公开(公告)号：US20230275388A1

公开(公告)日：2023-08-31

申请号：US18309980

申请日：2023-05-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Guanshi QIN ,  Zhixu JIA ,  Shengling WU ,  Weiping QIN ,  Shiyi CAO ,  Zhiwu CHANG ,  Ruishan CHEN

IPC: H01S3/067 ,  C03C13/04 ,  C03C3/23

CPC classification number: H01S3/06716 ,  C03C3/23 ,  C03C13/048 ,  C03B37/027

Abstract: The technology of this application relates to the field of communication technologies, and an optical fiber raw material composition, an optical fiber, and an optical fiber product. The optical fiber raw material composition includes components of the following molar percentages: AlF3 10%-50%, BaF2 3%-20%, CaF2 3%-20%, YF3 1%-15%, SrF2 3%-20%, MgF2 3%-20%, and TeO2 1%-35%. The optical fiber prepared by using the optical fiber raw material composition provided in this disclosure can be used in aspects such as a mid-infrared band transmission optical fiber, an optical fiber amplifier, a fiber laser, and an optical fiber sensor.

公开(公告)号：US20220357515A1

公开(公告)日：2022-11-10

申请号：US17863100

申请日：2022-07-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Juhao LI ,  Jinglong ZHU ,  Yongqi HE ,  Shengling WU ,  Qiang GUO ,  Ruishan CHEN ,  Rui ZHOU

IPC: G02B6/293 ,  G02B6/02

Abstract: An optical fiber filter includes a fiber core, inner cladding, and outer cladding. A refractive index of the fiber core, a refractive index of the inner cladding, and a refractive index of the outer cladding progressively decrease in sequence. The fiber core is configured to transmit at least two mutually different first optical signal modes, the inner cladding is configured to transmit at least two mutually different second optical signal modes, and at least one fiber grating is etched on the fiber core. At least part of optical power of a target first optical signal mode is coupled to only a target second optical signal mode at the fiber grating. The target first optical signal mode is one of the at least two first optical signal modes, and the target second optical signal mode is one of the at least two second optical signal modes.