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1. 发明申请

WO2007031771A1 OPTOELECTRONIC DEVICE 审中-公开
标题翻译：光电器件
公开(公告)号：WO2007031771A1
公开(公告)日：2007-03-22
申请号：PCT/GB2006/003436
申请日：2006-09-15
申请人： UNIVERSITY OF SURREY , REED, Graham , THOMPSON, David, John
发明人： REED, Graham , THOMPSON, David, John
IPC分类号： G02F1/025 , G02F1/313
CPC分类号： G02F1/3138 , G02F1/025 , G02F1/315 , G02F2001/0152 , G02F2201/063
摘要： An optical switch (50) has a Silicon On Insulator (SOI) body (51) incorporating two optical waveguides (52, 53). The waveguides (52, 53) are arranged so that they cross one another to form a crossover (55). Insulating barriers (56, 57) are provided in the SOI body (51) that extend (vertically) from the upper surface (61) of the SOI body to the SiO 2 base layer (54). Importantly, a portion of at least one of the barriers (57) defines a boundary in the crossover (55). Light propagating along an input path of the first waveguide (52) can be reflected into the second waveguide (53) at the boundary in the crossover (55) when the refractive index of the crossover (55) differs on either side of the boundary. Electrodes (59, 60, 64) are provided on the upper surface (61) of the SOI body (51), in contact with n-type doped regions (62, 63) and a p-type doped region (65) forming a p-i-n diode through the crossover (55) on one side of the boundary. This allows free carriers to be injected into the crossover (55) to alter the refractive index of the crossover (55) on that side of the boundary, so allowing the amount of reflection at the boundary to be controlled. As the boundary is defined by the insulating barrier (57), free carriers are well contained at the boundary, resulting in a sharp change in refractive index at the boundary and good quality reflection characteristics in the switch (50).
摘要翻译：光开关（50）具有包含两个光波导（52,53）的绝缘体上硅（SOI）体（51）。波导（52,53）被布置成使得它们彼此交叉以形成交叉（55）。在从SOI体的上表面（61）向SiO 2基底层（54）延伸（垂直）的SOI体（51）中设置有绝缘阻挡层（56,57）。重要的是，至少一个障碍物（57）的一部分限定了交叉（55）中的边界。当交叉（55）的折射率在边界的任一侧不同时，沿着第一波导（52）的输入路径传播的光可以在交叉（55）的边界处反射到第二波导（53）中。电极（59,60,64）设置在SOI体（51）的上表面（61）上，与n型掺杂区域（62,63）和p型掺杂区域（65）接触，形成引脚二极管通过交叉（55）在边界的一侧。这允许自由载流子注入到交叉（55）中以改变边界那侧上的交叉（55）的折射率，从而允许控制边界处的反射量。由于边界由绝缘屏障（57）限定，边界处的自由载流子很好地被包含在边界处，导致开关（50）中的折射率急剧变化和良好的反射特性。

2. 发明申请

WO2008032023A1 OPTOELECTRONIC DEVICE 审中-公开
标题翻译：光电器件
公开(公告)号：WO2008032023A1
公开(公告)日：2008-03-20
申请号：PCT/GB2007/003376
申请日：2007-09-10
申请人： UNIVERSITY OF SURREY , MCMASTER UNIVERSITY , KNIGHT, Andrew , REED, Graham , THOMSON, David, John
发明人： KNIGHT, Andrew , REED, Graham , THOMSON, David, John
IPC分类号： G02F1/313 , G02F1/315
CPC分类号： G02F1/3138 , G02F1/025
摘要： An optical switch (50) has a Silicon On Insulator (SOI) body (51) incorporating two optical waveguides (52, 53). The waveguides (52, 53) are arranged so that they cross one another to form a crossover (55). A carrier restrictive region (56) is provided in the Si layer of the SOI body (51), passing through the crossover (55). The carrier restrictive region (56) comprises a region of the Si layer in which Si ions have been implanted at sufficient energy and dose to cause at least partial amorphisation. The carrier restrictive region (56) is also doped with an n-type dopant, whereas the background doping of the SOI body (51) is p-type. Movement of free carriers between the SOI body (51) and the carrier restrictive region (56) is therefore restricted and part of one side (57) of the carrier restrictive region (56) defines a boundary in the crossover (55). Electrodes (59, 60, 64) are provided on the upper surface (61) of the SOI body (51), in contact with n-type doped regions (62, 63) and a p-type doped region (65) forming a p-i-n diode through the crossover (55) on one side of the boundary. This allows free carriers to be injected into the crossover (55) to alter the refractive index of the crossover (55) on that side of the boundary. Light propagating along an input path of the first waveguide (52) can be controllably reflected into the second waveguide (53) at the boundary in the crossover (55) when the refractive index of the crossover (55) differs on either side of the boundary.
摘要翻译：光开关（50）具有包含两个光波导（52,53）的绝缘体上硅（SOI）体（51）。波导（52,53）被布置成使得它们彼此交叉以形成交叉（55）。载体限制区（56）设置在SOI体（51）的Si层中，穿过交叉（55）。载流子限制区域（56）包括其中以足够的能量和剂量植入Si离子的Si层的区域以引起至少部分非晶化。载流子限制区域（56）也掺杂有n型掺杂剂，而SOI体（51）的背景掺杂是p型。因此，SOI体（51）与载体限制区域（56）之间的自由载流子的运动受到限制，并且载体限制区域（56）的一侧（57）的一部分在交叉（55）中限定边界。电极（59,60,64）设置在SOI体（51）的上表面（61）上，与n型掺杂区域（62,63）和p型掺杂区域（65）接触，形成引脚二极管通过交叉（55）在边界的一侧。这允许将自由载流子注入到交叉（55）中以改变边界那侧上的交叉（55）的折射率。当交叉（55）的折射率在边界的任一侧不同时，在交叉（55）的边界处，沿着第一波导（52）的输入路径传播的光可以被可控地反射到第二波导（53）。

