Patents by Inventor Christian Jakobsen
Christian Jakobsen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11977255Abstract: 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.Type: GrantFiled: April 17, 2023Date of Patent: May 7, 2024Assignee: NKT Photonics A/SInventors: Jens Kristian Lyngsøe, Christian Jakobsen, Mattia Michieletto
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Publication number: 20240111087Abstract: 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.<Th<250° C.Type: ApplicationFiled: June 19, 2023Publication date: April 4, 2024Applicant: NKT Photonics A/SInventors: 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
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Patent number: 11947160Abstract: An optical fiber having an axial direction and a cross section perpendicular to the axial direction, and a method and preform for producing such an optical fiber. The optical fiber is adapted to guide light at a wavelength ?, and includes a core region, an inner cladding region surrounding said core region, and at least one of a first type of feature including a void and a surrounding first silica material. The core, the inner cladding region and the first type of feature extends along said axial direction over at least a part of the length of the optical fiber. The first silica material has a first chlorine concentration of about 300 ppm or less.Type: GrantFiled: January 5, 2023Date of Patent: April 2, 2024Assignee: NKT PHOTONICS A/SInventors: Jens Kristian Lyngsø, Christian Jakobsen, Jesper Skov Gretlund, Harald R. Simonsen
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Publication number: 20240053545Abstract: 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.Type: ApplicationFiled: October 24, 2023Publication date: February 15, 2024Inventors: Thomas Tanggaard Alkeskjold, Jens Kristian Lyngsøe, Christian Jakobsen, Martin Dybendal Maack, Mattia Michieletto, Sidsel Rübner Papior
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Patent number: 11846809Abstract: 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.Type: GrantFiled: May 13, 2022Date of Patent: December 19, 2023Assignee: NKT PHOTONICS A/SInventors: Thomas Tanggaard Alkeskjold, Jens Kristian Lyngsøe, Christian Jakobsen, Martin Dybendal Maack, Mattia Michieletto, Sidsel Rübner Papior
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Publication number: 20230305222Abstract: A supercontinuum source including a pump source and a supercontinuum generator configured for receiving electromagnetic radiation derived from the pump source and for generating supercontinuum radiation, the supercontinuum generator including a nonlinear microstructured optical fibre having a core region comprising silica. The core region includes a dopant selected to reduce light-induced non-bridging oxygen hole centre loss in the nonlinear microstructured optical fibre.Type: ApplicationFiled: May 19, 2023Publication date: September 28, 2023Applicant: NKT Photonics A/SInventors: Jens LYNGSØ, Cameron SMITH, Anders HARPØTH, Christian JAKOBSEN, Thomas Tanggard ALKESKJOLD, Irnis KUBAT
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Publication number: 20230273366Abstract: 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.Type: ApplicationFiled: April 17, 2023Publication date: August 31, 2023Applicant: NKT Photonics A/SInventors: Jens Kristian LYNGSØE, Christian JAKOBSEN, Mattia MICHIELETTO
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Patent number: 11719881Abstract: 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.<Th<250° C.Type: GrantFiled: July 1, 2022Date of Patent: August 8, 2023Assignee: NKT PHOTONICS A/SInventors: 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
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Patent number: 11698484Abstract: A supercontinuum source, comprises a pump source and a supercontinuum generator configured for receiving electromagnetic radiation derived from the pump source and for generating supercontinuum radiation, the supercontinuum generator comprising a nonlinear microstructured optical fibre having a core region comprising silica. The core region includes a dopant selected to reduce light-induced non-bridging oxygen hole centre loss in the nonlinear microstructured optical fibre.Type: GrantFiled: July 24, 2018Date of Patent: July 11, 2023Assignee: NKT PHOTONICS A/SInventors: Jens Lyngsø, Cameron Smith, Anders Harpøth, Christian Jakobsen, Thomas Tanggard Alkeskjold, Imis Kubat
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Patent number: 11662518Abstract: 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.Type: GrantFiled: September 12, 2022Date of Patent: May 30, 2023Assignee: NKT PHOTONICS A/SInventors: Jens Kristian Lyngsøe, Christian Jakobsen, Mattia Michieletto
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Publication number: 20230161100Abstract: An optical fiber having an axial direction and a cross section perpendicular to the axial direction, and a method and preform for producing such an optical fiber. The optical fiber is adapted to guide light at a wavelength ?, and includes a core region, an inner cladding region surrounding said core region, and at least one of a first type of feature including a void and a surrounding first silica material. The core, the inner cladding region and the first type of feature extends along said axial direction over at least a part of the length of the optical fiber. The first silica material has a first chlorine concentration of about 300 ppm or less.Type: ApplicationFiled: January 5, 2023Publication date: May 25, 2023Applicant: NKT Photonics A/SInventors: Jens Kristian Lyngsø, Christian Jakobsen, Jesper Skov Gretlund, Harald R. Simonsen
