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    WAVEFORM RECONSTRUCTION DEVICE, WAVEFORM RECONSTRUCTION SYSTEM, AND WAVEFORM RECONSTRUCTION METHOD
    1.
    发明公开
    WAVEFORM RECONSTRUCTION DEVICE, WAVEFORM RECONSTRUCTION SYSTEM, AND WAVEFORM RECONSTRUCTION METHOD 审中-公开
    波形重构装置，波形重构系统和波形重建进程

    公开(公告)号：EP2818838A4

    公开(公告)日：2015-11-11

    申请号：EP13751849

    申请日：2013-02-06

    Applicant: UNIV OSAKA

    Inventor： KONISHI TSUYOSHI ,  TAKAHASHI KOJI ,  NAGASHIMA TOMOTAKA

    IPC: G01J11/00 ,  G02F1/365

    CPC classification number: H04B10/07955 ,  G01J11/00 ,  H04B10/25

    Abstract: A waveform reconstruction device (140) includes: a phase-spectrum calculation unit (143) which (i) simulates, for each intensity of an input optical signal assumed to have a given phase spectrum, propagation of the input optical signal through an optical transmission medium, to calculate a power spectrum of an output optical signal, and (ii) performs iterations of simulating the propagation while changing the given phase spectrum to reduce differences between calculated power spectra and measured power spectra of the input optical signal having the intensities, to search for a phase spectrum of the input optical signal; and a waveform reconstruction unit (144) which reconstructs a time waveform of the input optical signal using the phase spectrum found through the search, wherein the phase-spectrum calculation unit (143) changes the given phase spectrum or simulates the propagation, based on a nonlinear optical effect or a dispersion effect.

    METHOD FOR MEASURING LIGHT PHYSICAL CONSTANTS AND DEVICE FOR ESTIMATING LIGHT PHYSICAL CONSTANTS
    2.
    发明公开
    METHOD FOR MEASURING LIGHT PHYSICAL CONSTANTS AND DEVICE FOR ESTIMATING LIGHT PHYSICAL CONSTANTS 审中-公开
    测量光自然常及装置用于测量淡雅的自然常数法

    公开(公告)号：EP2947446A4

    公开(公告)日：2016-08-24

    申请号：EP13871806

    申请日：2013-12-24

    Applicant: UNIV OSAKA

    Inventor： KONISHI TSUYOSHI ,  TAKAHASHI KOJI ,  KAWANISHI KENTARO

    IPC: G01M11/02 ,  G01M11/00

    CPC classification number: G01M11/338 ,  G01M11/3145 ,  G01M11/33 ,  G01M11/333

    Abstract: A light physical constant measurement method includes: virtually dividing an optical transmission medium along a propagation direction to set a plurality of first segments (S106); and estimating light physical constants of the plurality of first segments based on the result of a first propagation simulation that uses a model in which an input optical signal of each of the plurality of intensities propagates sequentially through the plurality of first segments (S108 to S114), and in the estimating of light physical constants of the plurality of first segments, the light physical constants of the plurality of first segments are searched for using an evaluation function of evaluating a difference between a measured power spectrum of an output optical signal and a power spectrum of the output optical signal obtained as a result of the first propagation simulation, to estimate the light physical constants of the plurality of first segments.

    Abstract translation: 一种光物理常数测量方法，包括：虚拟地划分到光传输介质沿一个传播方向设置第一分段（S106）的多元性; 和估计第一片段的基于第一传播模拟的结果做了多个光物理常数使用模型，其中每个强度的多个的输入光信号通过第一分段的多元性（S108至S114）传播按顺序 ，并在第一区段的所述多个光物理常数的估算，第一区段的多个光物理常数中搜索使用在输出光信号的测量功率频谱和功率之间评估的差的评价函数 获得与第一传播模拟的结果的输出光信号，频谱来估计第一片段的多个光物理常数。

    4.
    发明专利
    未知

    公开(公告)号：DE112007002613T5

    公开(公告)日：2009-09-17

    申请号：DE112007002613

    申请日：2007-10-22

    Applicant: UNIV OSAKA

    Inventor： KONISHI TSUYOSHI

    IPC: G02B27/60 ,  G01J11/00 ,  G02F1/01

    Abstract: To provide an optical gating system capable of performing single-shot, parallel, and ultrafast gating equal to or less than a subpicosecond, without depending on coherence. The optical gating system converts signal light to spatial characteristic signal light whose intensity distribution has spatial periodicity, and emits the spatial characteristic signal light to a gate region (13) so as to be obliquely incident on the gate region (13). In a closed state in an opening and closing operation of the gate region (13), a closed moiré fringe pattern (graph 11) is created in the gate region (13) by overlaying the spatial characteristic signal light and spatial characteristic closed light acting in a direction in which an intensity of the spatial characteristic signal light is decreased in the gate region (13). In an open state, an open moiré fringe pattern (graph 12) is created in the gate region (13) by overlaying the spatial characteristic signal light and spatial characteristic open light acting in a direction in which the intensity of the spatial characteristic signal light is increased in the gate region (13).

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