3. 发明申请

WO2012097982A1 OPTICAL FILTER 审中-公开
标题翻译：光学过滤器
公开(公告)号：WO2012097982A1
公开(公告)日：2012-07-26
申请号：PCT/EP2012/000215
申请日：2012-01-18
申请人： UNIVERSITY OF SURREY , HU, Yufang , REED, Graham
发明人： HU, Yufang , REED, Graham
IPC分类号： G02B6/28 , G02B6/293
CPC分类号： G02B6/12007 , G02B6/2813 , G02B6/29344
摘要： The present invention provides an optical filter, for use in a range of devices, in which two or more multimode waveguides are combined into a single filter. The filter can be designed to achieve many different transmission characteristics by adapting the physical characteristics (such as length, width, or height) and/or number of multimode waveguides.
摘要翻译：本发明提供一种用于一系列器件的滤光器，其中两个或多个多模波导组合成单个滤光器。滤波器可以设计成通过适应多模波导的物理特性（例如长度，宽度或高度）和/或数量来实现许多不同的传输特性。

4. 发明申请

WO2011101632A1 ELECTRO-OPTIC DEVICE 审中-公开
标题翻译：电光设备
公开(公告)号：WO2011101632A1
公开(公告)日：2011-08-25
申请号：PCT/GB2011/000216
申请日：2011-02-17
申请人： UNIVERSITY OF SURREY , GARDES, Frederic , THOMSON, David , REED, Graham
发明人： GARDES, Frederic , THOMSON, David , REED, Graham
IPC分类号： G02F1/025
CPC分类号： H01L33/58 , G02F1/025 , G02F1/218 , G02F1/29 , G02F1/35 , G02F2001/0152 , G02F2001/212
摘要： An electro - optic device (110), comprising a layer of light - carrying material; and a rib (121), projecting from the layer of light - carrying material, for guiding optical signals propagating through the device (110). The layer of light - carrying material comprises a first doped region (118) of a first type extending into the rib, and a second doped region (121) of a second, different type extending into the rib such that a pn junction is formed within the rib (121). The pn junction extends substantially parallel to at least two contiguous faces of the rib (121), resulting in a more efficient device. In addition, a self-aligned fabrication process can be used in order to simplify the fabrication process and increase reliability and yield.
摘要翻译：一种电光器件（110），包括一层轻载材料; 以及从所述载光材料层突出的用于引导通过所述装置（110）传播的光信号的肋（121）。载光材料层包括延伸到肋中的第一类型的第一掺杂区域（118）和延伸到肋中的第二不同类型的第二掺杂区域（121），使得在其内部形成pn结肋（121）。 pn结基本上平行于肋（121）的至少两个邻接面延伸，导致更有效的装置。此外，可以使用自对准制造工艺以简化制造工艺并提高可靠性和产率。

