公开(公告)号：US11221445B2

公开(公告)日：2022-01-11

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 ,  H01S3/113 ,  H01S3/131 ,  H01S3/16

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.

公开(公告)号：US10441158B2

公开(公告)日：2019-10-15

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 ,  A61B3/02 ,  A61B3/10 ,  G02F1/35 ,  G02F1/365 ,  H01S5/00 ,  H01S5/065 ,  G02B27/09

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.

公开(公告)号：US09551647B2

公开(公告)日：2017-01-24

申请号：US13648697

申请日：2012-10-10

申请人： NKT PHOTONICS A/S

发明人： Carsten L. Thomsen ,  Frederik Donbaek Nielsen ,  Sascha Hauser ,  Eberhard Riedle ,  Maximilian Bradler

IPC分类号： G02F1/35 ,  G01N21/00 ,  G01N21/25 ,  H01S3/09

CPC分类号： G01N21/00 ,  G01N21/255 ,  G02F1/3501 ,  G02F2001/3528 ,  H01S3/09

摘要： The disclosure relates to a tunable optical light source spanning the UV-range and possible also the visible and near-IR wavelengths. The tunable optical light source includes an input light source, a focusing element, a non-linear crystal arranged to convert the frequency of at least part of the output spectrum of the super continuum source, and a holding unit for the non-linear crystal. The input light source is a super continuum light source with a spectral bandwidth of at least about 300 nm and the holding unit is adjustable for changing the frequency converted output wavelength of the non-linear crystal wfc such that the lowest obtainable output wavelength wUV of said tunable light source is ultraviolet. The disclosure further relates to an illumination source and an optical measurement system.

摘要翻译： 本公开涉及跨越UV范围的可调谐光学光源以及可能的和近红外波长的可能的光学光源。 可调谐光源包括输入光源，聚焦元件，布置成转换超连续体源的输出光谱的至少一部分的频率的非线性晶体，以及用于非线性晶体的保持单元。 输入光源是具有至少约300nm的光谱带宽的超连续光源，并且保持单元可调节以改变非线性晶体wfc的频率转换输出波长，使得所述的非线性晶体wfc的最低可获得输出波长wUV 可调光源是紫外线。 本公开还涉及照明源和光学测量系统。

公开(公告)号：US10928584B2

公开(公告)日：2021-02-23

申请号：US16786027

申请日：2020-02-10

申请人： NKT PHOTONICS A/S

发明人： Thomas Tanggaard Alkeskjold ,  Casper Laur Byg ,  Christian Jakobsen ,  Jens Kristian Lyngsøe ,  Kim G. Jespersen ,  Jeppe Johansen ,  Martin Dybendal Maack ,  Martin Erland Vestergaard Pedersen ,  Carsten L. Thomsen

IPC分类号： G02B6/036 ,  C03B37/027 ,  G02B6/02 ,  C03C25/607 ,  C03C25/106 ,  C03C13/04 ,  C03B37/10 ,  C03C25/1065

摘要： A Photonic Crystal Fiber (PCF) a method of its production and a supercontinuum light source comprising such PCF. The PCF has a longitudinal axis and includes a core extending along the length of said longitudinal axis and a cladding region surrounding the core. At least the cladding region includes a plurality of microstructures in the form of inclusions extending along the longitudinal axis of the PCF in at least a microstructured length section. In at least a degradation resistant length section of the microstructured length section the PCF includes hydrogen and/or deuterium. In at least the degradation resistant length section the PCF further includes a main coating surrounding the cladding region, which main coating is hermetic for the hydrogen and/or deuterium at a temperature below Th, wherein Th is at least about 50° C., preferably 50° C.

公开(公告)号：US10557987B2

公开(公告)日：2020-02-11

申请号：US16254884

申请日：2019-01-23

申请人： NKT PHOTONICS A/S

发明人： Thomas Tanggaard Alkeskjold ,  Casper Laur Byg ,  Christian Jakobsen ,  Jens Kristian Lyngsøe ,  Kim G. Jespersen ,  Jeppe Johansen ,  Martin Dybendal Maack ,  Martin Erland Vestergaard Pedersen ,  Carsten L. Thomsen

IPC分类号： G02B6/036 ,  G02B6/02 ,  G02B6/14 ,  C03C25/106 ,  G02F1/365 ,  C03B37/027 ,  C03C25/607 ,  C03C25/1065 ,  G02F1/35 ,  C03B37/10 ,  C03C13/04

摘要： A Photonic Crystal Fiber (PCF) a method of its production and a supercontinuum light source comprising such PCF. The PCF has a longitudinal axis and includes a core extending along the length of said longitudinal axis and a cladding region surrounding the core. At least the cladding region includes a plurality of microstructures in the form of inclusions extending along the longitudinal axis of the PCF in at least a microstructured length section. In at least a degradation resistant length section of the microstructured length section the PCF includes hydrogen and/or deuterium. In at least the degradation resistant length section the PCF further includes a main coating surrounding the cladding region, which main coating is hermetic for the hydrogen and/or deuterium at a temperature below Th, wherein Th is at least about 50° C., preferably 50° C.

