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1. CN111257994 - 宽带抗弯多模光纤

Office China
Application Number 201811457678.7
Application Date 30.11.2018
Publication Number 111257994
Publication Date 09.06.2020
Publication Kind A
IPC
G02B 6/028
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
02Optical fibre with cladding
028with core or cladding having graded refractive index
G02B 6/036
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
02Optical fibre with cladding
036core or cladding comprising multiple layers
Applicants 中天科技精密材料有限公司
江苏中天科技股份有限公司
Inventors 蒋新力
沈一春
许维维
成煜
钱本华
王见青
Agents 深圳市赛恩倍吉知识产权代理有限公司 44334
深圳市赛恩倍吉知识产权代理有限公司 44334
Title
(ZH) 宽带抗弯多模光纤
Abstract
(ZH)
本发明提供一种宽带抗弯多模光纤,包括芯层、基管、下陷包层及外包层,所述基管、下陷包层及外包层沿径向的横截面均为圆环,其特征在于:所述芯层中掺杂有GeO2,P2O5和F,所述芯层为折射率渐变区,所述芯层半径为R1,所述基管套设于所述芯层外侧,所述基管的宽度为R2‑R1,所述下陷包层设置在所述基管的外侧,所述下陷包层的宽度为R3‑R2,所述外包层套设于所述下陷包层的外侧,所述外包层的宽度为Rmax‑R3,所述芯层中的P2O5和F的摩尔浓度随所述芯层的半径变化。本发明提供的宽带抗弯多模光纤,降低了所制造的抗弯多模光纤的成本并且具有良好的抗弯性能。

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