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公开(公告)号：US20110134432A1
公开(公告)日：2011-06-09
申请号：US13026049
申请日：2011-02-11
CPC分类号： G01D5/35303 , G01C19/721 , Y10T29/49826
摘要： An optical sensor includes at least one optical coupler and an optical waveguide in optical communication with the at least one optical coupler. The optical waveguide is configured to receive a first optical signal from the at least one optical coupler. The first optical signal has a group velocity and a phase velocity while propagating through at least a portion of the optical waveguide, the group velocity less than the phase velocity. An interference between the first optical signal and a second optical signal is affected by relative movement between the optical waveguide and the at least one optical coupler.
摘要翻译： 光学传感器包括至少一个光耦合器和与所述至少一个光耦合器光学通信的光波导。 光波导被配置为从至少一个光耦合器接收第一光信号。 第一光信号在传播通过光波导的至少一部分时具有组速度和相速度，组速度小于相速度。 第一光信号和第二光信号之间的干涉受到光波导与至少一个光耦合器之间的相对移动的影响。
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公开(公告)号：US20110121431A1
公开(公告)日：2011-05-26
申请号：US12948025
申请日：2010-11-17
申请人： Yi Cui , Jia Zhu , Ching-Mei Hsu , Stephen T. Connor , Zongfu Yu , Shanhui Fan , George Burkhard
发明人： Yi Cui , Jia Zhu , Ching-Mei Hsu , Stephen T. Connor , Zongfu Yu , Shanhui Fan , George Burkhard
IPC分类号： H01L29/06 , H01L21/3065
CPC分类号： H01L29/0665 , B82Y10/00 , H01L21/3086 , H01L31/035227 , H01L31/03921 , H01L31/202 , Y02E10/50 , Y02P70/521
摘要： A method for forming a substrate comprising nanometer-scale pillars or cones that project from the surface of the substrate is disclosed. The method enables control over physical characteristics of the projections including diameter, sidewall angle, and tip shape. The method further enables control over the arrangement of the projections including characteristics such as center-to-center spacing and separation distance.
摘要翻译： 公开了一种用于形成包括从衬底的表面突出的纳米级柱或锥体的衬底的方法。 该方法能够控制突起的物理特性，包括直径，侧壁角和尖端形状。 该方法还能够控制突起的布置，包括中心间距和间隔距离等特征。
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公开(公告)号：US20090175584A1
公开(公告)日：2009-07-09
申请号：US12356510
申请日：2009-01-20
申请人： Hyang Kyun Kim , Shanhui Fan , Gordon S. Kino , Jonghwa Shin , Michel J.F. Digonnet , Vinayak Dangui
发明人： Hyang Kyun Kim , Shanhui Fan , Gordon S. Kino , Jonghwa Shin , Michel J.F. Digonnet , Vinayak Dangui
IPC分类号： G02B6/032
CPC分类号： G02B6/02328 , G02B6/02338 , G02B6/02347
摘要： An optical fiber includes a cladding with a material having a first refractive index and a pattern of regions formed therein. Each of the regions has a second refractive index lower than the first refractive index. The optical fiber further includes a core region and a core ring having an inner perimeter, an outer perimeter, and a thickness between the inner perimeter and the outer perimeter. The thickness is sized to reduce the number of ring surface modes supported by the core ring.
摘要翻译： 光纤包括具有第一折射率的材料和其中形成的区域的图案的包层。 每个区域具有低于第一折射率的第二折射率。 光纤还包括芯区域和芯环，其具有内周边，外周边和内周边与外周边之间的厚度。 厚度的大小可以减小由芯环支撑的环表面模式的数量。
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公开(公告)号：US20080069561A1
公开(公告)日：2008-03-20
申请号：US11940199
申请日：2007-11-14
申请人： Joseph Kahn , Mark Horowitz , Olav Solgaard , Shanhui Fan
发明人： Joseph Kahn , Mark Horowitz , Olav Solgaard , Shanhui Fan
IPC分类号： H04K3/00
CPC分类号： G02B6/4206 , G02B6/2861
摘要： Optical signals are passed in an optical medium using an approach that facilitates the mitigation of interference. According to an example embodiment, a filtering-type approach is used with an optical signal conveyed in an optical fiber, such as a multimode fiber (MMF) or a multimode waveguide. Adaptive spatial domain signal processing, responsive to a feedback signal indicative of data conveyed in the multimode waveguide, is used to mitigate interference in optical signals conveyed in the multimode waveguide.
