公开(公告)号：US09319757B2

公开(公告)日：2016-04-19

申请号：US13726382

申请日：2012-12-24

Applicant: Aref Chowdhury ,  Dominick Scordo

Inventor： Aref Chowdhury ,  Dominick Scordo

IPC: H04Q11/00 ,  H04J14/02

CPC classification number: H04Q11/0005 ,  H04J14/0212 ,  H04Q2011/0011 ,  H04Q2011/0016 ,  H04Q2011/003 ,  H04Q2011/0058

Abstract: An apparatus includes a wavelength-selective optical switch able to route light between a first optical port and a plurality of second optical ports. The wavelength-selective optical switch includes a bank of optical wavelength-converters. Each wavelength converter of the bank is able to selectively optically couple an optical data stream on a wavelength-channel between the first optical port and individual ones of the second optical ports.

Abstract translation: 一种装置包括能够在第一光学端口和多个第二光学端口之间路由光的波长选择性光学开关。 波长选择光开关包括一组光波长转换器。 银行的每个波长转换器能够选择性地光耦合在第一光学端口和第一光学端口上的波长通道之间的波长信道上的光学数据流。

公开(公告)号：US08396372B2

公开(公告)日：2013-03-12

申请号：US10932980

申请日：2004-09-02

Applicant: Aref Chowdhury ,  Rene′-Jean Essiambre ,  Gregory Raybon

Inventor： Aref Chowdhury ,  Rene′-Jean Essiambre ,  Gregory Raybon

IPC: H04B10/00

CPC classification number: H04B10/2531

Abstract: An apparatus includes a non-solitonic all-optical communication path having serially connected first and second segments. The first segment end-couples to a lumped optical transmitter. The second segment end-couples to a lumped optical receiver. Each segment has a series of spans of transmission optical fibers. The all-optical communication path has an optical phase conjugator that optically end-couples the first segment to the second segment. The optical phase conjugator is positioned away from the path's midpoint.

Abstract translation: 一种装置包括具有串联连接的第一和第二段的非孤子全光通信路径。 第一段端接到集中的光发射机。 第二段端接到集总光接收器。 每个段都有一系列传输光纤。 全光通信路径具有光学相位共轭器，其将第一段光学端接耦合到第二段。 光学相位共轭器远离路径的中点定位。

公开(公告)号：US08280210B2

公开(公告)日：2012-10-02

申请号：US12498505

申请日：2009-07-07

Applicant: Aref Chowdhury ,  Arthur Penn Ramirez ,  Theo Max Siegrist

Inventor： Aref Chowdhury ,  Arthur Penn Ramirez ,  Theo Max Siegrist

IPC: G02B6/00 ,  H01P3/12

CPC classification number: H01Q3/26 ,  G02F1/0009 ,  G02F2202/30 ,  G02F2202/32 ,  H01P3/081 ,  H01Q3/44

Abstract: An apparatus has a waveguide that includes a multiferroic medium. A controller is configured to apply a mechanical strain or a control electric or magnetic field to the multiferroic medium. The multiferroic medium has a dielectric permittivity or magnetic permeability that is responsive to the strain or the control field.

Abstract translation: 一种装置具有包括多铁介质的波导。 控制器被配置为向多层介质施加机械应变或控制电场或磁场。 多铁介质具有对应变或控制场响应的介电常数或磁导率。

公开(公告)号：US08005331B2

公开(公告)日：2011-08-23

申请号：US13018997

申请日：2011-02-01

Applicant: Girsh Blumberg ,  Aref Chowdhury

Inventor： Girsh Blumberg ,  Aref Chowdhury

IPC: G02B6/00 ,  G02B6/12

CPC classification number: G02B6/1226 ,  B82Y20/00 ,  G02F1/0356 ,  G02F1/3532 ,  G02F1/3534 ,  G02F1/3536 ,  G02F2001/3548 ,  G02F2201/066 ,  G02F2201/127 ,  G02F2202/20 ,  G02F2203/10

Abstract: A frequency-conversion method that uses a nonlinear optical process to transfer energy between a surface-plasmon (SP) wave that is guided along an electrically conducting strip and a light beam that is guided along an optical waveguide whose core is adjacent to the electrically conducting strip. A periodic structure spatially modulates the nonlinear susceptibility of the waveguide core with a spatial period that is related to a momentum mismatch in the nonlinear optical process. The spatial modulation provides quasi-phase matching for the SP wave and the light beam and enables efficient energy transfer between them.

