公开(公告)号：US20220155237A1

公开(公告)日：2022-05-19

申请号：US17440896

申请日：2020-03-25

申请人： OSAKA UNIVERSITY

发明人： Tsuyoshi KONISHI

IPC分类号： G01N21/88 ,  G01J3/18 ,  G01J3/42 ,  G01N21/31

摘要： An optical detection device is an optical detection device that detects a desired wavelength component included in input light, and includes: a spectrometer including, for instance, a diffraction grating that receives the input light as an input and outputs an alignment of spectra each of which is a duplication of a spectrum of the input light; a second slit array including an array of three or more slits that pass light beams of wavelengths at three or more locations in the alignment of the spectra that are output from the spectrometer; and an imaging element composed of an array of pixels that receive the light beams, having passed through the second slit array, each of the light beams having three or more wavelength components. At least two pitches between slits are different in the array of the three or more slits included in the second slit array.

公开(公告)号：US20220390772A1

公开(公告)日：2022-12-08

申请号：US17769928

申请日：2020-09-30

申请人： OSAKA UNIVERSITY

发明人： Tsuyoshi KONISHI ,  Yuta KAIHORI

IPC分类号： G02F1/01 ,  G02F2/00

摘要： An arbitrary waveform generation device is an arbitrary waveform generation device that generates, from an arbitrary waveform of a first electrical signal, an arbitrary waveform of a second electrical signal having a frequency higher than a frequency of the first electrical signal, and includes: a modulator that modulates, with the first electrical signal, an optical carrier wave which is dispersed to have a central wavelength that varies with time; a dispersion compensator that performs dispersion compensation on the optical carrier wave modulated with the first electrical signal; and a photoelectric converter that converts the optical carrier wave which has been dispersion-compensated into an electrical signal to generate the second electrical signal.

公开(公告)号：US20180073926A1

公开(公告)日：2018-03-15

申请号：US15812049

申请日：2017-11-14

申请人： OSAKA UNIVERSITY

发明人： Tsuyoshi KONISHI ,  Takema SATOH ,  Tomotaka NAGASHIMA

IPC分类号： G01J3/457 ,  G01J3/18 ,  G02B6/12 ,  G01J3/02 ,  G01J3/28

CPC分类号： G01J3/457 ,  G01J3/0297 ,  G01J3/18 ,  G01J3/2803 ,  G01J2003/1861 ,  G01J2003/2866 ,  G02B6/12

摘要： A light wavelength measurement method of measuring a wavelength of target light includes: receiving target light on a second dispersion device that disperses the target light into a plurality of second beams which reach a plurality of positions corresponding to the wavelength of the target light; and measuring the wavelength of the target light, by using the plurality of the second beams as a vernier scale for measuring the wavelength of the target light within a wavelength range specified by a main scale.

公开(公告)号：US20180081202A1

公开(公告)日：2018-03-22

申请号：US15554300

申请日：2016-02-16

申请人： OSAKA UNIVERSITY

发明人： Tsuyoshi KONISHI

IPC分类号： G02F1/01 ,  G02F7/00 ,  G02B6/293

CPC分类号： G02F1/011 ,  G02B6/2938 ,  G02F7/00 ,  G02F2203/26

摘要： An optical quantizer including: a first shaping unit which performs at least intensity modulation of the sampling optical pulses using an analog signal to generate first optical pulses having a spectrum in which intensity is flat in a spectrum axis direction; a second shaping unit which performs spectrum shaping of the sampling optical pulses to generate second optical pulses having a spectrum in which intensity increases or decreases monotonously in the spectrum axis direction; a phase shifter which shifts a phase of optical pulses input to one of the first shaping unit and the second shaping unit so that a phase difference between the first optical pulses and the second optical pulses becomes a predetermined phase difference; an interference device which causes interference between the first optical pulses and the second optical pulses; and a wavelength demultiplexer which demultiplexes optical pulses output from the interference device into light of wavebands.

