Title:
OPTICAL FIBER AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/121259
Kind Code:
A1
Abstract:
Provided is a method for preparing an optical fiber, the method comprising the following steps: preparing a powder body mandrel; sequentially subjecting the powder body mandrel to dehydroxylation and sintering treatments to obtain a glass rod, wherein the dehydroxylation treatment comprises placing the powder body mandrel in a dehydroxylation atmosphere containing a fluorine-containing gas for dehydroxylation, and the hydroxyl content of the glass rod is less than 5 ppm; forming an outer cladding layer on the surface of the glass rod to obtain an optical fiber preform rod; drawing the fiber preform rod into a filament, and subjecting the filament to a temperature-maintained annealing treatment; and coating the surface of the filament with a resin and then performing ultraviolet curing to obtain an optical fiber. Further provided is an optical fiber prepared by using the method for preparing an optical fiber.
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Inventors:
ZHU QIANSHENG (CN)
YE YANG (CN)
DING CHUNLAI (CN)
CAO SHANSHAN (CN)
LIU ZHIZHONG (CN)
XUE JIPING (CN)
XUE CHI (CN)
YE YANG (CN)
DING CHUNLAI (CN)
CAO SHANSHAN (CN)
LIU ZHIZHONG (CN)
XUE JIPING (CN)
XUE CHI (CN)
Application Number:
PCT/CN2021/098336
Publication Date:
June 16, 2022
Filing Date:
June 04, 2021
Export Citation:
Assignee:
ZHONGTIAN TECH FIBER POTICS CO LTD (CN)
JIANGSU ZHONGTIAN TECHNOLOGY CO LTD (CN)
JIANGDONG SCIENCE AND TECH CO LTD (CN)
JIANGSU ZHONGTIAN TECHNOLOGY CO LTD (CN)
JIANGDONG SCIENCE AND TECH CO LTD (CN)
International Classes:
C03B37/027; C03B37/012; G02B6/02
Foreign References:
| CN112499961A | 2021-03-16 | |||
| CN111929764A | 2020-11-13 | |||
| CN211078920U | 2020-07-24 | |||
| EP1270522A1 | 2003-01-02 | |||
| CN110040942A | 2019-07-23 | |||
| CN106116138A | 2016-11-16 | |||
| CN111348826A | 2020-06-30 |
Other References:
"Optical Fiber Cables Preparation, 1st Edition", 31 August 2011, XIDIAN UNIVERSITY PRESS, CN, ISBN: 978-7-5606-2601-7, article ZHANG, SEN: "Influence and Control of Optical Fiber Tension over Optical Fiber Performance", pages: 46 - 49, XP009538169
See also references of EP 4091995A4
See also references of EP 4091995A4
Attorney, Agent or Firm:
SHENZHEN SCIENBIZIP INTELLECTUAL PROPERTY AGENCY CO.,LTD. (CN)
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