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91. 发明申请

US20130265624A1 SURFACE-NORMAL OPTICAL COUPLING USING A HOLOGRAPHIC RECORDING MATERIAL 有权
标题翻译：使用全息记录材料进行表面正常光学耦合
公开(公告)号：US20130265624A1
公开(公告)日：2013-10-10
申请号：US13440839
申请日：2012-04-05
申请人： Xuezhe Zheng , Ashok V. Krishnamoorthy , Kannan Raj , James R. Adleman
发明人： Xuezhe Zheng , Ashok V. Krishnamoorthy , Kannan Raj , James R. Adleman
IPC分类号： G02B6/122
CPC分类号： G02B6/122 , G02B6/4204 , G03H1/0248 , G03H2001/0434 , G03H2223/16 , G03H2270/54
摘要： An integrated circuit includes a holographic recording material substantially filling a cavity in a semiconductor layer. During operation of the integrated circuit, a holographic pattern in the holographic recording is reconstructed and used to diffract an optical signal propagating in a plane of an optical waveguide, which is defined in the semiconductor layer out of the plane through the cavity. In this way, the holographic recording material may be used to couple the optical signal to an optical fiber or another integrated circuit.
摘要翻译：集成电路包括基本上填充半导体层中的空腔的全息记录材料。在集成电路的操作期间，全息记录中的全息图被重构并用于将在半导体层中定义的光波导的平面中传播的光信号衍射出通过空腔的平面。以这种方式，全息记录材料可以用于将光信号耦合到光纤或另一集成电路。

92. 发明授权

US08340479B2 Electro-optic modulator with inverse tapered waveguides 有权
标题翻译：具有倒锥形波导的电光调制器
公开(公告)号：US08340479B2
公开(公告)日：2012-12-25
申请号：US12687633
申请日：2010-01-14
申请人： Xuezhe Zheng , Ashok V. Krishnamoorthy , John E. Cunningham
发明人： Xuezhe Zheng , Ashok V. Krishnamoorthy , John E. Cunningham
IPC分类号： G02B6/12
CPC分类号： G02B6/1228 , G02F1/2257
摘要： An integrated circuit that includes an optical waveguide to convey an optical signal via an optical mode in an on-chip optical waveguide is described. In this integrated circuit, a cross-sectional area of the optical waveguide may be tapered in proximity to an electro-optic modulator in the integrated circuit, such as a germanium electro-optic modulator or a quantum-well (QW) electro-optic modulator. In particular, the cross-sectional area may be tapered from a first diameter distal from the electro-optic modulator to a second diameter proximate to the electro-optic modulator. This so-called ‘inverse taper’ may increase the spatial extent or size of the optical mode, thereby allowing the optical signal to be optically coupled to or from the electro-optic modulator with low optical loss.
摘要翻译：描述了一种集成电路，其包括用于在片上光波导中经由光学模式传送光信号的光波导。在该集成电路中，光波导的横截面积可以在集成电路中的电光调制器附近逐渐变细，例如锗电光调制器或量子阱（QW）电光调制器。特别地，横截面积可以从远离电光调制器的第一直径逐渐变细到靠近电光调制器的第二直径。这种所谓的反向锥度可以增加光学模式的空间范围或尺寸，从而允许光学信号光电耦合到或具有低光损耗的电光调制器。

