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    INTERFERENCE SYSTEM AND AN INTERFERENCE METHOD
    132.
    发明申请
    INTERFERENCE SYSTEM AND AN INTERFERENCE METHOD 有权
    干扰系统和干扰方法

    公开(公告)号：US20160047643A1

    公开(公告)日：2016-02-18

    申请号：US14824380

    申请日：2015-08-12

    Applicant: Kabushiki Kaisha Toshiba

    Inventor： Zhiliang YUAN ,  Marco LUCAMARINI ,  James DYNES ,  Bernd Matthias FROHLICH ,  Andrew James SHIELDS ,  Joanna Krystyna SKIBA-SZYMANSKA

    IPC: G01B9/02 ,  H04B10/70 ,  H01S3/10

    CPC classification number: G01B9/0201 ,  H01S5/005 ,  H01S5/0078 ,  H01S5/0428 ,  H01S5/06216 ,  H01S5/06246 ,  H01S5/4006 ,  H04B10/70

    Abstract: An interference system, comprising: an interference apparatus, configured such that input light pulses interfere at an interference component; wherein the input of said interference apparatus is provided by a phase-randomised light source, said phase-randomised light source comprising: at least one slave light source; at least one master light source configured to intermittently generate master light pulses such that the phase of each master light pulse has a random relationship to the phase of each subsequently generated master light pulse, further configured to supply said master light pulses to the slave light source; and a controller, configured to apply a time varying drive signal to said at least one slave light source such that just one slave light pulse is generated during each period of time for which a master light pulse is received, such that the phase of each slave light pulse has a random relationship to the phase of each subsequently generated slave light pulse.

    Abstract translation: 一种干扰系统，包括：干扰装置，被配置为使得输入光脉冲干扰干扰分量; 其中所述干涉装置的输入由相位随机化光源提供，所述相位随机光源包括：至少一个从属光源; 至少一个主光源被配置为间歇地产生主光脉冲，使得每个主光脉冲的相位与随后产生的每个主光脉冲的相位具有随机关系，还被配置为将所述主光脉冲提供给从光源 ; 以及控制器，被配置为向所述至少一个从属光源施加时变驱动信号，使得仅在接收到主光脉冲的每个时间周期期间仅产生一个从属光脉冲，使得每个从属的相位 光脉冲与随后产生的从属光脉冲的相位具有随机关系。

    In situ calibration of interferometers
    134.
    发明授权
    In situ calibration of interferometers 有权

    公开(公告)号：US09234739B2

    公开(公告)日：2016-01-12

    申请号：US14529616

    申请日：2014-10-31

    Applicant: Zygo Corporation

    Inventor： Daniel M. Sykora ,  Michael Kuechel

    IPC: G01B11/02 ,  G01B9/02 ,  G01B11/24

    CPC classification number: G01B9/02072 ,  G01B9/0201 ,  G01B9/02032 ,  G01B9/02057 ,  G01B9/02068 ,  G01B11/2441

    Abstract: In-situ calibration of an interferometer includes making a sequence of phase measurements of a test object using the interferometer, each of the measurements having a same carrier fringe frequency, where at least some of the measurements are made at three or more different orientations of carrier fringes, and determining information about the test object based on at least some of the phase measurements, in which determining the information includes reducing errors in the measurements arising from imperfections in the interferometer based on the measurements made at the three or more different orientations.

    Electro-Optical Silicon-Based Phase Modulator with Null Residual Amplitude Modulation
    136.
    发明申请
    Electro-Optical Silicon-Based Phase Modulator with Null Residual Amplitude Modulation 有权
    具有零残余幅度调制的电光硅基相位调制器

    公开(公告)号：US20140368828A1

    公开(公告)日：2014-12-18

    申请号：US14299725

    申请日：2014-06-09

    Applicant: MEDLUMICS, S.L.

    Inventor： Juan Lloret Soler ,  Kirill Zinoviev ,  José Luis Rubio Guivernau ,  Eduardo Margallo Balbás

    IPC: G02F1/01 ,  G01B9/02

    CPC classification number: G01B9/02091 ,  A61B5/0066 ,  G01B9/0201 ,  G02B2006/12142 ,  G02F1/025 ,  G02F1/2257 ,  G02F2201/06 ,  G02F2203/50

    Abstract: Systems and methods are presented for modulating a beam of radiation, such that the modulated beam exhibits substantially null residual amplitude modulation (RAM). An electro-optical modulator is presented that includes a waveguide, a first region associated with the waveguide and a second region associated with the waveguide. The waveguide is designed to guide a beam of radiation. A first electric potential applied to the first region causes a first modulation to the beam of radiation while a second electric potential applied to the second region causes a second modulation to the beam of radiation. The first modulation combined with the second modulation provides substantially null residual amplitude modulation of the beam of radiation.

    Abstract translation: 呈现用于调制辐射束的系统和方法，使得调制的光束呈现基本上为零的残余幅度调制（RAM）。 提出了一种电光调制器，其包括波导，与波导相关联的第一区域和与波导相关联的第二区域。 波导被设计成引导辐射束。 施加到第一区域的第一电位对辐射束进行第一调制，而施加到第二区的第二电位对辐射束施加第二调制。 与第二调制组合的第一调制提供辐射束的基本上零的剩余幅度调制。

    Phase shift interferometer
    137.
    发明授权
    Phase shift interferometer 有权
    相移干涉仪

    公开(公告)号：US08842288B2

    公开(公告)日：2014-09-23

    申请号：US14037628

    申请日：2013-09-26

    Applicant: Fujikura Ltd.