公开(公告)号：US09958606B2

公开(公告)日：2018-05-01

申请号：US15362531

申请日：2016-11-28

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 ,  G02B6/036 ,  G02F1/365 ,  H01S3/067 ,  G01B9/02 ,  H01S3/11 ,  H01S3/113 ,  H01S3/131 ,  H01S3/16

CPC分类号： G02B6/02376 ,  G01B9/02007 ,  G01B9/02091 ,  G02B6/02214 ,  G02B6/02333 ,  G02B6/02338 ,  G02B6/02347 ,  G02B6/03633 ,  G02F1/353 ,  G02F1/365 ,  G02F2001/3528 ,  G02F2202/32 ,  H01S3/0092 ,  H01S3/06725 ,  H01S3/06741 ,  H01S3/06745 ,  H01S3/094076 ,  H01S3/09415 ,  H01S3/11 ,  H01S3/113 ,  H01S3/1312 ,  H01S3/1611

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.

公开(公告)号：US11048145B2

公开(公告)日：2021-06-29

申请号：US16658747

申请日：2019-10-21

申请人： NKT PHOTONICS A/S

发明人： Carsten L. Thomsen

IPC分类号： G02B6/02 ,  B05D3/02 ,  H01S3/00 ,  G02F1/365 ,  A61B1/06 ,  F21V8/00 ,  H01S3/30 ,  G02B6/42 ,  G02B6/44 ,  G02F1/35

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.

公开(公告)号：US10281797B2

公开(公告)日：2019-05-07

申请号：US15963694

申请日：2018-04-26

申请人： NKT PHOTONICS A/S

发明人： Carsten L. Thomsen

IPC分类号： G02B6/02 ,  B05D3/02 ,  H01S3/00 ,  G02F1/365 ,  A61B1/06 ,  F21V8/00 ,  H01S3/30 ,  G02B6/42 ,  G02B6/44 ,  G02F1/35

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.

公开(公告)号：US10228510B2

公开(公告)日：2019-03-12

申请号：US15537005

申请日：2015-12-15

申请人： NKT PHOTONICS A/S

发明人： Thomas Tanggaard Alkeskjold ,  Casper Laur Byg ,  Christian Jakobsen ,  Jens Kristian Lyngsøe ,  Kim G. Jespersen ,  Jeppe Johansen ,  Martin Dybendal Maack ,  Martin Erland Vestergaard Pedersen ,  Carsten L. Thomsen

IPC分类号： G02B6/36 ,  C03C13/04 ,  G02B6/14 ,  G02B6/02 ,  C03C25/60 ,  G02F1/365 ,  G02F1/35 ,  G02B6/036 ,  C03C25/106 ,  C03C25/1065 ,  C03B37/027 ,  C03B37/10 ,  C03C25/607

摘要： The invention concerns a Photonic Crystal Fiber (PCF) a method of its production and a supercontinuum light source comprising such PCF. The PCF has a longitudinal axis and comprises a core extending along the length of said longitudinal axis and a cladding region surrounding the core. At least the cladding region comprises a plurality of microstructures in the form of inclusions extending along the longitudinal axis of the PCF in at least a microstructured length section. In at least a degradation resistant length section of the microstructured length section the PCF comprises hydrogen and/or deuterium. In at least the degradation resistant length section the PCF further comprises a main coating surrounding the cladding region, which main coating is hermetic for the hydrogen and/or deuterium at a temperature below Th, wherein Th is at least about 50° C., preferably 50° C.

公开(公告)号：US20190004396A1

公开(公告)日：2019-01-03

申请号：US15963694

申请日：2018-04-26

申请人： NKT PHOTONICS A/S

发明人： Carsten L. Thomsen

IPC分类号： G02F1/365 ,  H01S3/30 ,  G02B6/02 ,  F21V8/00 ,  A61B1/06 ,  G02B6/42 ,  G02B6/44 ,  G02F1/35

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.