93. 发明授权

US08320761B2 Broadband and wavelength-selective bidirectional 3-way optical splitter 有权
标题翻译：宽带和波长选择性双向3路光分路器
公开(公告)号：US08320761B2
公开(公告)日：2012-11-27
申请号：US11962426
申请日：2007-12-21
申请人： Xuezhe Zheng , Brian W. O'Krafka , Ashok V. Krishnamoorthy , John E. Cunningham
发明人： Xuezhe Zheng , Brian W. O'Krafka , Ashok V. Krishnamoorthy , John E. Cunningham
IPC分类号： H04J14/00 , G02B6/26 , G02B6/42
CPC分类号： G02B6/2804 , G02B6/29343 , G02B6/29352 , G02B6/43 , G02B2006/1215 , H04J14/0212 , H04Q2213/1301 , H04Q2213/13322
摘要： Embodiments of a bidirectional 3-way optical splitter are described. This bidirectional 3-way optical splitter includes an optical splitter having: a first external node, a second external node, a third external node, and a fourth external node. In one mode of operation, the optical splitter may be configured to receive an external input optical signal on the first external node and to provide external output optical signals on the other external nodes. Moreover, in another mode of operation, the optical splitter may be configured to receive the external input optical signal on the third external node and to provide the external output optical signals on the other external nodes.
摘要翻译：描述双向3路光分路器的实施例。这种双向3路光分路器包括具有：第一外部节点，第二外部节点，第三外部节点和第四外部节点的光分路器。在一种操作模式中，光分路器可以被配置为在第一外部节点上接收外部输入光信号，并且在其它外部节点上提供外部输出光信号。此外，在另一种操作模式中，光分路器可以被配置为在第三外部节点上接收外部输入光信号，并且在其它外部节点上提供外部输出光信号。

94. 发明申请

US20120189025A1 MONOLITHIC LASER SOURCE USING RING-RESONATOR REFLECTORS 审中-公开
标题翻译：单声道激光源使用环形谐振器反射器
公开(公告)号：US20120189025A1
公开(公告)日：2012-07-26
申请号：US12952838
申请日：2010-11-23
申请人： Xuezhe Zheng , Ashok V. Krishnamoorthy , John E. Cunningham
发明人： Xuezhe Zheng , Ashok V. Krishnamoorthy , John E. Cunningham
IPC分类号： H01S5/06
CPC分类号： H01S5/1071 , H01S5/021 , H01S5/02248 , H01S5/0261 , H01S5/0612 , H01S5/06255 , H01S5/1032 , H01S5/50
摘要： In a laser source, a first optical waveguide includes a gain medium, and a second optical waveguide includes a phase tuner which adjusts a phase value of the phase tuner to specify the wavelength of the laser source. Furthermore, the laser source includes a first ring resonator and a second ring resonator, which, respectively, are optically coupled to the first optical waveguide and the second optical waveguide at opposite ends of the laser source. In particular, coupling wavelengths of the first and second ring resonators may match a wavelength of the optical signal, thereby defining an optical resonance cavity in the laser source and selecting a laser mode of the laser source which is associated with the wavelength. Additionally, the laser source includes an optical amplifier that receives and amplifies the optical signal output from the optical resonance cavity.
摘要翻译：在激光源中，第一光波导包括增益介质，第二光波导包括相位调谐器，其调节相位调谐器的相位值以指定激光源的波长。此外，激光源包括第一环形谐振器和第二环形谐振器，其分别在激光源的相对端处光耦合到第一光波导和第二光波导。特别地，第一和第二环形谐振器的耦合波长可以匹配光信号的波长，从而在激光源中限定光学谐振腔并选择与波长相关联的激光源的激光模式。此外，激光源包括光放大器，其接收并放大从光谐振腔输出的光信号。

95. 发明申请

US20110235962A1 OPTICAL DEVICE WITH HIGH THERMAL TUNING EFFICIENCY 有权
标题翻译：具有高热调谐效率的光学器件
公开(公告)号：US20110235962A1
公开(公告)日：2011-09-29
申请号：US12730774
申请日：2010-03-24
申请人： Ivan Shubin , John E. Cunningham , Xuezhe Zheng , Guoliang Li , Ashok V. Krishnamoorthy
发明人： Ivan Shubin , John E. Cunningham , Xuezhe Zheng , Guoliang Li , Ashok V. Krishnamoorthy
IPC分类号： G02B6/12 , H01L21/02
CPC分类号： G02B6/12007 , G02F1/0147 , G02F1/025 , G02F1/3132
摘要： An optical device with high thermal tuning efficiency is described. This optical device may be implemented using a tri-layer structure (silicon-on-insulator technology), including: a substrate, a buried-oxide layer and a semiconductor layer. In particular, a thermally tunable optical waveguide may be defined in the semiconductor layer. Furthermore, a portion of the substrate under the buried-oxide layer and substantially beneath a location of the thermally tunable optical waveguide is fabricated so that a portion of the buried-oxide layer is exposed. In this way, the thermal impedance between the thermally tunable optical waveguide and an external environment is increased, and power consumption associated with thermal tuning of the optical waveguide is reduced.
摘要翻译：描述了具有高热调谐效率的光学装置。该光学器件可以使用三层结构（绝缘体上硅技术）来实现，包括：衬底，掩埋氧化物层和半导体层。特别地，热可调谐光波导可以限定在半导体层中。此外，制造掩埋氧化物层下面的基板的一部分并且基本上位于热可调谐光波导的位置下方，使得一部分掩埋氧化物层露出。以这种方式，热可调谐光波导和外部环境之间的热阻抗增加，并且降低与光波导的热调谐相关的功耗。

