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公开(公告)号:US20220373733A1
公开(公告)日:2022-11-24
申请号:US17845358
申请日:2022-06-21
Applicant: NKT PHOTONICS A/S
Inventor: Jens Kristian LYNGSØ , Christian JAKOBSEN , Jesper Skov GRETLUND , Harald R. SIMONSEN
IPC: G02B6/02 , C03B37/012 , C03C13/04 , C03C25/66
Abstract: 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 λ, 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.
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公开(公告)号:US20240319436A1
公开(公告)日:2024-09-26
申请号:US18441046
申请日:2024-02-14
Applicant: NKT Photonics A/S
Inventor: Jens Kristian LYNGSØ , Christian JAKOBSEN , Jesper Skov GRETLUND , Harald R. SIMONSEN
IPC: G02B6/02 , C03B37/012 , C03C13/04 , C03C25/66
CPC classification number: G02B6/02342 , C03B37/0122 , C03C13/045 , C03C25/66 , C03B2201/03 , C03B2201/20 , C03B2201/21 , C03B2203/14 , C03B2203/16 , C03B2203/42 , G02B6/02352 , G02B6/02357
Abstract: 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 λ, 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.
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