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1. CN109574491 - Radiation-resistant optical fiber preparation method

Office
Chine
Numéro de la demande 201910101344.4
Date de la demande 31.01.2019
Numéro de publication 109574491
Date de publication 05.04.2019
Numéro de délivrance 109574491
Date de délivrance 07.07.2020
Type de publication B
CIB
C03B 37/025
CCHIMIE; MÉTALLURGIE
03VERRE; LAINE MINÉRALE OU DE SCORIES
BFABRICATION OU FAÇONNAGE DU VERRE, DE LA LAINE MINÉRALE OU DE SCORIES;  TRAITEMENTS ADDITIONNELS DANS LA FABRICATION OU LE FAÇONNAGE DU VERRE, DE LA LAINE MINÉRALE OU DE SCORIES
37Fabrication ou traitement de copeaux, de fibres ou de filaments obtenus à partir de verre, substances minérales ou scories ramollies
01Fabrication de fibres ou de filaments de verre
02par étirage ou extrusion
025à partir de tubes, tiges, fibres ou filaments ramollis par chauffage
C03B 37/012
CCHIMIE; MÉTALLURGIE
03VERRE; LAINE MINÉRALE OU DE SCORIES
BFABRICATION OU FAÇONNAGE DU VERRE, DE LA LAINE MINÉRALE OU DE SCORIES;  TRAITEMENTS ADDITIONNELS DANS LA FABRICATION OU LE FAÇONNAGE DU VERRE, DE LA LAINE MINÉRALE OU DE SCORIES
37Fabrication ou traitement de copeaux, de fibres ou de filaments obtenus à partir de verre, substances minérales ou scories ramollies
01Fabrication de fibres ou de filaments de verre
012Fabrication d'ébauches d'étirage de fibres ou de filaments
CPC
C03B 37/012
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
37Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
01Manufacture of glass fibres or filaments
012Manufacture of preforms for drawing fibres or filaments
C03B 37/025
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
37Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
01Manufacture of glass fibres or filaments
02by drawing or extruding, ; e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
025from reheated softened tubes, rods, fibres or filaments ; , e.g. drawing fibres from preforms
Déposants FIBERHOME TELECOMMUNICATION TECHNOLOGIES CO., LTD.
烽火通信科技股份有限公司
CHINA NUCLEAR POWER DESIGN CO., LTD.(SHENZHEN)
深圳中广核工程设计有限公司
Inventeurs ZHANG YICHI
张一弛
YU HUANG
喻煌
LUO CHENG
骆城
ZHU WEI
祝威
CHEN LIMING
陈黎明
LIU CHENG
刘骋
CHEN WEIHUA
陈卫华
ZHANG LONGQIANG
张龙强
SUN WEI
孙伟
MA JINNA
麻金娜
SU YUJUN
苏玉军
Mandataires 武汉智权专利代理事务所(特殊普通合伙) 42225
Titre
(EN) Radiation-resistant optical fiber preparation method
(ZH) 一种耐辐射光纤的制备方法
Abrégé
(EN)
The invention discloses a radiation-resistant optical fiber preparation method, and relates to the field of optical fiber manufacturing. The method includes the following steps: sequentially preforming annealing, hydrogen loading and pre-irradiation pretreatment on an optical fiber preform; preforming wire-drawing on the pretreated optical fiber preform to obtain a radiation-resistant single-modeoptical fiber or a radiation-resistant multi-mode optical fiber. The method can completely eliminate the material defects in quartz glass, inhibit the uneven stress distribution in the optical fiber preform, and reduce the attenuation of the wire-drawn optical fiber; and meanwhile, the radiation sensitivity of the optical fiber can be effectively reduced, and the rapid preparation of the radiation-resistant optical fiber is facilitated; and the radiation-resistant level of the wire-drawn optical fiber as a whole is improved, so that the method is beneficial to realizing large-scale manufacturing of the radiation-resistant optical fiber. In addition, the method does not limit the types of optical fiber preforms and has wide application range.

(ZH)
本发明公开了一种耐辐射光纤的制备方法,涉及光纤制造领域,该方法包括如下步骤:对光纤预制棒依次进行退火、载氢以及预辐照预处理;对经预处理后的光纤预制棒进行拉丝,制得耐辐射单模光纤或耐辐射多模光纤。本发明方法可以从整体消除石英玻璃内部的材料缺陷、抑制光纤预制棒内部应力分布不均匀的情况、降低所拉制光纤的衰减;同时可以有效降低光纤的辐照敏感程度,有助于实现耐辐射光纤的快速制备;还可以整体提高拉制光纤的耐辐射水平,有利于实现耐辐射光纤的大规模制造。此外,本发明方法对光纤预制棒的种类不作限制,适用范围广。

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