公开(公告)号：US20220350070A1

公开(公告)日：2022-11-03

申请号：US17865761

申请日：2022-07-15

Applicant: NKT Photonics A/S

Inventor： Thomas FEUCHTER

IPC: F21V8/00 ,  F21V9/40

Abstract: A light system having a light supply arrangement, a Homogenizing Light Pipe (HLP) and a fiber bundle. 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：US20220342148A1

公开(公告)日：2022-10-27

申请号：US17856415

申请日：2022-07-01

Applicant: NKT Photonics A/S

Inventor： 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: G02B6/036 ,  C03C25/106 ,  C03C25/1065 ,  C03B37/027 ,  C03B37/10 ,  G02B6/02 ,  C03C13/04 ,  C03C25/607 ,  G02B6/14 ,  G02F1/365

Abstract: 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：US20220326433A1

公开(公告)日：2022-10-13

申请号：US17545509

申请日：2021-12-08

Applicant: NKT Photonics A/S

Inventor： Carsten L. THOMSEN ,  Thomas T. ALKESKJOLD ,  Erik B. THOMSEN

IPC: G02B6/02 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/00 ,  G02F1/35 ,  H01S3/067 ,  G02B6/036 ,  G02F1/365 ,  G01B9/02001 ,  G01B9/02091 ,  H01S3/11

Abstract: A microstructured optical fiber for generating supercontinuum light. The optical fiber includes a core and a cladding region surrounding the core. The optical fiber includes a first fiber length section, a second fiber length section as well as an intermediate fiber length section between said first and second fiber length sections. The first fiber length section has a core with a first characteristic core diameter larger than about 7 μm. The second fiber length section has a core with a second characteristic core diameter, smaller than said first characteristic core diameter. The intermediate length section of the optical fiber includes a core which is tapered from said first characteristic core diameter to the second characteristic core diameter over a tapered length. Also, a supercontinuum light source including an optical fiber and a pump light source.

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：USD960218S1

公开(公告)日：2022-08-09

申请号：US29782604

申请日：2021-05-07

Applicant: NKT Photonics A/S

Designer： Johannes Anders Smith

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.

公开(公告)号：US11360274B2

公开(公告)日：2022-06-14

申请号：US17316645

申请日：2021-05-10

Applicant: NKT Photonics A/S

Inventor： Thomas Tanggaard Alkeskjold ,  Jens Kristian Lyngsoe ,  Christian Jakobsen ,  Martin Dybendal Maack ,  Mattia Michieletto ,  Sidsel Rubner Papior

IPC: G02B6/38 ,  G02B6/02 ,  G02B6/42

Abstract: A photonic crystal fiber (PCF) assembly including a PCF and at least one ferrule structure. The PCF includes a core region and a cladding region and a first fiber end section with a first fiber end. The ferrule structure is mounted to the first fiber end section. The ferrule structure includes an inner ferrule arrangement and an outer ferrule arrangement surrounding the first fiber end section. The inner ferrule arrangement includes an inner ferrule front section proximally to the first fiber end and an inner ferrule rear section distally to the first fiber end, and each of the sections has an inner diameter and in at least a length thereof fully surrounds the PCF. The inner ferrule rear section is anchored in an anchor length section to the first fiber end section and the inner ferrule front section supports the first fiber end section proximally to the first fiber end.

公开(公告)号：US10989866B2

公开(公告)日：2021-04-27

申请号：US16701690

申请日：2019-12-03

Applicant: NKT Photonics A/S

Inventor： Jens Kristian Lyngsøe ,  Christian Jakobsen ,  Mattia Michieletto

IPC: G02B6/02 ,  G02B6/42

Abstract: A hollow core photonic crystal fiber (PCF) including an outer cladding region and seven hollow tubes surrounded by the outer cladding region. Each of the hollow tubes is fused to the outer cladding to form a ring defining an inner cladding region and a hollow core region surrounded by the inner cladding region. The hollow tubes are not touching each other, but are arranged with distance to adjacent hollow tubes. The hollow tubes each have an average outer diameter d2 and an average inner diameter d1, wherein d1/d2 is equal to or larger than about 0.8, such as equal to or larger than about 0.85, such as equal to or larger than about 0.9. Also, a laser system.

公开(公告)号：US10928584B2

公开(公告)日：2021-02-23

申请号：US16786027

申请日：2020-02-10

Applicant: NKT PHOTONICS A/S

Inventor： 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: G02B6/036 ,  C03B37/027 ,  G02B6/02 ,  C03C25/607 ,  C03C25/106 ,  C03C13/04 ,  C03B37/10 ,  C03C25/1065

Abstract: 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：US20200292914A1

公开(公告)日：2020-09-17

申请号：US16733739

申请日：2020-01-03

Applicant: NKT PHOTONICS A/S

Inventor： Anatoly Borisovich GRUDININ ,  John Redvers CLOWES ,  Pascal DUPRIEZ ,  Michael YARROW

IPC: G02F1/35 ,  G01N21/64 ,  G02B21/00 ,  G02F1/39 ,  G01N21/65 ,  H01S3/00 ,  H01S3/30

Abstract: A coherent anti-stokes Raman scattering apparatus for imaging a sample includes an optical output; an optical source arranged to generate a first optical signal at a first wavelength; and a nonlinear element arranged to receive the first optical signal, where the nonlinear element is arranged to cause the first optical signal to undergo four-wave mixing on transmission through the nonlinear element such that a second optical signal at a second wavelength and a third optical signal at a third wavelength are generated, wherein an optical signal pair including two of the first, second and third optical signals is provided to the optical output for imaging the sample.