96. 发明申请

US20110170819A1 ELECTRO-OPTIC MODULATOR WITH INVERSE TAPERED WAVEGUIDES 有权
标题翻译：具有反转波形的电光调制器
公开(公告)号：US20110170819A1
公开(公告)日：2011-07-14
申请号：US12687633
申请日：2010-01-14
申请人： Xuezhe Zheng , Ashok V. Krishnamoorthy , John E. Cunningham
发明人： Xuezhe Zheng , Ashok V. Krishnamoorthy , John E. Cunningham
IPC分类号： G02F1/035 , G02B6/26
CPC分类号： G02B6/1228 , G02F1/2257
摘要： An integrated circuit that includes an optical waveguide to convey an optical signal via an optical mode in an on-chip optical waveguide is described. In this integrated circuit, a cross-sectional area of the optical waveguide may be tapered in proximity to an electro-optic modulator in the integrated circuit, such as a germanium electro-optic modulator or a quantum-well (QW) electro-optic modulator. In particular, the cross-sectional area may be tapered from a first diameter distal from the electro-optic modulator to a second diameter proximate to the electro-optic modulator. This so-called ‘inverse taper’ may increase the spatial extent or size of the optical mode, thereby allowing the optical signal to be optically coupled to or from the electro-optic modulator with low optical loss.
摘要翻译：描述了一种集成电路，其包括在片上光波导中经由光学模式传送光信号的光波导。在该集成电路中，光波导的横截面积可以在集成电路中的电光调制器附近逐渐变细，例如锗电光调制器或量子阱（QW）电光调制器。特别地，横截面积可以从远离电光调制器的第一直径逐渐变细到靠近电光调制器的第二直径。这种所谓的“倒锥度”可以增加光学模式的空间范围或尺寸，从而允许光学信号以低光损耗光学耦合到电光调制器。

97. 发明申请

US20110091157A1 THREE-DIMENSIONAL MACRO-CHIP INCLUDING OPTICAL INTERCONNECTS 有权
标题翻译：三维宏块包括光学互连
公开(公告)号：US20110091157A1
公开(公告)日：2011-04-21
申请号：US12581709
申请日：2009-10-19
申请人： Jin Yao , Xuezhe Zheng , Ashok V. Krishnamoorthy , John E. Cunningham
发明人： Jin Yao , Xuezhe Zheng , Ashok V. Krishnamoorthy , John E. Cunningham
IPC分类号： G02B6/26
CPC分类号： G02B6/13 , G02B6/12002
摘要： A multi-chip module (MCM), which includes a three-dimensional (3D) stack of chips that are coupled using optical interconnects, is described. In this MCM, disposed on a first surface of a middle chip in the 3D 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. Moreover, 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. Note that an optical path associated with the second direction passes through an opening in a substrate in the middle chip.
摘要翻译：描述了包括使用光学互连耦合的三维（3D）芯片堆叠的多芯片模块（MCM）。在该MCM中，设置在3D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，光波导和耦合到第三光耦合器的第二光耦合器，光波导。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。此外，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）或从第二方向到光波导。注意，与第二方向相关联的光路通过中间芯片中的衬底中的开口。

