APPARATUS AND METHOD FOR MEASURING GANGLION CELLS
    1.
    发明申请
    APPARATUS AND METHOD FOR MEASURING GANGLION CELLS 有权
    用于测量神经细胞的装置和方法

    公开(公告)号:US20140121530A1

    公开(公告)日:2014-05-01

    申请号:US13686291

    申请日:2012-11-27

    IPC分类号: A61B3/14

    CPC分类号: A61B3/145

    摘要: An apparatus for measuring ganglion cells may include: a light generation unit configured to irradiate a first light signal polarized in a first direction and a second light signal polarized in a second direction perpendicular to the first direction to a subject; a reflected light processing unit configured to generate an amplification signal corresponding to an image of the subject using a first reflection signal, which is the first light signal reflected from the subject, and a second reflection signal, which is the second light signal reflected from the subject; and an image processing unit configured to measure ganglion cells in the subject using the amplification signal. The apparatus may be used to count the number of normal ganglion cells in the retina by measuring a phase difference of two lights polarized in different directions. The apparatus may also be used to monitor the progress of glaucoma.

    摘要翻译: 用于测量神经节细胞的装置可以包括:光产生单元,被配置为将与第一方向垂直的第二方向上的沿第一方向偏振的第一光信号和第二光信号偏振到对象; 反射光处理单元,被配置为使用作为从被摄体反射的第一光信号的第一反射信号和从第二反射信号反射的第二反射信号来生成与被摄体的图像相对应的放大信号, 学科; 以及图像处理单元,被配置为使用所述放大信号来测量所述对象中的神经节细胞。 该装置可以通过测量在不同方向上偏振的两个光的相位差来计数视网膜中正常神经节细胞的数量。 该装置还可用于监测青光眼的进展。

    All-optical XOR gate by using semiconductor optical amplifiers
    2.
    发明授权
    All-optical XOR gate by using semiconductor optical amplifiers 失效
    全光XOR门采用半导体光放大器

    公开(公告)号:US06930826B2

    公开(公告)日:2005-08-16

    申请号:US10175610

    申请日:2002-06-20

    CPC分类号: G02F3/00

    摘要: The present invention relates to a method of embodying all-optical XOR logic gate by using semiconductor optical amplifier, and more particularly, to a technique to embody all-optical XOR logic gate utilizing the cross-gain modulation (XGM) characteristic of semiconductor optical amplifiers controllable with input currents, illumination signal, and pumping signal.The method of all-optical XOR logic element in accordance with the present invention is characterized to obtain operational characteristic of the all-optical XOR logic element by inputting pump-signal and illumination signal concurrently into two semiconductor optical amplifiers and then summing the two output signals having XGM characteristic arising from gain saturation and wavelength conversion of the semiconductor optical amplifiers.

    摘要翻译: 本发明涉及通过使用半导体光放大器来实现全光XOR逻辑门的方法,更具体地说,涉及利用半导体光放大器的交叉增益调制(XGM)特性来体现全光XOR逻辑门的技术 可用输入电流,照明信号和泵浦信号控制。 根据本发明的全光XOR逻辑元件的方法的特征在于通过将泵浦信号和照明信号同时输入到两个半导体光放大器中,然后将两个输出信号相加,从而获得全光XOR逻辑元件的工作特性 具有由半导体光放大器的增益饱和度和波长转换引起的XGM特性。

    Terahertz wave generator and method of generating high-power terahertz waves using the same
    4.
    发明授权
    Terahertz wave generator and method of generating high-power terahertz waves using the same 有权
    太赫兹波发生器及使用其产生大功率太赫兹波的方法

    公开(公告)号:US08198614B2

    公开(公告)日:2012-06-12

    申请号:US12641006

    申请日:2009-12-17

    IPC分类号: G21K5/02

    CPC分类号: H01S1/06

    摘要: The present invention relates to a terahertz wave generator and a method of generating high-power terahertz waves using the terahertz wave generator. The terahertz wave generator includes a hollow spherical body, and a focusing lens installed in a cutout portion of the spherical body or an opening formed in the cutout portion, wherein an inner surface of the spherical body is coated with metal. In the method, frequencies having different levels are incident through the focusing lens or the opening to generate a plurality of air plasmas, and the air plasmas cause continuous focusing the metal-coated inner surface and hollow space of the spherical body, thus generating high-power terahertz waves. According to the present invention, a plurality of air plasmas is continuously generated, thus solving the problem in which the light intensity of terahertz waves generated using one air plasma is low.