5. 发明申请

WO2004057395A1 DUAL GRATING ASSISTED OPTICAL COUPLER 审中-公开
标题翻译：双光学辅助光耦合器
公开(公告)号：WO2004057395A1
公开(公告)日：2004-07-08
申请号：PCT/GB2003/005634
申请日：2003-12-23
申请人： THE UNIVERSITY OF SURREY , REED, Graham , MASANOVIC, Goran , PASSARO, Vittorio
发明人： REED, Graham , MASANOVIC, Goran , PASSARO, Vittorio
IPC分类号： G02B6/34
CPC分类号： G02B6/125 , G02B6/12002 , G02B6/12004 , G02B6/124 , G02B2006/12147
摘要： An optical coupler comprises an input waveguide, an intermediate waveguide, an output waveguide, a first grating situated between the input and intermediate waveguides, and a second grating situated between the intermediate and output waveguides such that, in use, light propagating in the input waveguide is coupled into the intermediate waveguide with the assistance of the first grating, and thence is coupled into the output waveguide with the assistance of the second grating. The coupler is a directional coupler, in particular a dual grating-assisted directional coupler, and may be used to couple light between an optical fibre and an integrated semiconductor device, or between dissimilar waveguides.
摘要翻译：光耦合器包括输入波导，中间波导，输出波导，位于输入和中间波导之间的第一光栅，以及位于中间和输出波导之间的第二光栅，使得在使用中，在输入波导中传播的光在第一光栅的帮助下耦合到中间波导中，然后借助于第二光栅耦合到输出波导中。耦合器是定向耦合器，特别是双光栅辅助定向耦合器，并且可以用于在光纤和集成半导体器件之间或在不同波导之间耦合光。

6. 发明申请

WO2011089386A1 ELECTRO-OPTICE DEVICE COMPRISING A RIDGE WAVEGUIDE AND A PN JUNCTION AND METHOD OF MANUFACTURING SAID DEVICE 审中-公开
标题翻译：包含一个波峰波形和一个PN结的电选装置和制造装置的方法
公开(公告)号：WO2011089386A1
公开(公告)日：2011-07-28
申请号：PCT/GB2011/000060
申请日：2011-01-20
申请人： UNIVERSITY OF SURREY , THOMSON, David , GARDES, Frédéric , REED, Graham
发明人： THOMSON, David , GARDES, Frédéric , REED, Graham
IPC分类号： G02F1/025
CPC分类号： G02F1/025 , G02B6/134 , G02B6/1347 , G02B6/136 , G02B2006/12173 , G02F2001/0152 , G02F2201/063
摘要： An electro-optic device (10), comprising an insulating layer (14) and a layer (16, 18a, 18b, 20a, 20b) of light-carrying material adjacent the insulating layer. The layer of light-carrying material, such as silicon, comprises a first doped region (18a, 18b) of a first type and a second doped region (20a, 20b) of a second, different type abutting the first doped region to form a pn junction. The first doped region has a first thickness at the junction, and the second doped region has a second thickness at the junction, the first thickness being greater than the second thickness the two regions thereby, defining a waveguide rib (21) in the first doped region for propagating optical signals. Since the position of the junction coincides with the sidewall of the waveguide rib (21) a self-aligned process can be used in order to simplify the fabrication process and increase yield.
摘要翻译：一种电光器件（10），包括绝缘层（14）和邻近绝缘层的轻载体材料层（16,18a，18b，20a，20b）。光载体材料如硅的层包括第一类型的第一掺杂区域（18a，18b）和与第一掺杂区域邻接的第二不同类型的第二掺杂区域（20a，20b），以形成 pn结。所述第一掺杂区在所述结处具有第一厚度，并且所述第二掺杂区在所述结处具有第二厚度，所述第一厚度大于所述第二厚度，从而限定所述第一掺杂区中的波导肋（21）用于传播光信号的区域。由于接头的位置与波导肋（21）的侧壁重合，所以可以使用自对准工艺来简化制造工艺并提高产量。

