公开(公告)号：US10527907B2

公开(公告)日：2020-01-07

申请号：US14922514

申请日：2015-10-26

Applicant: NKT Photonics A/S

Inventor： Anatoly Grudinin ,  John Clowes ,  Pascal Dupriez ,  Michael Yarrow

IPC: G02F1/35 ,  G01N21/64 ,  G02B21/00 ,  H01S3/00 ,  G02F1/39 ,  G01N21/65 ,  H01S3/16 ,  H01S3/30 ,  H01S3/067

Abstract: A coherent anti-stokes Raman scattering apparatus for imaging a sample comprises an optical output; an optical source arranged to generate a first optical signal at a first wavelength; and a nonlinear element arranged to receive the first optical signal, where the nonlinear element is arranged to cause the first optical signal to undergo four-wave mixing on transmission through the nonlinear element such that a second optical signal at a second wavelength and a third optical signal at a third wavelength are generated, wherein an optical signal pair comprising two of the first, second and third optical signals is provided to the optical output for imaging the sample.

公开(公告)号：USRE50026E1

公开(公告)日：2024-06-25

申请号：US16741186

申请日：2020-01-13

Applicant: NKT Photonics A/S

Inventor： Paulo Almeida ,  John Redvers Clowes ,  Pascal Dupriez ,  Anatoly Borisovich Grudinin

IPC: H01S3/10 ,  H01S3/067 ,  H01S3/1112 ,  H01S3/13 ,  H01S3/00 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/16 ,  H01S3/23

CPC classification number: H01S3/06754 ,  H01S3/1112 ,  H01S3/0057 ,  H01S3/094003 ,  H01S3/0941 ,  H01S3/1618 ,  H01S3/2383 ,  H01S2301/08

Abstract: A method of tuning the time duration of laser output pulses, the method including spectrally dispersing optical pulses and further comprising providing an optical pulse having a time duration and a spectral bandwidth; spectrally dispersing (243, 245) the optical pulse so as to provide a selected change in the time duration of the pulse responsive to the spectral bandwidth of the pulse; outputting (226) an optical output pulse having a first time duration that is responsive to the selected change in time duration; providing another optical pulse; changing the amount of spectral bandwidth of the another optical pulse (272) to be different than that of the optical pulse or changing the amount of spectral dispersion so that spectrally dispersing the another optical pulse provides a change in time duration that is different than the selected change; and outputting (226) another optical output pulse having a second time duration that is responsive to the different change in time duration, the second time duration of the another optical output pulse being different than the first time duration of the optical output pulse.

公开(公告)号：US20240118585A1

公开(公告)日：2024-04-11

申请号：US18310239

申请日：2023-05-01

Applicant: NKT PHOTONICS A/S

Inventor： Anatoly Borisovich Grudinin ,  John Redvers Clowes ,  Pascal Dupriez ,  Michael Yarrow

IPC: G02F1/35 ,  G01N21/64 ,  G01N21/65 ,  G02B21/00 ,  G02F1/39 ,  H01S3/00 ,  H01S3/30

CPC classification number: G02F1/3536 ,  G01N21/6458 ,  G01N21/65 ,  G02B21/0032 ,  G02B21/0076 ,  G02B21/0084 ,  G02F1/3532 ,  G02F1/395 ,  H01S3/0092 ,  H01S3/30 ,  G02F2202/32 ,  H01S3/005 ,  H01S3/067

Abstract: A coherent anti-stokes Raman scattering apparatus for imaging a sample includes an optical output; an optical source arranged to generate a first optical signal at a first wavelength; and a nonlinear element arranged to receive the first optical signal, where the nonlinear element is arranged to cause the first optical signal to undergo four-wave mixing on transmission through the nonlinear element such that a second optical signal at a second wavelength and a third optical signal at a third wavelength are generated, wherein an optical signal pair including two of the first, second and third optical signals is provided to the optical output for imaging the sample.