摘要翻译： 光信号通过使用有助于减轻干扰的方法在光学介质中传播。 根据示例实施例，滤波型方法与诸如多模光纤（MMF）或多模波导之类的光纤中传送的光信号一起使用。 响应于指示在多模波导中传送的数据的反馈信号的自适应空间域信号处理被用于减轻在多模波导中传送的光信号中的干扰。
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25.发明申请公开(公告)号：US20060115212A1
公开(公告)日：2006-06-01
申请号：US11001492
申请日：2004-11-30
申请人： Mehmet Yanik , Shanhui Fan
发明人： Mehmet Yanik , Shanhui Fan
IPC分类号： G02B6/26
CPC分类号： B82Y20/00 , G02B6/1225
摘要： Light pulses can be stopped and stored coherently, with an all-optical process that involves an adiabatic and reversible pulse bandwidth compression occurring entirely in the optical domain. Such a process overcomes the fundamental bandwidth-delay constraint in optics, and can generate arbitrarily small group velocities for light pulses with a given bandwidth, without the use of any coherent or resonant light-matter interactions. This is accomplished only by small refractive index modulations performed at moderate speeds and has applications ranging from quantum communications and computing to coherent all-optical memory devices. A complete time reversal and/or temporal/spectral compression and expansion operation on any electromagnetic field is accomplished using only small refractive index modulations and linear optical elements. This process does not require any nonlinear multi-photon processes such as four-wave mixing and thus can be implemented using on-chip tunable microcavity complexes in photonic crystals. The tuning process requires only small refractive index modulations, and moderate modulation speeds without requiring any high-speed electronic sampling.
摘要翻译： 光脉冲可以被停止并相干地存储，其全光学过程涉及完全在光学域中发生的绝热和可逆的脉冲带宽压缩。 这种过程克服了光学中的基本带宽延迟约束，并且可以为具有给定带宽的光脉冲产生任意小的组速度，而不使用任何相干或共振的光物质相互作用。 这仅通过在中等速度下执行的小折射率调制来实现，并且具有从量子通信和计算到相干全光存储器件的应用。 在任何电磁场上的完全时间反转和/或时间/频谱压缩和扩展操作仅使用小的折射率调制和线性光学元件来实现。 该过程不需要诸如四波混频的任何非线性多光子过程，因此可以使用光子晶体中的片上可调谐微腔复合体来实现。 调谐过程只需要较小的折射率调制和适度的调制速度，而不需要任何高速电子采样。
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公开(公告)号：US06917431B2
公开(公告)日：2005-07-12
申请号：US10146430
申请日：2002-05-15
CPC分类号： G02B6/1225 , B82Y20/00 , G02F1/225 , G02F2202/32 , H01S5/0265 , H01S5/105
摘要： A photonic crystal optical switch having a periodic dielectric structure including at least one input waveguide. First and second waveguide arms branch from the input waveguide in which the relative optical path lengths of electromagnetic radiation within the arms are controlled by stimuli. At least one output waveguide that combines the electromagnetic radiation propagating within the first and second waveguide arms.
摘要翻译： 一种具有包括至少一个输入波导的周期性电介质结构的光子晶体光开关。 第一和第二波导臂从输入波导分支，其中臂内的电磁辐射的相对光程长度受到刺激的控制。 至少一个输出波导，其组合在第一和第二波导臂内传播的电磁辐射。
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27.发明申请Method for configuring air-core photonic-bandgap fibers free of surface modes 有权用于配置不含表面模式的空芯光子带隙光纤的方法公开(公告)号：US20050118420A1
公开(公告)日：2005-06-02
申请号：US10938755
申请日：2004-09-10
申请人： Hyang Kim , Shanhui Fan , Gordon Kino , Jonghwa Shin , Michel Digonnet
发明人： Hyang Kim , Shanhui Fan , Gordon Kino , Jonghwa Shin , Michel Digonnet
IPC分类号： A61K31/135 , A61K31/137 , A61K31/4168 , A61K31/498 , A61K31/506 , A61K31/517 , A61K45/06 , D02G3/00
CPC分类号： G02B6/02328 , A61K31/135 , A61K31/137 , A61K31/4168 , A61K31/498 , A61K31/506 , A61K31/517 , A61K45/06 , G02B6/02338 , Y10T428/2913 , Y10T428/2929 , A61K2300/00
摘要： Coupling of core modes to surface modes in an air-core photonic-bandgap fiber (PBF) can cause large propagation losses. Computer simulations analyze the relationship between the geometry and the presence of surface modes in PBFs having a triangular hole pattern and identify ranges of core characteristic dimensions (e.g., radii) for which the fiber supports no surface modes (i.e., only core modes are present) over the entire wavelength range of the bandgap. In particular, for a hole spacing Λ and a hole radius ρ=0.47Λ, the core supports a single mode and supports no surface modes for core radii between about 0.7Λ and about 1.05Λ, which suggests that such fibers should exhibit a very low propagation loss. The existence of surface modes can be predicted simply and expediently by studying either the bulk modes alone or the geometry of the fiber without requiring a full analysis of the defect modes.
