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    LIFETIME EXTENDING AND PERFORMANCE IMPROVEMENTS OF OPTICAL FIBERS VIA LOADING
    3.
    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

    申请人： NKT PHOTONICS A/S

    发明人： Carsten L. THOMSEN

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

    摘要： 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.

    SUPERCONTINUUM LIGHT SOURCE
    4.
    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

    申请人： NKT PHOTONICS A/S

    发明人： Carsten L. THOMSEN ,  Thomas Vestergaard ANDERSEN ,  Thomas FEUCHTER

    IPC分类号： A61B3/00 ,  G02F1/35

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

    摘要： 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.

    SUPERCONTINUUM LIGHT SOURCE COMPRISING TAPERED MICROSTRUCTURED OPTICAL FIBER
    6.
    发明申请
    SUPERCONTINUUM LIGHT SOURCE COMPRISING TAPERED MICROSTRUCTURED OPTICAL FIBER 审中-公开

    公开(公告)号：US20200326474A1

    公开(公告)日：2020-10-15

    申请号：US16797182

    申请日：2020-02-21

    申请人： NKT PHOTONICS A/S

    发明人： Carsten L. THOMSEN ,  Thomas T. ALKESKJOLD ,  Erik B. THOMSEN

    IPC分类号： G02B6/02 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/00 ,  G02F1/35 ,  H01S3/067 ,  G02B6/036 ,  G02F1/365 ,  G01B9/02 ,  H01S3/11

    摘要： The invention relates to a supercontinuum light source comprising a microstructured optical fiber and a pump light source. The microstructured optical fiber comprises a core and a cladding region surrounding the core, as well as a first fiber length section, a second fiber length section and an intermediate fiber length section between said first and second fiber length sections. The first fiber length section comprises a core with a first characteristic core diameter. The second fiber length section comprises a core with a second characteristic core diameter, smaller than said first characteristic core diameter, where said second characteristic core diameter is substantially constant along said second fiber length section. The intermediate length section of the optical fiber comprises a core which is tapered from said first characteristic core diameter to said second characteristic core diameter over a tapered length.