公开(公告)号：US11675245B2

公开(公告)日：2023-06-13

申请号：US17191401

申请日：2021-03-03

Applicant: NKT PHOTONICS A/S

Inventor： Anatoly Borisovich Grudinin ,  John Redvers Clowes ,  Pascal Dupriez ,  Michael Yarrow

IPC: G02F1/35 ,  G01N21/64 ,  G02B21/00 ,  H01S3/30 ,  G02F1/39 ,  G01N21/65 ,  H01S3/00 ,  H01S3/067 ,  H01S3/16

CPC classification number: G02F1/3536 ,  G01N21/6458 ,  G01N21/65 ,  G02B21/0032 ,  G02B21/0076 ,  G02B21/0084 ,  G02F1/3532 ,  G02F1/395 ,  H01S3/0092 ,  H01S3/30 ,  G01N2021/653 ,  G02F1/3507 ,  G02F1/3528 ,  G02F1/392 ,  G02F2202/32 ,  H01S3/005 ,  H01S3/067 ,  H01S3/06741 ,  H01S3/1618

Abstract: A coherent anti-stokes Raman scattering apparatus for imaging a sample includes an optical output; an optical source arranged to generate a first optical signal at a first wavelength; and a nonlinear element arranged to receive the first optical signal, where the nonlinear element is arranged to cause the first optical signal to undergo four-wave mixing on transmission through the nonlinear element such that a second optical signal at a second wavelength and a third optical signal at a third wavelength are generated, wherein an optical signal pair including two of the first, second and third optical signals is provided to the optical output for imaging the sample.

公开(公告)号：US20210333685A1

公开(公告)日：2021-10-28

申请号：US17191401

申请日：2021-03-03

Applicant: NKT PHOTONICS A/S

Inventor： Anatoly Borisovich Grudinin ,  John Redvers Clowes ,  Pascal Dupriez ,  Michael Yarrow

IPC: G02F1/35 ,  G01N21/64 ,  G02B21/00 ,  G02F1/39 ,  G01N21/65 ,  H01S3/00 ,  H01S3/30

Abstract: A coherent anti-stokes Raman scattering apparatus for imaging a sample includes an optical output; an optical source arranged to generate a first optical signal at a first wavelength; and a nonlinear element arranged to receive the first optical signal, where the nonlinear element is arranged to cause the first optical signal to undergo four-wave mixing on transmission through the nonlinear element such that a second optical signal at a second wavelength and a third optical signal at a third wavelength are generated, wherein an optical signal pair including two of the first, second and third optical signals is provided to the optical output for imaging the sample.

公开(公告)号：USRE47818E1

公开(公告)日：2020-01-14

申请号：US15486547

申请日：2017-04-13

Applicant: NKT Photonics A/S

Inventor： Paulo Almeida ,  John Redvers Clowes ,  Pascal Dupriez ,  Anatoly Borisovich Grudinin

IPC: H01S3/10 ,  H01S3/13 ,  H01S3/11 ,  H01S3/067 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/23 ,  H01S3/00 ,  H01S3/16

Abstract: A method of tuning the time duration of laser output pulses, the method including spectrally dispersing optical pulses and further comprising providing an optical pulse having a time duration and a spectral bandwidth; spectrally dispersing (243, 245) the optical pulse so as to provide a selected change in the time duration of the pulse responsive to the spectral bandwidth of the pulse; outputting (226) an optical output pulse having a first time duration that is responsive to the selected change in time duration; providing another optical pulse; changing the amount of spectral bandwidth of the another optical pulse (272) to be different than that of the optical pulse or changing the amount of spectral dispersion so that spectrally dispersing the another optical pulse provides a change in time duration that is different than the selected change; and outputting (226) another optical output pulse having a second time duration that is responsive to the different change in time duration, the second time duration of the another optical output pulse being different than the first time duration of the optical output pulse.