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    PHOTONIC CRYSTAL FIBER ASSEMBLY
    33.
    发明申请
    PHOTONIC CRYSTAL FIBER ASSEMBLY 有权

    公开(公告)号：US20220269012A1

    公开(公告)日：2022-08-25

    申请号：US17744401

    申请日：2022-05-13

    Applicant: NKT Photonics A/S

    Inventor： Thomas Tanggaard ALKESKJOLD ,  Jens Kristian LYNGSØE ,  Christian JAKOBSEN ,  Martin Dybendal MAACK ,  Mattia MICHIELETTO ,  Sidsel Rübner PAPIOR

    IPC: G02B6/38 ,  G02B6/02

    Abstract: A photonic crystal fiber (PCF) assembly including a PCF and at least one ferrule structure. The PCF includes a core region and a cladding region and a first fiber end section with a first fiber end. The ferrule structure is mounted to the first fiber end section. The ferrule structure includes an inner ferrule arrangement and an outer ferrule arrangement surrounding the first fiber end section. The inner ferrule arrangement includes an inner ferrule front section proximally to the first fiber end and an inner ferrule rear section distally to the first fiber end, and each of the sections has an inner diameter and in at least a length thereof fully surrounds the PCF. The inner ferrule rear section is anchored in an anchor length section to the first fiber end section and the inner ferrule front section supports the first fiber end section proximally to the first fiber end.

    Optical Sources
    34.
    发明申请
    Optical Sources 有权

    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.

    Tunable pulse width laser
    38.
    再颁专利
    Tunable pulse width laser 有权

    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.

    LIFETIME EXTENDING AND PERFORMANCE IMPROVEMENTS OF OPTICAL FIBERS VIA LOADING
    40.
    发明申请
    LIFETIME EXTENDING AND PERFORMANCE IMPROVEMENTS OF OPTICAL FIBERS VIA LOADING 审中-公开

    公开(公告)号：US20190258135A1

    公开(公告)日：2019-08-22

    申请号：US16256096

    申请日：2019-01-24

    Applicant: NKT PHOTONICS A/S

    Inventor： Carsten L. THOMSEN

    IPC: G02F1/365 ,  F21V8/00 ,  A61B1/06 ,  H01S3/30 ,  G02B6/02

    Abstract: A method of making a microstructured optical fiber including loading the core and cladding materials of the fiber with hydrogen and deuterium at a loading temperature; annealing the fiber at a selected temperature Tanneal; pumping the fiber with radiation; and reducing the temperature of the fiber and storing the fiber at the reduced temperature before the step of pumping the fiber; and wherein the method allows the hydrogen and the deuterium to become bound to the core material and the cladding material.

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