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    WAVELENGTH-STABILISED NARROW-LINEWIDTH MODE-LOCKED PICOSECOND LASER SYSTEM
    1.
    发明申请
    WAVELENGTH-STABILISED NARROW-LINEWIDTH MODE-LOCKED PICOSECOND LASER SYSTEM 有权

    公开(公告)号：US20250105581A1

    公开(公告)日：2025-03-27

    申请号：US18729527

    申请日：2023-01-16

    Applicant: NKT PHOTONICS A/S

    Inventor： Thomas Vestergaard ANDERSEN

    IPC: H01S3/137 ,  G01J3/28 ,  G01K1/14 ,  H01S3/00 ,  H01S3/067 ,  H01S3/1118 ,  H01S3/16

    Abstract: A wavelength-stabilised narrow-linewidth mode-locked picosecond laser system comprises a laser cavity which includes an amplifier, a mode-locking element, and a fiber Bragg grating which acts as a narrowband reflector. The system includes a mount to which the fiber Bragg grating is mounted under tension, a tension control system to adjust the tension, and a measurement device to provide a measurement output related to a current operating wavelength of the fiber Bragg grating. A microcontroller or other controller wavelength-stabilises the laser by controlling the tension control system responsive to the measured wavelength.

    LIGHT SOURCE
    2.
    发明申请
    LIGHT SOURCE 有权

    公开(公告)号：US20230033071A1

    公开(公告)日：2023-02-02

    申请号：US17786775

    申请日：2020-12-21

    Applicant: NKT PHOTONICS A/S

    Inventor： Thomas Vestergaard ANDERSEN

    IPC: G02F1/35 ,  G02F1/365 ,  H01S3/00

    Abstract: A light source, including: a pulse generator for providing an initial sequence of light pulses, the pulse generator including an optical source for producing optical pulses; and a modulator in communication with the optical source for increasing or decreasing the selected number of pulses provided by the pulse generator in the selected time period; first and second optical arms, for propagating, respectively, first and second sequences of light pulses, wherein the first optical arm includes a first manipulator configured to generate the first sequence of light pulses from the initial sequence of light pulses, wherein the light source includes a nonlinear optical element arranged to receive the first sequence of light pulses or the second sequence of light pulses, and an optical switch arranged to switch either the first sequence of light pulses or the second sequence of light pulses for reception by the nonlinear optical element.

    SUPERCONTINUUM LIGHT SOURCE
    3.
    发明申请
    SUPERCONTINUUM LIGHT SOURCE 审中-公开

    公开(公告)号：US20180360302A1

    公开(公告)日：2018-12-20

    申请号：US15980177

    申请日：2018-05-15

    Applicant: NKT PHOTONICS A/S

    Inventor： Carsten L. THOMSEN ,  Thomas Vestergaard ANDERSEN ,  Thomas FEUCHTER

    IPC: A61B3/00 ,  G02F1/35

    CPC classification number: A61B3/0008 ,  A61B3/1005 ,  A61B3/102 ,  G02B27/0927 ,  G02F1/35 ,  G02F1/3501 ,  G02F1/353 ,  G02F1/365 ,  G02F2001/3503 ,  G02F2001/3528 ,  H01S5/0092 ,  H01S5/0657

    Abstract: A supercontinuum light source can include a seed laser arranged to provide seed pulses with a pulse frequency Fseed; a pulse frequency multiplier (PFM) arranged to multiply the seed pulses by converting pulses having the pulse frequency Fseed to pump pulses with a pulse frequency Fpump, where Fpump is larger than Fseed; and a non-linear element arranged to receive said pump pulses and convert said pump pulses to pulses of supercontinuum light. The PFM can further include a splitter for splitting pulses into first and second sub beams each having the same pulse frequency, where the PFM is configured such that the sub beams experience different delays; and a combiner for combining said first and second sub beams into a beam having the pulse frequency that is greater than said same pulse frequency. The splitter can have an uneven splitter ratio. The disclosure includes other embodiments as well.

    LIGHT SOURCE
    5.
    发明申请
    LIGHT SOURCE 有权

    公开(公告)号：US20250013120A1

    公开(公告)日：2025-01-09

    申请号：US18788434

    申请日：2024-07-30

    Applicant: NKT PHOTONICS A/S

    Inventor： Thomas Vestergaard ANDERSEN

    IPC: G02F1/365 ,  G01J3/10 ,  H01S3/00 ,  H01S3/10 ,  H01S3/13

    Abstract: A light source including: a pulse generator for providing a first sequence of light pulses, the first sequence of light pulses including a first number of light pulses within a predetermined time period, a manipulator configured to generate a second sequence of light pulses from the first sequence of light pulses, the second sequence of light pulses having a second number of light pulses within the predetermined time period, the second number being different from the first number, and a nonlinear optical element arranged to receive the second sequence of light pulses.