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Patent number: 11573366Abstract: An optical fiber having an axial direction and a cross section perpendicular to the axial direction, and a method and preform for producing such an optical fiber. The optical fiber is adapted to guide light at a wavelength ?, and includes a core region, an inner cladding region surrounding said core region, and at least one of a first type of feature including a void and a surrounding first silica material. The core, the inner cladding region and the first type of feature extends along said axial direction over at least a part of the length of the optical fiber. The first silica material has a first chlorine concentration of about 300 ppm or less.Type: GrantFiled: June 21, 2022Date of Patent: February 7, 2023Assignee: NKT PHOTONICS A/SInventors: Jens Kristian Lyngsø, Christian Jakobsen, Jesper Skov Gretlund, Harald R. Simonsen
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Publication number: 20230018465Abstract: 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.Type: ApplicationFiled: September 12, 2022Publication date: January 19, 2023Applicant: NKT Photonics A/SInventors: Jens Kristian LYNGSØE, Christian JAKOBSEN, Mattia MICHIELETTO
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Publication number: 20220373733Abstract: An optical fiber having an axial direction and a cross section perpendicular to the axial direction, and a method and preform for producing such an optical fiber. The optical fiber is adapted to guide light at a wavelength ?, and includes a core region, an inner cladding region surrounding said core region, and at least one of a first type of feature including a void and a surrounding first silica material. The core, the inner cladding region and the first type of feature extends along said axial direction over at least a part of the length of the optical fiber. The first silica material has a first chlorine concentration of about 300 ppm or less.Type: ApplicationFiled: June 21, 2022Publication date: November 24, 2022Applicant: NKT PHOTONICS A/SInventors: Jens Kristian LYNGSØ, Christian JAKOBSEN, Jesper Skov GRETLUND, Harald R. SIMONSEN
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Publication number: 20220342148Abstract: 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.<Thh<250° C.Type: ApplicationFiled: July 1, 2022Publication date: October 27, 2022Applicant: NKT Photonics A/SInventors: 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
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Patent number: 11474293Abstract: 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.Type: GrantFiled: March 26, 2021Date of Patent: October 18, 2022Assignee: NKT PHOTONICS A/SInventors: Jens Kristian Lyngsøe, Christian Jakobsen, Mattia Michieletto
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Publication number: 20220269012Abstract: 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.Type: ApplicationFiled: May 13, 2022Publication date: August 25, 2022Applicant: NKT Photonics A/SInventors: Thomas Tanggaard ALKESKJOLD, Jens Kristian LYNGSØE, Christian JAKOBSEN, Martin Dybendal MAACK, Mattia MICHIELETTO, Sidsel Rübner PAPIOR
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Patent number: 11409033Abstract: 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.<Th<250° C.Type: GrantFiled: February 22, 2021Date of Patent: August 9, 2022Assignee: NKT PHOTONICS A/SInventors: 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
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Patent number: 11402572Abstract: The invention relates to an optical fiber having an axial direction and a cross section perpendicular to said axial direction, and a method and preform for producing such an optical fiber. The optical fiber is adapted to guide light at a wavelength ?, and comprises a core region, an inner cladding region surrounding said core region, and at least one of a first type of feature comprising a void and a surrounding first silica material. The core, the inner cladding region and the first type of feature extends along said axial direction over at least a part of the length of the optical fiber. The first silica material has a first chlorine concentration of about 300 ppm or less.Type: GrantFiled: March 4, 2010Date of Patent: August 2, 2022Assignee: NKT PHOTONICS A/SInventors: Jens Kristian Lyngsø, Christian Jakobsen, Jesper Skov Gretlund, Harald R. Simonsen
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Patent number: 11360274Abstract: 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.Type: GrantFiled: May 10, 2021Date of Patent: June 14, 2022Assignee: NKT PHOTONICS A/SInventors: Thomas Tanggaard Alkeskjold, Jens Kristian Lyngsoe, Christian Jakobsen, Martin Dybendal Maack, Mattia Michieletto, Sidsel Rubner Papior