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11.发明授权
公开(公告)号：US6101300A
公开(公告)日：2000-08-08
申请号：US80037
申请日：1998-05-15
CPC分类号： G02F1/3132 , B82Y20/00 , G02B6/12007 , G02B6/1225 , H04Q3/00 , G02F1/17 , G02F2201/066 , G02F2202/32 , G02F2203/15 , G02F2203/585
摘要： A highly efficient channel drop filter. The filter employs a coupling element including a resonator-system between two waveguides, which contains at least two resonant modes. The resonator-system includes one or more interacting resonant cavities which in addition to being coupled to the waveguides, can also be coupled directly among themselves and indirectly among themselves via the waveguides. Each component of the coupling element can be configured or adjusted individually. The geometry and/or dielectric constant/refractive index of the resonator-system are configured so that the frequencies and decay rates of the resonant modes are made to be substantially the same. The filter can achieve 100% signal transfer between the waveguides at certain frequencies, while completely prohibiting signal transfer at other frequencies. In exemplary embodiments, the filter is configured with photonic crystals. In accordance with alternative embodiments of the invention, the filter is configured as an absorption induced on/off switch and modulator. The switching action is achieved with either electrical or optical absorption.
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公开(公告)号：US5990850A
公开(公告)日：1999-11-23
申请号：US706542
申请日：1996-09-05
申请人： Elliott R. Brown , John D. Joannopoulos , Shanhui Fan , Pierre R. Villeneuve , Oliver B. McMahon
发明人： Elliott R. Brown , John D. Joannopoulos , Shanhui Fan , Pierre R. Villeneuve , Oliver B. McMahon
CPC分类号： H01Q15/006 , B82Y20/00 , G02B5/206 , G02B6/1225
摘要： A metallodielectric photonic crystal including a plurality of elements, each having a non-dielectric component, arranged with respect to each other in a three-dimensionally periodic lattice. The non-dielectric components being spatially isolated from one another, the lattice exhibiting a band gap in the spectrum of electromagnetic radiation modes propagating through said lattice. A support structure positions the elements in the three-dimensionally periodic lattice. In an exemplary embodiment, the elements are metallic spheres arranged within dielectric material. The three-dimensionally periodic lattice can include a face-centered-cubic lattice which exhibits a unidirectional photonic band gap, or a diamond lattice which exhibits an omnidirectional photonic band gap. The diamond lattice structure includes a gap width to midgap frequency ratio which can exceed 60%.
摘要翻译： 一种金属电介质光子晶体，其包括多个元件，每个元件具有非电介质成分，以三维周期性晶格相对于彼此布置。 非介电成分彼此空间隔离，晶格在通过所述晶格传播的电磁辐射模式的光谱中呈现带隙。 支撑结构将元件定位在三维周期性晶格中。 在示例性实施例中，元件是布置在电介质材料内的金属球体。 三维周期性晶格可以包括呈现单向光子带隙的面心立方晶格，或者呈现全向光子带隙的金刚石晶格。 金刚石晶格结构包括间隙宽度与中间频率比可超过60％。
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公开(公告)号：US5955749A
公开(公告)日：1999-09-21
申请号：US758955
申请日：1996-12-02
CPC分类号： H01L33/24 , B82Y20/00 , G02B6/1225 , H01L33/08
摘要： A light emitting device comprising a substrate and a dielectric structure having at least a two-dimensionally periodic variation of dielectric constant which exhibits a spectrum of electromagnetic modes including guided modes of frequencies below a predetermined frequency cutoff and radiation modes of frequencies above and below said predetermined frequency cutoff, the two-dimensionally periodic variation of dielectric constant of the dielectric structure introducing a band gap between the guided modes. A radiation source, such as a quantum well, is associated with said structure, and generates electromagnetic radiation which couples to the radiation modes resulting in radiation extraction from the structure. The band gap allows the radiation to couple to radiation modes rather than to guided modes resulting in radiation extraction from the structure. The structure can be fabricated such that a radiation reflector is disposed between the structure and the substrate.
摘要翻译： 一种发光器件，包括具有至少二维周期性介电常数变化的介质结构和电介质结构，所述介电常数表现出包括低于预定频率截止频率的导频模式的电磁模式谱，以及高于和低于所述预定频率的辐射模式 频率截止，介电结构的介电常数的二维周期性变化引入引导模式之间的带隙。 诸如量子阱的辐射源与所述结构相关联，并且产生耦合到辐射模式的电磁辐射，从而导致来自结构的辐射提取。 带隙允许辐射耦合到辐射模式，而不是引导模式，从而导致从结构的辐射提取。 该结构可以被制造成使得辐射反射器设置在结构和衬底之间。
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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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公开(公告)号：US07260287B2
公开(公告)日：2007-08-21
申请号：US10916837
申请日：2004-08-12
申请人： Solomon Assefa , Reginald E. Bryant , Alexei A. Erchak , Shanhui Fan , Erich P. Ippen , John D. Joannopoulos , Steven G. Johnson , Leslie A. Kolodziejski , Elefterios Lidorikis , Gale S. Petrich , Michelle L. Povinelli
发明人： Solomon Assefa , Reginald E. Bryant , Alexei A. Erchak , Shanhui Fan , Erich P. Ippen , John D. Joannopoulos , Steven G. Johnson , Leslie A. Kolodziejski , Elefterios Lidorikis , Gale S. Petrich , Michelle L. Povinelli
CPC分类号： B82Y20/00 , G02B6/122 , G02B6/3502 , G02B6/355 , G02B6/3566 , G02B6/357 , G02B6/3592 , G02B6/3596 , G02B2006/12078 , G02B2006/12097 , G02B2006/12145 , G02B2006/12147
摘要： A nano-electromechanical optical switch includes an input optical waveguide that is provided with an optical signal. At least two output optical waveguides are coupled to the input optical waveguide. The deflection of the input optical waveguide aligns with one of either of the two output optical waveguides so as to allow transmission of the optical signal to one of either of the two output optical waveguides.