摘要翻译： 核心模式与空芯光子带隙光纤（PBF）中的表面模式的耦合可能导致较大的传播损耗。 计算机模拟分析了具有三角孔图案的PBF中的几何形状和表面模式的存在之间的关系，并且识别纤维不支持表面模式（即，仅存在核心模式）的核心特征尺寸（例如，半径）的范围， 在带隙的整个波长范围内。 特别地，对于孔间距λ和孔半径rho = 0.47Lambda，芯支撑单模并且不支持在约0.7λ和约1.05λ之间的核心半径的表面模式，这表明这种光纤应呈现非常低的 传播损失。 表面模式的存在可以通过单独研究单独的体模式或光纤的几何形状而不需要对缺陷模式进行全面分析来简单和方便地预测。
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公开(公告)号：US06819691B2
公开(公告)日：2004-11-16
申请号：US10059791
申请日：2002-01-28
申请人： Shanhui Fan
发明人： Shanhui Fan
IPC分类号： H01S310
CPC分类号： B82Y20/00 , G02B6/1225 , G02F1/011 , G02F2201/307 , G02F2203/055 , G02F2203/15
摘要： We disclose a new structure that allows the creation of sharp and asymmetric lineshapes in optical microcavity systems. In this structure, the response function can vary from 0% to 100% in a frequency range that is narrower than the full width of the resonance itself. Therefore, an optical switch, based upon this structure, may require far less frequency shift to operate, compared with conventional microcavity-based structures. This method may also be used to improve the sensitivity of optical sensors based upon microcavity structures.
摘要翻译： 我们公开了一种新的结构，允许在光学微腔系统中创建锐利和不对称的线条形状。 在该结构中，响应函数可以在比共振本身的全宽窄的频率范围内从0％变化到100％。 因此，与传统的基于微腔的结构相比，基于这种结构的光学开关可能需要更少的频率移动来进行操作。 该方法也可用于提高基于微腔结构的光学传感器的灵敏度。
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公开(公告)号：US06512242B1
公开(公告)日：2003-01-28
申请号：US09228147
申请日：1999-01-11
IPC分类号： H01L2906
CPC分类号： B82Y10/00 , H01L29/125 , H01L29/127 , H01L29/66977 , Y10S977/712 , Y10S977/759 , Y10S977/762 , Y10S977/774 , Y10S977/782
摘要： An electronic transportor that allows for the resonant tunneling of electrons between guided states, such as those found in a quantum wire or a line defect in a solid, and localized states, such as those found in a quantum dot or a point defect in a solid, using lateral coupling. In some embodiments, the transporter allows electrons of different energies to be transported to different ports of associated waveguides. In other embodiments, the transportor allows electrons of different energies to be transported at different phases.
摘要翻译： 允许在引导状态之间的电子的谐振隧穿的电子传输器，例如在量子线中发现的或固体中的线缺陷，以及局部状态，例如在量子点中发现的那些或固体中的点缺陷 ，使用横向耦合。 在一些实施方案中，转运体允许将不同能量的电子输送到相关波导的不同端口。 在其他实施例中，传送器允许不同能量的电子以不同的相位传输。
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30.发明授权
公开(公告)号：US5440421A
公开(公告)日：1995-08-08
申请号：US240916
申请日：1994-05-10
CPC分类号： H01Q15/006 , B82Y20/00 , G02B6/1225
摘要： A periodic dielectric structure and method of fabricating same, the structure having a three-dimensional photonic bandgap. The structure includes a plurality of layers, each layer having a stratum of a first material having a first dielectric constant and a plurality of parallel grooves along a first axis lying in the plane of the layer, the grooves including a second material having a second dielectric constant; and a plurality of parallel channels formed through the plurality of layers in a second axis orthogonal to the plane of the layers, the channels being adapted to comprise a third material having a third dielectric constant, thereby resulting in the structure having three-dimensional periodicity. In preferred embodiments, the second and third materials include air.
摘要翻译： 周期性电介质结构及其制造方法，该结构具有三维光子带隙。 该结构包括多个层，每个层具有第一材料的层，具有第一介电常数的层和沿着位于层的平面中的第一轴的多个平行凹槽，所述凹槽包括具有第二介电层的第二材料 不变; 以及在与所述层的平面垂直的第二轴上穿过所述多个层形成的多个平行通道，所述通道适于包括具有第三介电常数的第三材料，从而导致所述结构具有三维周期性。 在优选实施例中，第二和第三材料包括空气。
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