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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：US09316784B2
公开(公告)日：2016-04-19
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，诸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：US20150260914A1
公开(公告)日：2015-09-17
申请号：US13588261
申请日：2012-08-17
CPC分类号： G02B6/12023 , G02B6/12007 , G02B6/124 , G02B6/126 , G02B6/29308 , G02B6/29358
摘要： Using silicon photonic components that support a single polarization, the output of an optical receiver is independent of the polarization of an optical signal. In particular, using a polarization-diversity technique, the two orthogonal polarizations in a single-mode optical fiber are split in two and processed independently. For example, the two optical signals are provided by a polarizing splitting grating coupler. Subsequently, a wavelength channel in the two optical signals is selected using a wavelength-selective filter (for example, using a ring resonator or an echelle grating) and combined at an optical detector (such as a photo-detector) to achieve polarization-independent operation.
摘要翻译： 使用支持单一极化的硅光子分量，光接收机的输出与光信号的偏振无关。 特别地，使用偏振分集技术，将单模光纤中的两个正交偏振分成两部分并独立处理。 例如，两个光信号由偏振分光光栅耦合器提供。 随后，使用波长选择滤波器（例如，使用环形谐振器或梯形光栅）选择两个光信号中的波长信道，并在光学检测器（例如光电检测器）处组合以实现偏振无关 操作。
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公开(公告)号：US20140246571A1
公开(公告)日：2014-09-04
申请号：US13588248
申请日：2012-08-17
CPC分类号： G01J1/0407 , G01J1/0209 , G01J1/0425 , G01J1/42 , G02B6/12004 , G02B6/124
摘要： An integrated optical device includes a photo-detector (such as germanium) optically coupled to an optical waveguide. This photo-detector is deposited on the optical waveguide, and an optical signal propagating in the optical waveguide may be evanescently coupled to the photo-detector. In order to increase the absorption length of the photo-detector, a mirror (such as a distributed Bragg reflection grating) is included in the optical waveguide near the end of the photo-detector. This mirror reflects the optical signal back toward the photo-detector, thereby increasing the absorption of the optical signal by the photo-detector. In addition, absorption may be reduced by using electrical contacts that are electrically coupled to the photo-detector at locations where the optical mode of the optical signal is largely in the underlying optical waveguide, and by using a fingered metal layer to couple to the electrical contacts.
摘要翻译： 集成光学器件包括光耦合到光波导的光检测器（例如锗）。 该光检测器沉积在光波导上，并且在光波导中传播的光信号可以ev逝地耦合到光检测器。 为了增加光检测器的吸收长度，在光检测器端部附近的光波导中包括反射镜（例如分布式布拉格反射光栅）。 该反射镜将光信号反射回光检测器，由此增加光信号由光检测器的吸收。 此外，通过使用在光信号的光学模式主要位于下面的光波导中的位置处电耦合到光检测器的电接触，并且通过使用指状金属层耦合到电 联系人
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公开(公告)号：US08755655B2
公开(公告)日：2014-06-17
申请号：US12564701
申请日：2009-09-22
CPC分类号： G02B6/423 , G02B6/12 , G02B6/30 , G02B6/36 , G02B6/42 , G02B6/4228 , G02B6/4231 , G02B6/43 , H04B10/803
摘要： An optical module is described. This optical module includes at least two optical devices that communicate with each other using edge-to-edge optical coupling of an optical signal between optical components in the two optical devices. Note that the edge-to-edge optical coupling may occur without mode converters at edges of either of the optical devices. Furthermore, the edge-to-edge optical coupling may be facilitated by an alignment substrate, which is mechanically coupled to the two optical devices. This alignment substrate aligns the edges of the two optical devices so that they are approximately parallel to each other, and aligns the optical components in the two optical devices.
摘要翻译： 描述光学模块。 该光学模块包括使用两个光学装置中的光学部件之间的光信号的边缘到边缘光耦合来彼此通信的至少两个光学装置。 注意，边缘到边缘光耦合可能在任何光学器件的边缘处没有模式转换器。 此外，边缘到边缘光耦合可以通过机械耦合到两个光学器件的对准衬底来促进。 该对准衬底对准两个光学器件的边缘，使得它们彼此近似平行，并对准两个光学器件中的光学部件。
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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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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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