    Inventor： Kensuke Ogawa

    IPC: G01B9/02 ,  G01N21/47 ,  G01M11/00

    CPC classification number: G01B9/02 ,  G01B9/02004 ,  G01B9/0201 ,  G01B9/02069 ,  G01B9/02079 ,  G01B9/02091 ,  G01M11/31 ,  G01N21/4795

    Abstract: Provided is a phase shift interferometer which comprises: a light source; an incident light path; a light circulation unit; a connection path; a light splitting/combining unit; a probe light path; a reference light path; a test sample measurement unit; a light terminal; a light-phase shifting unit which is provided in either the probe light path or the reference light path, and subjects light to phase shifting by a phase shift quantity of αi/2 (radian units, where αi is a real number, the range of values taken by αi is 0≦αi≦3π/2, and i is an integer where 3≦i), and periodically changes the phase shift quantity of αi/2; a light-emission path; a light detector which outputs an interference signal; and a controller for controlling the phase shift quantity in the light-phase shifting unit and the cycle at which the phase shift is controlled.

    Abstract translation: 提供一种相移干涉仪，其包括：光源; 入射光路; 光循环单元; 连接路径 光分离/组合单元; 探测光路; 参考光路; 测试样品测量单元; 一个轻型终端 设置在探测光路或参考光路中的光移相单元，并且通过αi/ 2（弧度单位，αi是实数）的相移量使光线相移， αi取值为0＆nlE;αi＆nlE; 3＆pgr / 2，i为3＆nlE; i）的整数，周期性地改变αi/ 2的相移量; 发光路径; 输出干扰信号的光检测器; 以及用于控制光移相装置中的相移量的控制器和控制相移的周期。

    Spectral optical coherence tomography
    138.
    发明授权
    Spectral optical coherence tomography 失效
    光谱相干断层扫描

    公开(公告)号：US08786862B2

    公开(公告)日：2014-07-22

    申请号：US13003453

    申请日：2009-07-10

    Applicant: Maciej Wojtkowski ,  Maciej Szkulmowski ,  Tomasz Bajraszewski

    Inventor： Maciej Wojtkowski ,  Maciej Szkulmowski ,  Tomasz Bajraszewski

    IPC: G01B9/02 ,  G01B11/02 ,  G02F1/01 ,  G02F1/29 ,  G02B27/00 ,  G01J3/453

    CPC classification number: G01B9/0201 ,  A61B3/102 ,  G01B9/02078 ,  G01B9/02091 ,  G01B2290/35 ,  G01J3/4535 ,  G01N21/4795 ,  G02B26/105 ,  G02B27/40

    Abstract: The invention relates to an apparatus for generating a scannable optical delay for a beam of light and an apparatus for Fourier domain optical coherence tomography having said apparatus for generating a scannable optical delay in its reference arm (15). The light beam is directed to a pivotably driven mirror (10) from where it is reflected to a fixed mirror (12), and from there back retro reflected along the reference arm (5). Lens optics (9) are provided to ensure accurate optical alignment in several pivot positions of the pivotably driven mirror (10).

    Abstract translation: 本发明涉及用于产生用于光束的可扫描光学延迟的装置和用于傅立叶域光学相干断层摄影的装置，其具有用于在其参考臂（15）中产生可扫描光学延迟的所述装置。 光束被引导到从其被反射到固定反射镜（12）的可枢转地驱动的反射镜（10），并且从该背面沿着参考臂（5）反射回来。 提供透镜光学元件（9）以确保在可枢转驱动的反射镜（10）的若干枢转位置的精确的光学对准。

    Optical imaging method and optical imaging apparatus
    140.
    发明授权
    Optical imaging method and optical imaging apparatus 有权
    光学成像方法和光学成像装置

    公开(公告)号：US08564788B2

    公开(公告)日：2013-10-22

    申请号：US13190676

    申请日：2011-07-26

    Applicant: Zhijia Yuan ,  Zhenguo Wang ,  Kinpui Chan

    Inventor： Zhijia Yuan ,  Zhenguo Wang ,  Kinpui Chan

    IPC: G01B9/02

    CPC classification number: G01B9/0201 ,  A61B3/102 ,  G01B9/02004 ,  G01B9/02069 ,  G01B9/02078 ,  G01B9/02091

    Abstract: An optical imaging method is provided that can realize, at low cost, the extension of the imaging depth range. An optical imaging apparatus 400 is an apparatus that forms a tomographic image of an object using FD-OCT, and performs a scanning step, detection step and imaging step. In the scanning step, the object is scanned with a signal light while alternately changing the phase difference between the signal light and a reference light to two preset phase differences. In the detection step, interference light of the signal light passing through the object and the reference light is detected. In the imaging step, a tomographic image of the object is formed based on the detection results of a plurality of the interference lights sequentially obtained in the detection step according to the scanning.

    Abstract translation: 提供了一种能够以低成本实现成像深度范围的扩展的光学成像方法。 光学成像装置400是使用FD-OCT形成物体的断层图像并执行扫描步骤，检测步骤和成像步骤的装置。 在扫描步骤中，用信号灯扫描物体，同时交替地将信号光和参考光之间的相位差改变为两个预设相位差。 在检测步骤中，检测通过物体的信号光和基准光的干涉光。 在成像步骤中，基于根据扫描的检测步骤中顺序获得的多个干涉光的检测结果，形成物体的断层图像。

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