98. 发明申请

US20100247022A1 DUAL-LAYER THERMALLY TUNED OPTICAL DEVICE 有权
标题翻译：双层热调谐光学器件
公开(公告)号：US20100247022A1
公开(公告)日：2010-09-30
申请号：US12415886
申请日：2009-03-31
申请人： Guoliang Li , John E. Cunningham , Ashok V. Krishnamoorthy , Ivan Shubin , Xuezhe Zheng
发明人： Guoliang Li , John E. Cunningham , Ashok V. Krishnamoorthy , Ivan Shubin , Xuezhe Zheng
IPC分类号： G02B6/12 , G02F1/025
CPC分类号： G02B6/12007 , G02F1/0147 , G02F1/025 , G02F2203/15
摘要： Embodiments of an optical device, an array of optical devices, and a technique for fabricating the optical device or the array are described. This optical device is implemented using two semiconductor layers (such as silicon), one of which includes a heater and the other includes a thermally tunable optical waveguide. Spatially separating these two functions in the optical device results in more efficient heat transfer between the heater and the optical waveguide, reduced heat transfer to the surroundings, and reduced optical losses in the optical waveguide relative to existing silicon-based optical devices.
摘要翻译：描述了光学器件，光学器件阵列以及用于制造光学器件或阵列的技术的实施例。该光学器件使用两个半导体层（诸如硅）来实现，其中一个包括加热器，另一个包括热可调谐光波导。在光学器件中空间分离这两个功能导致加热器和光波导之间的更有效的热传递，减少的热传递到周围环境，并且相对于现有的硅基光学器件减少了光波导中的光学损耗。

99. 发明申请

US20100215309A1 ELECTRICAL CONTACTS ON TOP OF WAVEGUIDE STRUCTURES FOR EFFICIENT OPTICAL MODULATION IN SILICON PHOTONIC DEVICES 有权
标题翻译：用于在硅光电器件中进行有效光学调制的波形结构顶部的电气接触
公开(公告)号：US20100215309A1
公开(公告)日：2010-08-26
申请号：US12389608
申请日：2009-02-20
申请人： Ivan Shubin , Guoliang Li , John E. Cunningham , Ashok Krishnamoorthy , Xuezhe Zheng
发明人： Ivan Shubin , Guoliang Li , John E. Cunningham , Ashok Krishnamoorthy , Xuezhe Zheng
IPC分类号： G02F1/035 , H01L29/06
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。

100. 发明授权

US07676125B2 Method and apparatus to provide multi-channel bulk fiber optical power detection 有权
标题翻译：提供多通道体光纤光功率检测的方法和装置
公开(公告)号：US07676125B2
公开(公告)日：2010-03-09
申请号：US11764716
申请日：2007-06-18
申请人： Xuezhe Zheng , Shifu Yuan , Roger Helkey , Marduke Yousepfor , Charles Matthew Corbalis , Chandrasekhar Pusarla
发明人： Xuezhe Zheng , Shifu Yuan , Roger Helkey , Marduke Yousepfor , Charles Matthew Corbalis , Chandrasekhar Pusarla
IPC分类号： G02B6/26 , G02B6/42
CPC分类号： G02B6/3588 , G02B6/3512 , G02B6/3556 , G02B26/0833 , G02B26/10 , G02B26/12
摘要： An apparatus is described to provide multi-channel bulk optical power detection. The apparatus has a plurality of optical splitters coupled to respective fiber-optic lines of a plurality of fiber-optic lines. An optimal time-division multiplexer has an input coupled to the plurality of optical splitters. A photodetector is coupled to an output of the optical time-division multiplexer to provide bulk optical power detection. The optical time-division multiplexer includes a scanning mirror.
摘要翻译：描述了一种提供多通道体光功率检测的装置。该装置具有耦合到多个光纤线路的相应光纤线路的多个光分路器。最佳时分复用器具有耦合到多个光分路器的输入。光电检测器耦合到光时分多路复用器的输出以提供体光功率检测。光时分复用器包括扫描镜。

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