摘要翻译： 纳米机电光开关包括具有光信号的输入光波导。 至少两个输出光波导耦合到输入光波导。 输入光波导的偏转与两个输出光波导中的任一个波导对准，以便允许将光信号传输到两个输出光波导中的任一个中。
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公开(公告)号：US20050147344A1
公开(公告)日：2005-07-07
申请号：US10916837
申请日：2004-08-12
申请人： Solomon Assefa , Reginald Bryant , Alexei Erchak , Shanhui Fan , Erich Ippen , John Joannopoulos , Steven Johnson , Leslie Kolodziejski , Elefterios Lidorikis , Gale Petrich , Michelle Povinelli
发明人： Solomon Assefa , Reginald Bryant , Alexei Erchak , Shanhui Fan , Erich Ippen , John Joannopoulos , Steven Johnson , Leslie Kolodziejski , Elefterios Lidorikis , Gale Petrich , Michelle Povinelli
CPC分类号： B82Y20/00 , G02B6/122 , G02B6/3502 , G02B6/355 , G02B6/3566 , G02B6/357 , G02B6/3592 , G02B6/3596 , G02B2006/12078 , G02B2006/12097 , G02B2006/12145 , G02B2006/12147
摘要： A nano-electromechanical optical switch includes an input optical waveguide that is provided with an optical signal. At least two output optical waveguides are coupled to the input optical waveguide. The deflection of the input optical waveguide aligns with one of either of the two output optical waveguides so as to allow transmission of the optical signal to one of either of the two output optical waveguides.
摘要翻译： 纳米机电光开关包括具有光信号的输入光波导。 至少两个输出光波导耦合到输入光波导。 输入光波导的偏转与两个输出光波导中的任一个波导对准，以便允许将光信号传输到两个输出光波导中的任一个中。
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公开(公告)号：US07190853B2
公开(公告)日：2007-03-13
申请号：US10178965
申请日：2002-06-25
IPC分类号： G02B6/26
CPC分类号： H04B10/2519
摘要： A system for dispersion compensation is provided including a plurality of optical cavities with each including a specific resonant frequency and resonant linewidth. At least one coupling element interconnects the optical cavities. The at least one coupling element defines the coupling strength between the cavities. The optical cavities are interconnected with the at least one coupled element that forms a multi-cavity structure. The multi-cavity structure generates appropriate dispersion properties for dispersion compensation purposes.
摘要翻译： 提供了一种用于色散补偿的系统，包括多个光腔，每个具有特定的谐振频率和谐振线宽。 至少一个耦合元件互连光腔。 所述至少一个联接元件限定所述空腔之间的耦合强度。 光学空腔与形成多腔结构的至少一个耦合元件互连。 多腔结构为色散补偿目的产生适当的色散特性。
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公开(公告)号：US06903873B1
公开(公告)日：2005-06-07
申请号：US09634099
申请日：2000-08-08
申请人： John D. Joannopoulos , Shanhui Fan , Joshua N. Winn , Yoel Fink
发明人： John D. Joannopoulos , Shanhui Fan , Joshua N. Winn , Yoel Fink
CPC分类号： G02B27/0012 , B82Y20/00 , G02B5/0825 , G02B6/122 , G02B6/1225 , G02B2006/12104
摘要： A reflector, a method of producing same and a method of creating high omnidirectional reflection for a predetermined range of frequencies of incident electromagnetic energy for any angle of incidence and any polarization. The reflector includes a structure with a surface and a refractive index variation along the direction perpendicular to the surface while remaining nearly uniform along the surface. The structure is configured such that i) a range of frequencies exists defining a photonic band gap for electromagnetic energy incident along the perpendicular direction of said surface, ii) a range of frequencies exists defining a photonic band gap for electromagnetic energy incident along a direction approximately 90° from the perpendicular direction of said surface, and iii) a range of frequencies exists which is common to both of said photonic band gaps. In an exemplary embodiment, the reflector is configured as a photonic crystal.