    摘要翻译: 本发明涉及太赫兹波发生器和使用太赫兹波发生器产生大功率太赫兹波的方法。 太赫兹波发生器包括中空球体和安装在球体的切口部分中的聚焦透镜或形成在切口部分中的开口,其中球体的内表面涂有金属。 在该方法中,具有不同等级的频率通过聚焦透镜或开口入射以产生多个空气等离子体,并且空气等离子体使得球形体的金属涂覆的内表面和中空空间连续聚焦, 功率太赫兹波。 根据本发明,连续地产生多个空气等离子体,从而解决了使用一个空气等离子体产生的太赫兹波的光强度低的问题。

    Apparatus and method for realizing all-optical NOR logic device using gain saturation characteristics of a semiconductor optical amplifier
    5.
    发明授权
    Apparatus and method for realizing all-optical NOR logic device using gain saturation characteristics of a semiconductor optical amplifier 失效
    使用半导体光放大器的增益饱和特性来实现全光NOR逻辑器件的装置和方法

    公开(公告)号:US07123407B2

    公开(公告)日:2006-10-17

    申请号:US11039692

    申请日:2005-01-20

    IPC分类号: G02F3/00

    摘要: The present invention relates to an apparatus and a method for realizing all-optical NOR logic device using the gain saturation characteristics of a semiconductor optical amplifier(SOA). More particularly, the invention relates to a 10 Gbit/s all-optical NOR logic device among all-optical logic devices, in which a signal transmitted from a given point of an optical circuit such as an optical computing circuit is used as a pump signal and a probe signal.The method for realizing an all-optical NOR logic device using the gain saturation characteristics of the SOA according to the present invention comprises the steps of: utilizing A+B signal which couples together an input signal pattern A (1100) and an input signal pattern B (0110) as a pump signal (1110); utilizing a probe signal (1111) by generating a clock signal out of said input signal pattern A (1100); and obtaining a Boolean equation {overscore (A+B)} by making said probe signal and said pump signal incident upon the SOA simultaneously from the opposite direction.The all-optical logic device according to the present invention has a simple construction since it is realized through the XGM (Cross Gain Modulation) method which utilizes the gain saturation characteristics. Also, it is expected that the method employed in the present invention could be used for realizing other all-optical logic circuits and devices.

    摘要翻译: 本发明涉及使用半导体光放大器(SOA)的增益饱和特性实现全光NOR逻辑器件的装置和方法。 更具体地说,本发明涉及全光逻辑器件中的10Gbit / s全光NOR逻辑器件,其中从诸如光计算电路的光电路的给定点发送的信号用作泵信号 和探测信号。 使用根据本发明的SOA的增益饱和特性来实现全光NOR逻辑器件的方法包括以下步骤:利用将输入信号模式A(1100)和输入信号模式(1100)耦合在一起的A + B信号 B(0110)作为泵浦信号(1110); 通过从所述输入信号模式A(1100)产生时钟信号来利用探测信号(1111); 并通过使所述探针信号和所述泵浦信号从相反方向同时入射到SOA上而获得布尔方程(A + B)。根据本发明的全光逻辑器件具有简单的结构,因为它通过 利用增益饱和特性的XGM(交叉增益调制)方法,并且预期本发明中采用的方法可用于实现其他全光逻辑电路和装置。

    Embodying equipment and method for an all-optical or logic gate by using single SOA
    8.
    发明申请
    Embodying equipment and method for an all-optical or logic gate by using single SOA 有权
    通过使用单个SOA实现全光或逻辑门的设备和方法

