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1. IN201917030222 - NOVEL OPTICAL FIBER

Office India
Application Number 201917030222
Application Date 26.07.2019
Publication Number 201917030222
Publication Date 02.10.2020
Publication Kind A
IPC
G02B 6/02
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
Applicants ZHONGTIAN TECHNOLOGY FIBER POTICS CO., LTD
JIANGSU ZHONGTIAN TECHNOLOGY CO.,LTD.
ZHONGTIAN TECHNOLOGY ADVANCED MATERIALS CO., LTD.
JIANGDONG SCIENCE AND TECHNOLOGY CO., LTD
Inventors CAO, Shanshan
JIANG, Xinli
LIU, Zhizhong
SHEN, Yichun
WANG, Zhen
SU, Haiyan
XU, Haitao
Title
(EN) NOVEL OPTICAL FIBER
Abstract
(EN)
A novel optical fiber, sequentially comprising a single-mode fiber core, a multi-mode layer, and an outer cladding which are coaxially arranged from inside to outside. The single-mode fiber core is located at the center of the optical fiber and has an upper step refractive index. The multi-mode layer surrounds the single-mode fiber core and has a refractive index of a profile distribution. A plurality of transition layers are arranged on the inner side of the multi-mode layer and/or the outer side of the multi-mode layer. The transition layers and the single-mode fiber core or the outer cladding layer are coaxially arranged, the transition layers are tightly attached to the multi-mode layer, and the refractive index of the transition layers is equal to the refractive index of the contact part of the multi-mode layer. The novel optical fiber has both single-mode transmission and multi-mode transmission, data center optical cable management is greatly simplified, future transceiver upgrading cost is lowered, and the optical fiber has good low-loss characteristics by arranging the transition layer. In addition, the optical fiber has good bending resistance due to the design of a lower doping layer or a concave layer.

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