摘要翻译： 反射器，其制造方法以及用于针对任何入射角和任何极化的入射电磁能的预定频率范围产生高全向反射的方法。 反射器包括具有沿着垂直于表面的方向的表面和折射率变化的结构，同时沿表面保持几乎均匀的结构。 该结构被配置为使得i）存在一定范围的频率，其限定沿着所述表面的垂直方向入射的电磁能的光子带隙，ii）存在限定沿着近似方向入射的电磁能的光子带隙的频率范围 与所述表面的垂直方向成90°，以及iii）存在对所述光子带隙两者共同的频率范围。 在示例性实施例中，反射器被配置为光子晶体。
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公开(公告)号：US6130780A
公开(公告)日：2000-10-10
申请号：US253379
申请日：1999-02-19
申请人： John D. Joannopoulos , Shanhui Fan , Joshua N. Winn , Yoel Fink
发明人： John D. Joannopoulos , Shanhui Fan , Joshua N. Winn , Yoel Fink
CPC分类号： G02B27/0012 , B82Y20/00 , G02B5/0825 , G02B6/122 , G02B6/1225 , G02B2006/12104
摘要： A reflector, a method of producing same and a method of creating high omnidirectional reflection for a predetermined range of frequencies of incident electromagnetic energy for any angle of incidence and any polarization. The reflector includes a structure with a surface and a refractive index variation along the direction perpendicular to the surface while remaining nearly uniform along the surface. The structure is configured such that i) a range of frequencies exists defining a photonic band gap for electromagnetic energy incident along the perpendicular direction of said surface, ii) a range of frequencies exists defining a photonic band gap for electromagnetic energy incident along a direction approximately 90.degree. from the perpendicular direction of said surface, and iii) a range of frequencies exists which is common to both of said photonic band gaps. In an exemplary embodiment, the reflector is configured as a photonic crystal.
摘要翻译： 反射器，其制造方法以及用于针对任何入射角和任何极化的入射电磁能的预定频率范围产生高全向反射的方法。 反射器包括具有沿着垂直于表面的方向的表面和折射率变化的结构，同时沿表面保持几乎均匀的结构。 该结构被配置为使得i）存在一定范围的频率，其限定沿着所述表面的垂直方向入射的电磁能的光子带隙，ii）存在限定沿着近似方向入射的电磁能的光子带隙的频率范围 90°，并且iii）存在对于所述光子带隙两者共同的频率范围。 在示例性实施例中，反射器被配置为光子晶体。
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20.发明授权Input light coupler using a pattern of dielectric contrast distributed in at least two dimensions 有权使用至少二维分布的介电对比度图案的输入光耦合器公开(公告)号：US06574383B1
公开(公告)日：2003-06-03
申请号：US09845811
申请日：2001-04-30
申请人： Alexei A. Erchak , Shanhui Fan , Erich P. Ippen , John D. Joannopoulos , Leslie A. Kolodziejski , Gale S. Petrich , Daniel J. Ripin
发明人： Alexei A. Erchak , Shanhui Fan , Erich P. Ippen , John D. Joannopoulos , Leslie A. Kolodziejski , Gale S. Petrich , Daniel J. Ripin
IPC分类号： G02B626
CPC分类号： B82Y20/00 , G02B6/1225
摘要： An input light-coupling device comprising a dielectric layer containing a pattern of dielectric contrast distributed in at least two dimensions. The pattern of dielectric contrast, which may or may not be periodic, is designed to facilitate coupling to the dielectric layer of electromagnetic radiation. The electromagnetic radiation may be propagating within a surrounding medium of lower dielectric constant than that of said dielectric layer, input at directions including normal incidence from which light cannot typically couple to the dielectric layer without the presence of the pattern of dielectric contrast. The input light may constitute an optical signal propagating in an optical fiber or in free space. Light that is in-coupled may be directed in as many directions as dictated by the symmetry of the pattern of dielectric contrast. The dielectric layer may contain output waveguides surrounding the input coupling structure. The light coupling structure may be fabricated in a dielectric layer separated from a high-dielectric substrate by a low-dielectric layer to avoid losses of the input signal to the substrate. A mirror comprising either a reflective material or alternating layers of high and low dielectric material may be disposed between the low-dielectric layer and the substrate to enhance the total input coupling to the dielectric layer containing the input coupling structure.
摘要翻译： 一种输入光耦合装置，包括包含至少二维分布的介电对比度图案的电介质层。 电介质对比度图案可以是或可以不是周期性的，以便于耦合到电磁辐射的电介质层。 电磁辐射可以在比所述介电层的介电常数低的周围介质中传播，在包括法向入射的方向上输入，光不能典型地耦合到电介质层而不存在介电对比度图案。 输入光可以构成在光纤中或在自由空间中传播的光信号。 耦合的光可以沿着介电对比度图案的对称性所指示的方向指向。 电介质层可以包含围绕输入耦合结构的输出波导。 光耦合结构可以通过低电介质层在与高电介质衬底分离的电介质层中制造，以避免输入到衬底的信号的损失。 包括反射材料或高介电材料和低介电材料的交替层的反射镜可以设置在低介电层和衬底之间，以增强与包含输入耦合结构的介电层的总输入耦合。
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