    LIGHT SOURCE
    6.
    发明公开
    LIGHT SOURCE 审中-公开

    公开(公告)号：US20230375897A1

    公开(公告)日：2023-11-23

    申请号：US17786833

    申请日：2020-12-21

    Applicant: NKT PHOTONICS A/S

    Inventor： Thomas Vestergaard ANDERSEN

    IPC: G02F1/365 ,  G02F1/35 ,  H01S3/10

    CPC classification number: G02F1/365 ,  G02F1/3528 ,  H01S3/1001 ,  H01S3/10038

    Abstract: A light source, including: a pulse generator for providing an initial sequence of light pulses, the initial sequence of light pulses including an initial number of light pulses within a predetermined time period, first and second optical arms, for propagating, respectively, first and second sequences of light pulses, each derived from the initial sequence of light pulses, wherein the first optical arm includes a first manipulator configured to generate the first sequence of light pulses from the initial sequence of light pulses, wherein the light source includes a nonlinear optical element arranged to receive the first sequence of light pulses or the second sequence of light pulses, and an optical switch arranged to switch that either the first sequence of light pulses or the second sequence of light pulses is received by the nonlinear optical element.

    SUPERCONTINUUM LIGHT SOURCE
    7.
    发明申请
    SUPERCONTINUUM LIGHT SOURCE 有权

    公开(公告)号：US20220233067A1

    公开(公告)日：2022-07-28

    申请号：US17489254

    申请日：2021-09-29

    Applicant: NKT PHOTONICS A/S

    Inventor： Carsten L. THOMSEN ,  Thomas Vestergaard ANDERSEN ,  Thomas FEUCHTER

    IPC: A61B3/00 ,  G02F1/35 ,  A61B3/10 ,  G02F1/365 ,  H01S5/00 ,  H01S5/065

    Abstract: A supercontinuum light source can include a seed laser arranged to provide seed pulses with a pulse frequency Fseed; a pulse frequency multiplier (PFM) arranged to multiply the seed pulses by converting pulses having the pulse frequency Fseed to pump pulses with a pulse frequency Fpump, where Fpump is larger than Fseed; and a non-linear element arranged to receive said pump pulses and convert said pump pulses to pulses of supercontinuum light. The PFM can further include a splitter for splitting pulses into first and second sub beams each having the same pulse frequency, where the PFM is configured such that the sub beams experience different delays; and a combiner for combining said first and second sub beams into a beam having the pulse frequency that is greater than said same pulse frequency. The splitter can have an uneven splitter ratio.

    SUPERCONTINUUM LIGHT SOURCE
    8.
    发明申请
    SUPERCONTINUUM LIGHT SOURCE 审中-公开

    公开(公告)号：US20200154993A1

    公开(公告)日：2020-05-21

    申请号：US16581912

    申请日：2019-09-25

    Applicant: NKT PHOTONICS A/S

    Inventor： Carsten L. THOMSEN ,  Thomas Vestergaard ANDERSEN ,  Thomas FEUCHTER

    IPC: A61B3/00 ,  G02F1/35 ,  A61B3/10 ,  G02F1/365 ,  H01S5/00 ,  H01S5/065

    Abstract: A supercontinuum light source can include a seed laser arranged to provide seed pulses with a pulse frequency Fseed; a pulse frequency multiplier (PFM) arranged to multiply the seed pulses by converting pulses having the pulse frequency Fseed to pump pulses with a pulse frequency Fpump, where Fpump is larger than Fseed; and a non-linear element arranged to receive said pump pulses and convert said pump pulses to pulses of supercontinuum light. The PFM can further include a splitter for splitting pulses into first and second sub beams each having the same pulse frequency, where the PFM is configured such that the sub beams experience different delays; and a combiner for combining said first and second sub beams into a beam having the pulse frequency that is greater than said same pulse frequency. The splitter can have an uneven splitter ratio.

    LIGHT SOURCE
    10.
    发明申请
    LIGHT SOURCE 有权

    公开(公告)号：US20250076729A1

    公开(公告)日：2025-03-06

    申请号：US18952250

    申请日：2024-11-19

    Applicant: NKT Photonics A/S

    Inventor： Thomas Vestergaard ANDERSEN

    IPC: G02F1/365 ,  G01J3/10 ,  H01S3/00 ,  H01S3/10 ,  H01S3/13

    Abstract: A light source including: a pulse generator for providing a first sequence of light pulses, the first sequence of light pulses including a first number of light pulses within a predetermined time period, a manipulator configured to generate a second sequence of light pulses from the first sequence of light pulses, the second sequence of light pulses having a second number of light pulses within the predetermined time period, the second number being different from the first number, and a nonlinear optical element arranged to receive the second sequence of light pulses.

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