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：USRE50238E1

公开(公告)日：2024-12-17

申请号：US17574175

申请日：2022-01-12

Applicant: NKT PHOTONICS A/S

Inventor： Carsten L. Thomsen ,  Thomas Vestergaard Andersen

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

Abstract: A supercontinuum light source includes a microstructured optical fiber, and a feeding unit arranged for feeding pump pulses to the microstructured optical fiber, wherein the feeding unit comprises a picosecond laser and one or more amplifiers, wherein the microstructured optical fiber is a silica fiber wherein at least a part of the core being of silica or doped silica, and including a core including core material and a cladding surrounding the core, and at least the core material is loaded with deuterium to have an OD absorption peak around 1870 nm, wherein the feeding unit is spliced to the microstructured optical fiber.

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：US12085835B2

公开(公告)日：2024-09-10

申请号：US17786904

申请日：2020-12-21

Applicant: NKT PHOTONICS A/S

Inventor： Thomas Vestergaard Andersen

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

CPC classification number: G02F1/365 ,  G01J3/10 ,  H01S3/0092 ,  H01S3/10046 ,  H01S3/1301

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.

公开(公告)号：US12038668B2

公开(公告)日：2024-07-16

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

CPC classification number: G02F1/3528 ,  G02F1/365 ,  H01S3/0085 ,  H01S3/0092 ,  G02F2201/20 ,  G02F2201/205

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.

公开(公告)号：US20240041313A1

公开(公告)日：2024-02-08

申请号：US18476520

申请日：2023-09-28

Applicant: NKT PHOTONICS A/S

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

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

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

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：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：US20250009221A1

公开(公告)日：2025-01-09

申请号：US18890939

申请日：2024-09-20

Applicant: NKT Photonics A/S

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

IPC: A61B3/00 ,  A61B3/10 ,  G02B27/09 ,  G02F1/35 ,  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.

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.