7. 发明申请

WO2005078513A1 METHOD AND APPARATUS FOR POLARIZATION INSENSITIVE PHASE SHIFTING OF AN OPTICAL BEAM IN AN OPTICAL DEVICE 审中-公开
标题翻译：用于光学器件中光束的偏振敏感相位移位的方法和装置
公开(公告)号：WO2005078513A1
公开(公告)日：2005-08-25
申请号：PCT/US2005/001601
申请日：2005-01-21
申请人： INTEL CORPORATION , LIU, Ansheng , JONES, Richard , PANICCIA, Mario , REED, Graham
发明人： LIU, Ansheng , JONES, Richard , PANICCIA, Mario , REED, Graham
IPC分类号： G02F1/025
CPC分类号： G02F1/025 , G02F2203/06
摘要： An apparatus and method for modulating a phase of optical beam independent of polarization. In one embodiment, an apparatus according to embodiments of the present invention includes a first region of an optical waveguide disposed in semiconductor material, the first region having a first conductivity type, and a second region of the optical waveguide disposed in the semiconductor material, the second region having a second conductivity type opposite to the first conductivity type. The apparatus also includes a substantially V shaped insulating region disposed between the first and second regions of the optical waveguide, wherein a vertex of the substantially V shaped insulating region forms an intersecting line that is substantially parallel to an optical path of an optical beam to be directed through the optical waveguide.
摘要翻译：用于独立于偏振调制光束的相位的装置和方法。在一个实施例中，根据本发明的实施例的装置包括设置在半导体材料中的光波导的第一区域，具有第一导电类型的第一区域和设置在半导体材料中的光波导的第二区域，第二区域具有与第一导电类型相反的第二导电类型。该装置还包括设置在光波导的第一和第二区域之间的大致V形的绝缘区域，其中大致V形绝缘区域的顶点形成基本上平行于光束的光路的交叉线，引导通过光波导。

8. 发明申请

WO2005051885A1 PROCESS FOR THE PRODUCTION OF ESTERS OF MONO-,DI-OR POLYCARBOXYLIC ACIDS 审中-公开
标题翻译：生产单，二或多羧酸的酯的方法
公开(公告)号：WO2005051885A1
公开(公告)日：2005-06-09
申请号：PCT/GB2004/004413
申请日：2004-10-18
申请人： DAVY PROCESS TECHNOLOGY LIMITED , SUTTON, David, Mark , REED, Graham , HILES, Andrew, George
发明人： SUTTON, David, Mark , REED, Graham , HILES, Andrew, George
IPC分类号： C07C67/08
CPC分类号： C07C29/177 , C07C67/08 , C07C31/207 , C07C69/60
摘要： A process for the production of carboxylic acid esters by reaction of a carboxylic acid selected from mono-, di- and polycarboxylic acids, with an alcohol in the presence of water of solution comprising the steps of: (a) providing a solution comprising the carboxylic acid and the water of solution; (b) reacting the solution of the carboxylic acid in an esterification zone with an alcohol to form an ester and water of esterification; (c) removing the water of solution and the water of esterification; and (d) recovering the ester.
摘要翻译：一种通过在选自单羧酸，二羧酸和多元羧酸的羧酸与醇在溶液水存在下反应制备羧酸酯的方法，包括以下步骤：（a）提供包含羧酸的溶液酸和水溶液; （b）使酯化区中的羧酸溶液与醇反应，形成酯化的酯和水; （c）除去溶液中的水和酯化水; 和（d）回收酯。

9. 发明申请

WO2003006446A1 PROCESS FOR THE PRODUCTION OF ETHERS, THYPICALLY THF 审中-公开
标题翻译：用于生产乙醚的方法，THYPICALLY THF
公开(公告)号：WO2003006446A1
公开(公告)日：2003-01-23
申请号：PCT/GB2002/003195
申请日：2002-07-10
申请人： DAVY PROCESS TECHNOLOGY LIMITED , SUTTON, David, Mark , HILES, Andrew, George , REED, Graham , STANNARD, John, Anthony
发明人： SUTTON, David, Mark , HILES, Andrew, George , REED, Graham , STANNARD, John, Anthony
IPC分类号： C07D307/08
CPC分类号： C07D307/08
摘要： A process is described for the production of ethers, typically terahydrofuran, by reaction of a corresponding organic feed material selected from dicarboxylic acids and/or anhydrides, monoesters of dicarboxylic acids and/or anhydrides, diesters of dicarboxylic acids and/or anhydrides, lactones, and mixtures of two or more thereof in the presence of hydrogen which comprises the steps of: (a) supplying a stream comprising the organic feed material to a first vaporisation zone and contacting said feed with cycle gas comprising hydrogen such that at least a portion of the feed material is vaporised by and into the cycle gas; (b) supplying at least a portion of the cycle gas and the vaporised feed material to a first reaction zone comprising catalyst and operating under reaction conditions to allow hydrogenation and dehydration to occur; (c) recovering from the first reaction zone an intermediate product stream comprising unreacted feed material, cycle gas, desired product(s), and any co-products and by-products; (d) supplying the intermediate product stream to a second vaporisation zone and contacting it with additional feed material such that the said additional feed material is vaporised by and into the intermediate product stream; (e) supplying the product of step (d) to a subsequent reaction zone comprising catalyst and operating under reaction conditions to allow hydrogenation and, if required, dehydration to occur; and (f) recovering from the subsequent reaction zone a product stream comprising the ether.
摘要翻译：描述了通过相应的选自二羧酸和/或酸酐的有机原料，二羧酸和/或酸酐的单酯，二羧酸和/或酸酐的二酯，内酯，和其中两种或更多种在氢存在下的混合物，其包括以下步骤：（a）将包含有机进料的物流供应到第一蒸发区，并使所述进料与包含氢的循环气体接触，使得至少一部分原料被循环气体蒸发并进入循环气体中; （b）将循环气体和蒸发的进料的至少一部分供应到包含催化剂并在反应条件下操作以允许氢化和脱水发生的第一反应区; （c）从第一反应区回收包含未反应的进料，循环气体，所需产物和任何副产物和副产物的中间产物流; （d）将中间产物流供应到第二蒸发区并使其与另外的进料相接触，使得所述另外的进料通过中间产物流蒸发并进入中间产物流; （e）将步骤（d）的产物供给到包含催化剂的后续反应区域中，并在反应条件下操作以允许氢化，如果需要，进行脱水发生; 和（f）从后续反应区回收包含醚的产物流。