Abstract translation: 一种频率转换方法，其使用非线性光学方法在沿着导电条带引导的表面等离子体（SP）波之间传递能量，并且沿着沿与光导体相邻的光波导引导的光束 跳闸。 周期性结构利用与非线性光学过程中的动量失配相关的空间周期空间调制波导芯的非线性磁化率。 空间调制为SP波和光束提供准相位匹配，并实现它们之间的有效能量传递。

公开(公告)号：US07920766B2

公开(公告)日：2011-04-05

申请号：US12368792

申请日：2009-02-10

Applicant: Girsh Blumberg ,  Aref Chowdhury

Inventor： Girsh Blumberg ,  Aref Chowdhury

IPC: G02B6/00 ,  G02B6/12

CPC classification number: G02B6/1226 ,  B82Y20/00 ,  G02F1/0356 ,  G02F1/3532 ,  G02F1/3534 ,  G02F1/3536 ,  G02F2001/3548 ,  G02F2201/066 ,  G02F2201/127 ,  G02F2202/20 ,  G02F2203/10

Abstract: An optical frequency converter that uses a nonlinear optical process to transfer energy between a surface-plasmon (SP) wave that is guided along an electrically conducting strip and a light beam that is guided along an optical waveguide whose core is adjacent to the electrically conducting strip. The optical frequency converter has a periodic structure that spatially modulates the nonlinear susceptibility of the waveguide core with a spatial period that is related to a momentum mismatch in the nonlinear optical process. The spatial modulation provides quasi-phase matching for the SP wave and the light beam and enables efficient energy transfer between them.

Abstract translation: 一种光学频率转换器，其使用非线性光学过程在沿着导电条带被引导的表面等离子体（SP）波之间传递能量，以及沿着其与所述导电条相邻的光波导被引导的光束 。 光频变换器具有周期性结构，其空间调制波导芯的非线性磁化率与非线性光学过程中的动量失配相关的空间周期。 空间调制为SP波和光束提供准相位匹配，并实现它们之间的有效能量传递。

公开(公告)号：US20110008008A1

公开(公告)日：2011-01-13

申请号：US12498505

申请日：2009-07-07

Applicant: Aref Chowdhury ,  Arthur Penn Ramirez ,  Theo Max Siegrist

Inventor： Aref Chowdhury ,  Arthur Penn Ramirez ,  Theo Max Siegrist

IPC: G02B6/00 ,  H01P3/12

CPC classification number: H01Q3/26 ,  G02F1/0009 ,  G02F2202/30 ,  G02F2202/32 ,  H01P3/081 ,  H01Q3/44

Abstract: An apparatus has a waveguide that includes a multiferroic medium. A controller is configured to apply a mechanical strain or a control electric or magnetic field to the multiferroic medium. The multiferroic medium has a dielectric permittivity or magnetic permeability that is responsive to the strain or the control field.

Abstract translation: 一种装置具有包括多铁介质的波导。 控制器被配置为向多层介质施加机械应变或控制电场或磁场。 多铁介质具有对应变或控制场响应的介电常数或磁导率。

公开(公告)号：US20100202728A1

公开(公告)日：2010-08-12

申请号：US12368792

申请日：2009-02-10

Applicant: Girsh Blumberg ,  Aref Chowdhury

Inventor： Girsh Blumberg ,  Aref Chowdhury

IPC: G02B6/12

CPC classification number: G02B6/1226 ,  B82Y20/00 ,  G02F1/0356 ,  G02F1/3532 ,  G02F1/3534 ,  G02F1/3536 ,  G02F2001/3548 ,  G02F2201/066 ,  G02F2201/127 ,  G02F2202/20 ,  G02F2203/10

Abstract: An optical frequency converter that uses a nonlinear optical process to transfer energy between a surface-plasmon (SP) wave that is guided along an electrically conducting strip and a light beam that is guided along an optical waveguide whose core is adjacent to the electrically conducting strip. The optical frequency converter has a periodic structure that spatially modulates the nonlinear susceptibility of the waveguide core with a spatial period that is related to a momentum mismatch in the nonlinear optical process. The spatial modulation provides quasi-phase matching for the SP wave and the light beam and enables efficient energy transfer between them.

