公开(公告)号：US11573366B2

公开(公告)日：2023-02-07

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.

公开(公告)号：US11947160B2

公开(公告)日：2024-04-02

申请号：US18150486

申请日：2023-01-05

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.

公开(公告)号：US20230161100A1

公开(公告)日：2023-05-25

申请号：US18150486

申请日：2023-01-05

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 ,  C03B2203/16 ,  C03B2203/14 ,  C03B2201/03 ,  G02B6/02352 ,  C03B2203/42 ,  G02B6/02357 ,  C03B2201/21 ,  C03B2201/20

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.