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公开(公告)号：US11474293B2
公开(公告)日：2022-10-18
申请号：US17213653
申请日：2021-03-26
Applicant: NKT Photonics A/S
Inventor： Jens Kristian Lyngsøe , Christian Jakobsen , Mattia Michieletto
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.
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公开(公告)号：USD959530S1
公开(公告)日：2022-08-02
申请号：US35508838
申请日：2020-01-31
Applicant: NKT Photonics A/S
Designer： Johannes Anders Smith
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公开(公告)号：US20220066285A1
公开(公告)日：2022-03-03
申请号：US17361232
申请日：2021-06-28
Applicant: NKT PHOTONICS A/S
Inventor： Carsten L. THOMSEN
Abstract: 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.
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公开(公告)号：US20220011501A1
公开(公告)日：2022-01-13
申请号：US17213653
申请日：2021-03-26
Applicant: NKT Photonics A/S
Inventor： Jens Kristian LYNGSØE , Christian JAKOBSEN , Mattia MICHIELETTO
IPC: G02B6/02
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.
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公开(公告)号：US20220006261A1
公开(公告)日：2022-01-06
申请号：US17479373
申请日：2021-09-20
Applicant: NKT PHOTONICS A/S
Inventor： Jens E. PEDERSEN , Poul VARMING , Christian V. POULSEN , Thomas O. FAGERHOJ , Bjarke GOTH , Henrik SORENSEN
IPC: H01S5/0687 , H01S5/065 , H01S5/14 , H01S5/02251 , G01B9/02 , H01S3/23
Abstract: A laser device includes a laser configured to generate laser light and a laser control module configured to receive at least a portion of the laser light generated by the laser, to generate a control signal and to feed the control signal back to the laser for stabilizing the frequency, wherein the laser control module includes a tunable frequency discriminating element which is preferably continuously frequency tunable, and where the laser control module is placed outside the laser cavity.
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Patent Agency Ranking
公开(公告)号：US20210382230A1
公开(公告)日：2021-12-09
申请号：US17406646
申请日：2021-08-19
Applicant: NKT PHOTONICS A/S
Inventor： Johannes WEIRICH , Martin Dybendal MAACK
Abstract: A delivery fiber assembly suitable for delivering broad band light and including a delivery fiber and a connector member. The delivery fiber has a length, an input end for launching light, and a delivery end. The delivery fiber includes along its length a core region and a cladding region surrounding the core region, the cladding region includes a cladding background material having a refractive index Nbg and a plurality of microstructures in the form of inclusions of solid material having refractive index up to Ninc and extending in the length of the longitudinal axis of the delivery fiber, wherein Ninc
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117.发明申请公开(公告)号：US20210323856A1
公开(公告)日：2021-10-21
申请号：US17356620
申请日：2021-06-24
Applicant: NKT Photonics A/S
Inventor： Harald Roager SIMONSEN , Christian JAKOBSEN
IPC: C03B37/012 , C03B37/027 , G02B6/032 , C03B37/025
Abstract: A preform element, its production, and fiber production methods from preform assemblies. The preform element has a length and a center axis along its length, a first and second end defined by its length and an outer preform element surface. The preform element includes a plurality of longitudinal structures disposed to form longitudinal hole(s) in a background material. At least one slot extending from its outer preform element surface and intersecting at least one of the longitudinal holes, wherein the at least one slot does not fully intersect the preform element. The preform element may be a preform center element or a preform ring element and may be assembled to a form part of a preform assembly for an optical fiber.
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公开(公告)号：US20210311257A1
公开(公告)日：2021-10-07
申请号：US17234361
申请日：2021-04-19
Applicant: NKT Photonics A/S
Inventor： Thomas FEUCHTER , Irnis KUBAT , Timur ISKHAKOV
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.
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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
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.
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公开(公告)号：US20200341190A1
公开(公告)日：2020-10-29
申请号：US16871297
申请日：2020-05-11
Applicant: NKT PHOTONICS A/S
Inventor： Johannes WEIRICH , Martin Dybendal MAACK
Abstract: The invention comprises a delivery fiber assembly suitable for delivering broad band light. The delivery fiber assembly comprises a delivery fiber and a connector member. The deliver has a length, an input end for launching light and a delivery end for delivering light, where the delivery fiber comprises along its length a core region and a cladding region surrounding the core region. The cladding region comprises a cladding background material having a refractive index Nbg and a plurality of inclusions of solid material having refractive index up to Ninc and extending in the length of the longitudinal axis of the delivery fiber, wherein Ninc
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