Abstract translation: 一种光学频率转换器，其使用非线性光学过程在沿着导电条带被引导的表面等离子体（SP）波之间传递能量，以及沿着其与所述导电条相邻的光波导被引导的光束 。 光频变换器具有周期性结构，其空间调制波导芯的非线性磁化率与非线性光学过程中的动量失配相关的空间周期。 空间调制为SP波和光束提供准相位匹配，并实现它们之间的有效能量传递。

公开(公告)号：US20090139957A1

公开(公告)日：2009-06-04

申请号：US12315202

申请日：2008-12-01

Applicant: Aref Chowdhury ,  Hock Ng ,  Richart Elliott Slusher

Inventor： Aref Chowdhury ,  Hock Ng ,  Richart Elliott Slusher

IPC: B44C1/22

CPC classification number: B82Y20/00 ,  B81B1/00 ,  G02B6/1225 ,  G02B2006/12035 ,  H01J1/304 ,  H01J3/022 ,  H01J9/025 ,  H01L21/0254 ,  H01L21/02639 ,  H01L21/30612

Abstract: A fabrication method produces a mechanically patterned layer of group III-nitride. The method includes providing a crystalline substrate and forming a first layer of a first group III-nitride on a planar surface of the substrate. The first layer has a single polarity and also has a pattern of holes or trenches that expose a portion of the substrate. The method includes then, epitaxially growing a second layer of a second group III-nitride over the first layer and the exposed portion of substrate. The first and second group III-nitrides have different alloy compositions. The method also includes subjecting the second layer to an aqueous solution of base to mechanically pattern the second layer.

Abstract translation: 制造方法产生III族氮化物的机械图案化层。 该方法包括提供晶体衬底并在衬底的平坦表面上形成第一III族氮化物的第一层。 第一层具有单一极性，并且还具有露出基板的一部分的孔或沟槽的图案。 该方法包括在第一层和衬底的暴露部分上外延生长第二III族氮化物层的第二层。 第一和第二III族氮化物具有不同的合金组成。 该方法还包括使第二层经受基底水溶液以机械地图形化第二层。

公开(公告)号：US20070263278A1

公开(公告)日：2007-11-15

申请号：US11432803

申请日：2006-05-13

Applicant: Aref Chowdhury ,  John Tataronis

Inventor： Aref Chowdhury ,  John Tataronis

IPC: G02F1/35 ,  G02F2/02

CPC classification number: G02F1/3534 ,  G02F1/365 ,  G02F2202/30

Abstract: An apparatus includes one or more optical couplers, an optical medium, and an optical pump source. The optical medium behaves as a negative refractive index material over a frequency range. The one or more optical couplers are configured to provide first and second optical inputs to the optical medium and to provide an optical output from the optical medium. The optical pump source is coupled by one of the one or more optical couplers to deliver pump light to the optical medium.

Abstract translation: 一种装置包括一个或多个光耦合器，光介质和光泵源。 光学介质在频率范围内表现为负折射率材料。 一个或多个光耦合器被配置为向光介质提供第一和第二光输入并提供来自光介质的光输出。 光泵浦源由一个或多个光耦合器中的一个耦合，以将泵浦光输送到光学介质。

公开(公告)号：US20070041733A1

公开(公告)日：2007-02-22

申请号：US11586290

申请日：2006-10-25

Applicant: Aref Chowdhury

Inventor： Aref Chowdhury

IPC: H04B10/00

CPC classification number: H04J14/02 ,  G02B1/007 ,  G02B6/2746 ,  G02B27/283 ,  H04J14/06

Abstract: A polarization-diverse apparatus includes a polarization-sensitive negative-refractive-index (NRI) medium and a polarization splitter. The polarization splitter is configured to receive an electromagnetic input signal, to direct a first polarization component of the received input signal to a first path segment, and to direct a second polarization component of the received input signal to a separate second path segment. The medium has first and second signal ports. The first port is at an end of the first path segment. The second port is at an end of the second path segment. The medium outputs an altered signal from one of the ports in response to receiving the input signal at the other of the ports. In a preferred embodiment, the medium has an internal optical axis, and the polarizations of the first and second components are oriented relative to that axis so that effect of altering the input signal is enhanced. The two path segments may include polarization-maintaining waveguides.

Abstract translation: 极化多样化装置包括偏振敏感负折射率（NRI）介质和偏振分离器。 偏振分离器被配置为接收电磁输入信号，以将接收到的输入信号的第一偏振分量引导到第一路径段，并将接收到的输入信号的第二偏振分量引导到单独的第二路径段。 介质具有第一和第二信号端口。 第一个端口位于第一个路径段的末尾。 第二个端口位于第二个路径段的末尾。 响应于在另一个端口处接收到输入信号，介质从一个端口输出改变的信号。 在优选实施例中，介质具有内部光轴，并且第一和第二部件的极化相对于该轴线定向，从而增强了改变输入信号的效果。 两个路径段可以包括偏振保持波导。