Title:
NOVEL OPTICAL FIBER
Document Type and Number:
WIPO Patent Application WO/2020/133478
Kind Code:
A1
Abstract:
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 α 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.
Inventors:
CAO SHANSHAN (CN)
JIANG XINLI (CN)
LIU ZHIZHONG (CN)
SHEN YICHUN (CN)
WANG ZHEN (CN)
SU HAIYAN (CN)
XU HAITAO (CN)
JIANG XINLI (CN)
LIU ZHIZHONG (CN)
SHEN YICHUN (CN)
WANG ZHEN (CN)
SU HAIYAN (CN)
XU HAITAO (CN)
Application Number:
PCT/CN2018/125787
Publication Date:
July 02, 2020
Filing Date:
December 29, 2018
Export Citation:
Assignee:
ZHONGTIAN TECH FIBER POTICS CO LTD (CN)
JIANGSU ZHONGTIAN TECHNOLOGY CO LTD (CN)
ZHONGTIAN TECH ADVANCED MATERIALS CO LTD (CN)
JIANGDONG SCIENCE AND TECH CO LTD (CN)
JIANGSU ZHONGTIAN TECHNOLOGY CO LTD (CN)
ZHONGTIAN TECH ADVANCED MATERIALS CO LTD (CN)
JIANGDONG SCIENCE AND TECH CO LTD (CN)
International Classes:
G02B6/02
Foreign References:
| CN105204110A | 2015-12-30 | |||
| CN1514262A | 2004-07-21 | |||
| CN103149630A | 2013-06-12 | |||
| CN105511015A | 2016-04-20 | |||
| US5913005A | 1999-06-15 |
Other References:
See also references of EP 3904925A4
Attorney, Agent or Firm:
SHENZHEN SCIENBIZIP INTELLECTUAL PROPERTY AGENCY CO.,LTD. (CN)
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