    公开(公告)号:US20060092501A1

    公开(公告)日:2006-05-04

    申请号:US11170178

    申请日:2005-06-29

    IPC分类号: H01S3/00

    CPC分类号: G02F3/00

    摘要: Disclosed herein is an apparatus and method for implementing an all-optical OR logic gate. The apparatus includes an optical pulse generator, a Mode-Locked Fiber Laser (MLFL), a first optical splitter, a first optical delay line means, an optical control means, a first optical coupler, a second optical splitter, a second optical delay line means, a third optical splitter, an Erbium Doped Fiber Amplifier (EDFA), a Semiconductor Optical Amplifier (SOA), a second optical coupler, and an optical analyzer. The first optical splitter divides light output from the MLFL. The first and second optical delay line means acquire time delay. The optical control means controls intensity and polarization of the light. The first optical coupler generates the first input signal pattern as a probe signal. The second optical splitter divides light output from the first optical coupler. The third optical splitter divides the second input signal pattern. The EDFA amplifies the divided part of the second input signal pattern as a pump signal. The SOA couples the pump signal with the probe signal in opposite directions to perform the all-optical OR logic operation. The second optical coupler couples a signal output from the SOA with the second input signal pattern.

    摘要翻译: 这里公开了一种用于实现全光OR逻辑门的装置和方法。 该装置包括光脉冲发生器,模锁定光纤激光器(MLFL),第一光分路器,第一光延迟线装置,光控制装置,第一光耦合器,第二光分路器,第二光延迟线 意味着第三光分路器,掺铒光纤放大器(EDFA),半导体光放大器(SOA),第二光耦合器和光分析器。 第一个光分路器分配MLFL的光输出。 第一和第二光延迟线意味着获取时间延迟。 光控制装置控制光的强度和极化。 第一光耦合器产生第一输入信号模式作为探测信号。 第二光分路器分割从第一光耦合器输出的光。 第三光分路器分割第二输入信号模式。 EDFA将第二输入信号模式的分割部分放大为泵浦信号。 SOA将泵浦信号与探针信号相反的方向耦合,以执行全光OR逻辑运算。 第二光耦合器将来自SOA的信号与第二输入信号模式相耦合。

    Apparatus and method for realizing all-optical NOR logic device
    10.
    发明授权
    Apparatus and method for realizing all-optical NOR logic device 失效
    用于实现全光NOR逻辑器件的装置和方法

    公开(公告)号:US06424438B1

    公开(公告)日:2002-07-23

    申请号:US09714215

    申请日:2000-11-17

    IPC分类号: G02F300

    摘要: An apparatus and method for realizing an all-optical NOR logic device includes a distributed feedback laser diode and a tunable laser diode respectively generating two pump signals of different wavelengths. The apparatus also includes a pulse generator and a Mach-Zehnder modulator modulating the pump signals. The apparatus also includes a delay line adapted to delay a pump signal that has been split from the modulated pump signals and that travels along one optical path, and a polarization controller and an optical attenuator adapted to control another pump signal that has been split from the modulated pump signals and that travels along another optical path, to have the same polarization and intensity as those of the pump signal passing through the delay line. An Er-doped amplifier amplifies the sum of the pump signals so that the amplified pump signal sum saturates a semiconductor optical amplifier. The semiconductor optical amplifier exhibits gain saturation and wavelength conversion characteristics in response to an output signal from the Er-doped fiber amplifier and a probe signal passing therethrough. A plurality of 50:50 fiber couplers are coupled to respective output ends of the laser diodes, the Mach-Zehnder modulator, the attenuator, and the Er-doped fiber amplifier in order to conduct coupling and splitting operations for the pump signals.

    摘要翻译: 用于实现全光NOR逻辑器件的装置和方法包括分布反馈激光二极管和可调激光二极管,分别产生不同波长的两个泵浦信号。 该装置还包括脉冲发生器和调制泵浦信号的马赫 - 曾德调制器。 该装置还包括延迟线,其适于延迟已经从调制的泵浦信号分离并且沿着一条光路行进的泵浦信号,以及偏振控制器和光衰减器,其适于控制已经从 调制的泵浦信号并且沿着另一个光路行进,以具有与通过延迟线的泵浦信号相同的极化和强度。 掺铒放大器放大泵浦信号的和,使得放大的泵浦信号与半导体光放大器饱和。 半导体光放大器响应于来自掺铒光纤放大器的输出信号和通过其的探测信号,表现出增益饱和度和波长转换特性。 多个50:50光纤耦合器耦合到激光二极管,马赫 - 曾德尔调制器,衰减器和掺铒光纤放大器的相应输出端,以便对泵浦信号进行耦合和分离操作。