告)号：US08121446B2
公开(公告)日：2012-02-21
申请号：US12566101
申请日：2009-09-24
CPC分类号： G02B6/4214 , G02B6/4201 , G02B6/43
摘要： A multi-chip module (MCM) is described. This MCM includes two substrates having facing surfaces. Disposed on a surface of a first of these substrates, there is an optical waveguide, having an eigenmode in the plane of the surface, and an optical coupler, which redirects optical signals to and/or from the optical waveguide and a direction normal to the surface. Furthermore, disposed on a surface of a second of the substrates, which faces the surface of the first substrate, and which overlaps the optical coupler, there is an optoelectronic device. This optoelectronic device, which has an eigenmode in a direction perpendicular to the surface of the second substrate, selectively receives or provides the optical signal to and/or from the optical coupler. For example, the selective receiving or providing may be controlled by selectively applying a potential to the quantum-well device, thereby changing the optical properties of the optoelectronic device.
摘要翻译： 描述了多芯片模块（MCM）。 该MCM包括具有相对表面的两个基板。 设置在这些基板中的第一个基板的表面上，存在在表面的平面中具有本征模的光波导和光耦合器，其将光信号重定向到和/或从光波导和垂直于 表面。 此外，设置在面对第一基板的表面并且与光耦合器重叠的第二基板的表面上，存在光电子器件。 该光电子器件在垂直于第二衬底的表面的方向上具有本征模式，选择性地接收或向光耦合器提供光信号。 例如，可以通过选择性地向量子阱器件施加电势来控制选择性接收或提供，从而改变光电器件的光学特性。
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公开(公告)号：US20110255822A1
公开(公告)日：2011-10-20
申请号：US12759781
申请日：2010-04-14
申请人： Xuezhe Zheng , Jin Yao , Ashok V. Krishnamoorthy
发明人： Xuezhe Zheng , Jin Yao , Ashok V. Krishnamoorthy
CPC分类号： G02B6/3508 , G02B6/3536 , G02B6/3546 , G02B6/356 , G02B6/357 , G02B6/3596
摘要： An optical switch is described that includes two optical waveguides, which are defined in a semiconductor layer, positioned proximate to an intermediate component, such as a micro-resonator or a directional coupler. Material underneath a portion of either or both optical waveguides is removed so that the portion of either or both optical waveguides is free standing, and a group of electrodes is proximate to the free-standing portion of either or both optical waveguides. During operation of the optical switch, a spacing-control circuit applies an electrical signal to the group of electrodes. An electrostatic force associated with the electrical signal modifies a spacing between the free-standing portion of either or both optical waveguides and the intermediate component, thereby substantially increasing optical coupling between either or both optical waveguides and the intermediate component to convey a broadband optical signal between the optical waveguides.
摘要翻译： 描述了一种光开关，其包括在半导体层中限定的两个光波导，其位于诸如微谐振器或定向耦合器之类的中间部件附近。 一个或两个光波导的一部分下方的材料被去除，使得光波导中的一个或两个或两个的一部分是自由站立的，并且一组电极接近任一个或两个光波导的独立部分。 在光开关的操作期间，间隔控制电路将电信号施加到该组电极。 与电信号相关联的静电力改变光波导中的一个或两个的独立部分与中间部件之间的间隔，从而基本上增加光波导和中间部件之间的光耦合，以便在两个光波导和中间部件之间传送宽带光信号 光波导。
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