公开(公告)号：US10441158B2

公开(公告)日：2019-10-15

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

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.

公开(公告)号：US11454763B2

公开(公告)日：2022-09-27

申请号：US17234361

申请日：2021-04-19

Applicant: NKT Photonics A/S

Inventor： Thomas Feuchter ,  Irnis Kubat ,  Timur Iskhakov

IPC: G02B6/28 ,  G02F1/125 ,  F21S41/24 ,  F21S41/16 ,  F21S41/141 ,  F21S41/20 ,  G02B6/43

Abstract: A light source assembly having N outputs, the assembly including: a light source arrangement arranged for supplying light to M inputs, where M an N independently of each other are integers and where M≥2 and M≥N; at least one optical couplers, each having at least one input arm and a plurality of output arms; and an integer number, P, of mode scramblers. The light source arrangement may include a broadband light source and a multimode coupler configured for receiving one or more light beams from the light source arrangement, wherein the one or more light beams being derived from the broadband light source and wherein a mode scrambler is arranged for mode scrambling one of said light beams before it enters the multimode coupler.

公开(公告)号：US11474288B2

公开(公告)日：2022-10-18

申请号：US16610195

申请日：2018-05-02

Applicant: NKT Photonics A/S

Inventor： Thomas Feuchter

IPC: F21V8/00 ,  F21V9/40 ,  F21Y115/30 ,  F21Y115/10 ,  F21S41/24 ,  F21S43/251 ,  B60Q1/00

Abstract: A light system having a light supply arrangement, a Homogenizing Light Pipe (HLP) and a fiber bundle is disclosed. The light supply arrangement includes a light source and is arranged to supply light to an input end of the HLP. The HLP is configured for scrambling the received light and for delivering a beam of light to a common packed input end of the fiber bundle.

公开(公告)号：US09986904B2

公开(公告)日：2018-06-05

申请号：US15283437

申请日：2016-10-02

Applicant: NKT Photonics A/S

Inventor： Carsten L. Thomsen ,  Thomas Vestergaard Andersen ,  Thomas Feuchter

IPC: A61B3/00 ,  A61B3/02 ,  A61B3/10 ,  G02F1/35 ,  H01S5/00 ,  H01S5/065 ,  G02F1/365

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 comprise 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 comprise 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：US11994688B2

公开(公告)日：2024-05-28

申请号：US18339860

申请日：2023-06-22

Applicant: NKT PHOTONICS A/S

Inventor： Dmitri Oulianov ,  Frederik Nielsen ,  Irnis Kubat ,  Thomas Feuchter ,  Timur Iskhakov

IPC: G02B27/28 ,  G02B27/09 ,  G02F1/1335 ,  G02F1/13357

CPC classification number: G02B27/286 ,  G02B27/0961 ,  G02B27/283 ,  G02F1/133526 ,  G02F1/13362

Abstract: A depolarizing homogenizer including one or more lenslet arrays, for providing a plurality of beamlets associated with different respective parts of a received beam. The depolarizing homogenizer includes a depolarizer comprising different areas which affect polarization differently, the depolarizer being positioned to cause alteration of the polarization characteristics of at least some of the plurality of beamlets. A lens is arranged to at least partially overlap the beamlets having the altered polarization characteristics.

公开(公告)号：US10983281B2

公开(公告)日：2021-04-20

申请号：US16609775

申请日：2018-05-02

Applicant: NKT Photonics A/S

Inventor： Thomas Feuchter ,  Irnis Kubat ,  Timur Iskhakov

IPC: G02B6/28 ,  G02F1/125 ,  F21S41/24 ,  F21S41/16 ,  F21S41/141 ,  F21S41/20 ,  G02B6/43

Abstract: A light source assembly having N outputs is disclosed. The assembly comprising: a light source arrangement arranged for supplying light to M inputs, where M an N independently of each other are integers and where M≥2 and M≤N; at least one optical couplers, each having at least one input arm and a plurality of output arms; and an integer number, P, of mode scramblers; The light source arrangement may comprise a broadband light source and a multimode coupler configured for receiving one or more light beams from the light source arrangement, wherein the one or more light beams being derived from the broadband light source and wherein a mode scrambler is arranged for mode scrambling one of said light beams before it enters the multimode coupler.

公开(公告)号：US09841557B2

公开(公告)日：2017-12-12

申请号：US14903762

申请日：2014-07-07

Applicant: NKT PHOTONICS A/S

Inventor： Jeppe Johansen ,  Ole Bang ,  Casper Larsen ,  Thomas Feuchter ,  Carsten L. Thomsen ,  Thomas Vestergaard Andersen

IPC: G02B6/02 ,  G02F1/365 ,  G02F1/35 ,  G01B9/02 ,  G02B6/255 ,  H01S3/067 ,  H01S3/094 ,  H01S3/11

CPC classification number: G02B6/02376 ,  G01B9/02091 ,  G02B6/02214 ,  G02B6/02333 ,  G02B6/02347 ,  G02B6/02361 ,  G02B6/255 ,  G02F1/353 ,  G02F1/365 ,  G02F2001/3528 ,  G02F2202/32 ,  H01S3/06725 ,  H01S3/06729 ,  H01S3/094042 ,  H01S3/094076 ,  H01S3/1106

Abstract: The invention relates to a microstructured optical fiber for generating incoherent supercontinuum light upon feeding of pump light. The microstructured optical fiber has a first section and a second section. A cross-section through the second section perpendicularly to a longitudinal axis of the fiber has a second relative size of microstructure elements and preferably a second pitch that is smaller than a blue edge pitch for the second relative size of microstructure elements. The invention also relates to an incoherent supercontinuum source comprising a microstructured optical fiber according to the invention.

公开(公告)号：US11800972B2

公开(公告)日：2023-10-31

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 ,  G02B27/09

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

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.

公开(公告)号：US11154189B2

公开(公告)日：2021-10-26

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 ,  G02B27/09

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.

公开(公告)号：US10254475B2

公开(公告)日：2019-04-09

申请号：US15800711

申请日：2017-11-01

Applicant: NKT PHOTONICS A/S

Inventor： Jeppe Johansen ,  Ole Bang ,  Casper Larsen ,  Thomas Feuchter ,  Carsten L. Thomsen ,  Thomas Vestergaard Andersen

IPC: G02B6/02 ,  G02F1/35 ,  G01B9/02 ,  G02B6/255 ,  G02F1/365 ,  H01S3/067 ,  H01S3/094 ,  H01S3/11

Abstract: The invention relates to a microstructured optical fiber for generating supercontinuum light upon feeding of pump light. The light can be incoherent light. The microstructured optical fiber has a first section and a second section, where the first and second sections have one or more different features. The invention also relates to a supercontinuum source comprising a microstructured optical fiber according to the invention.