10. 发明申请

WO2013034881A1 PROCESS FOR PURIFYING A STREAM COMPRISING 1,4- BUTANEDIOL 审中-公开
标题翻译：用于净化包含1,4-丁二醇的流程的方法
公开(公告)号：WO2013034881A1
公开(公告)日：2013-03-14
申请号：PCT/GB2012/052048
申请日：2012-08-21
申请人： DAVY PROCESS TECHNOLOGY LIMITED , REED, Graham , GORDON, Paul
发明人： REED, Graham , GORDON, Paul
IPC分类号： C07C29/80 , C07C29/90 , C07C31/20
CPC分类号： C07C29/90 , B01D3/002 , B01D3/009 , B01D3/14 , C07C29/80 , C07C29/84 , C07C31/207
摘要： A process for purifying a stream comprising 1,4-butanediol comprising the steps of: (a) supplying a crude product stream comprising 1,4-butandiol and one or more of γ- butyrolactone, 2-(4-hydroxybutoxy)-tetrahydrofuran, 4-hydroxybutyl(4-hydroxybutyrate), and 3-(4-hydroxybutoxy)-tetrahydrofuran to a first distillation column; (b) removing a side-draw comprising 1,4-butanediol, and light components, said light components including at least some of those produced by reaction in the first distillation column; (c) passing the stream to a hydrogenation zone; (d) subjecting the stream from step (c) to hydrogenation in the hydrogenation zone in the presence of a hydrogenation catalyst, and recovering from the hydrogenation zone a 1,4- butanediol product stream having a reduced content of 2-(4-hydroxybutoxy)-tetrahydrofuran, and optionally additionally including (4-hyroxybutyl)-4-hydroxybutyrate formed by reaction ofγ-butyrolactone; (e) passing the 1,4-butaendiol product stream from step (d) to a second distillation column operated such that (4-hyroxybutyl)-4-hydroxybutyrate is removed as a bottom stream and removing a 1,4-butanediol stream as overhead; and (f) passing the overhead stream removed in (e) to a third distillation column and recovering a purified 1,4-butanediol stream.
摘要翻译：一种纯化包含1,4-丁二醇的流的方法，包括以下步骤：（a）提供包含1,4-丁二醇和一种或多种γ-丁内酯，2-（4-羟基丁氧基） - 四氢呋喃， 4-羟基丁基（4-羟基丁酸酯）和3-（4-羟基丁氧基） - 四氢呋喃至第一蒸馏塔; （b）除去包含1,4-丁二醇和轻组分的侧馏分，所述轻组分包括在第一蒸馏塔中通过反应产生的至少一些组分; （c）使该物流进入氢化区; （d）在加氢催化剂存在下，使来自步骤（c）的物流在氢化区中进行氢化，并从氢化区回收具有降低的2-（4-羟基丁氧基）的1,4-丁二醇产物流） - 四氢呋喃，并且任选地另外包括通过γ-丁内酯反应形成的（4-羟基丁基）-4-羟基丁酸酯; （e）将来自步骤（d）的1,4-丁炔二醇产物流送至第二蒸馏塔，其操作使得（4-羟基丁基）-4-羟基丁酸酯作为底部流除去并除去1,4-丁二醇流如高架; 和（f）将（e）中除去的塔顶馏出物通入第三蒸馏塔并回收纯化的1,4-丁二醇物流。

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