公开(公告)号：US20160033331A1

公开(公告)日：2016-02-04

申请号：US14775321

申请日：2014-03-10

申请人： OSAKA UNIVERSITY

发明人： Tsuyoshi KONISHI ,  Takema SATOH ,  Tomotaka NAGASHIMA

IPC分类号： G01J3/457 ,  G01J3/18

CPC分类号： G01J3/457 ,  G01J3/0297 ,  G01J3/18 ,  G01J3/2803 ,  G01J2003/1861 ,  G01J2003/2866 ,  G02B6/12

摘要： A light wavelength measurement method of measuring a wavelength of target light includes: receiving target light on a second dispersion device that disperses the target light into a plurality of second beams which reach a plurality of positions corresponding to the wavelength of the target light (S106, S202); and measuring the wavelength of the target light, by using the plurality of the second beams as a vernier scale for measuring the wavelength of the target light within a wavelength range specified by a main scale (S108, S204).

摘要翻译： 测量目标光的波长的光波长测量方法包括：在将目标光分散成多个第二光束的第二色散装置上接收目标光，所述第二光束到达对应于目标光的波长的多个位置（S106， S202）; 并且通过使用多个第二光束作为用于测量由主刻度指定的波长范围内的目标光的波长的游标（S108，S204）来测量目标光的波长。

公开(公告)号：US20230213384A1

公开(公告)日：2023-07-06

申请号：US18008257

申请日：2021-06-22

申请人： OSAKA UNIVERSITY

发明人： Tsuyoshi KONISHI ,  Ryohei KAMIKAWA ,  Yu YAMASAKI

IPC分类号： G01J3/12 ,  G01J11/00 ,  H04B10/67

CPC分类号： G01J3/12 ,  G01J11/00 ,  H04B10/67

摘要： An optical signal detection system includes: a nonlinear converter that nonlinearly converts a plurality of first optical signals into a plurality of second optical signals, and also a third optical signal into a fourth optical signal; a spectrometer that obtains each of a plurality of first spectral data items from a different one of the plurality of second optical signals, and also a third spectral data item from the fourth optical signal; and a detection device that detects the third optical signal and outputs a detection result. The detection device includes: an analyzer that performs sparse principal component analysis on the plurality of first spectral data items to generate a plurality of second spectral data items; and a detector that compares the third spectral data item with each of the plurality of second spectral data items, and detects the third optical signal based on the result of the comparison.

公开(公告)号：US20190301938A1

公开(公告)日：2019-10-03

申请号：US16316928

申请日：2017-07-04

申请人： OSAKA UNIVERSITY

发明人： Tsuyoshi KONISHI

IPC分类号： G01J3/45 ,  G01J9/02

摘要： A spectroscope for measuring a spectrum of input light includes a fringe former that forms first fringes having a first pitch by splitting the input light, a diffraction grating that disperses each of the first fringes, a moire pattern former that forms a moire pattern by overlaying the first fringes that have been dispersed, on second fringes having a second pitch different from the first pitch, and an image pickup device that measures the spectrum of the input light by detecting the moire pattern. At least one of the fringe former and the moire pattern former includes a cylindrical lens array.

公开(公告)号：US20150362404A1

公开(公告)日：2015-12-17

申请号：US14761955

申请日：2013-12-24

申请人： OSAKA UNIVERSITY

发明人： Tsuyoshi KONISHI ,  Koji TAKAHASHI ,  Kentaro KAWANISHI

IPC分类号： G01M11/00

CPC分类号： G01M11/338 ,  G01M11/3145 ,  G01M11/33 ,  G01M11/333

摘要： A light physical constant measurement method includes: virtually dividing an optical transmission medium along a propagation direction to set a plurality of first segments; 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, 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.

摘要翻译： 光物理常数测量方法包括：沿传播方向虚拟地划分光传输介质以设置多个第一段; 以及基于使用其中所述多个强度中的每一个的输入光信号顺序地通过所述多个第一段传播的模型的第一传播模拟的结果估计所述多个第一段的光物理常数，并且在所述估计中 多个第一段的光的物理常数中的多个第一段的光物理常数使用评估功能来评估输出光信号的测量功率谱与输出光学的功率谱之间的差异 作为第一传播模拟的结果获得的信号，以估计多个第一段的光物理常数。