专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2014001113A Method for manufacturing optical fiber preform 有权
标题翻译：制造光纤预制件的方法
公开(公告)号：JP2014001113A
公开(公告)日：2014-01-09
申请号：JP2012138541
申请日：2012-06-20
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： SATO MAMORU , ICHII KENTARO
IPC分类号： C03B37/018
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing an optical fiber preform, capable of preventing the core central part of an optical fiber from being a high refractive index in order to prevent deterioration of the effective core cross section of the optical fiber.SOLUTION: The method for manufacturing an optical fiber preform comprises the steps of: supplying at least SiCland Ointo a quartz tube by a CVD method and depositing glass fine particles in the quartz tube while heating the outside of the quartz tube by a heat source; exhausting a solution including at least a rare earth element from the inside of the quartz tube and drying the glass fine particles after impregnating the glass fine particles with the solution; increasing a heat source temperature to sinter the glass fine particles and transparently vitrifying the sintered product; supplying at least Oand SiClin the quartz tube, further increasing the heat source temperature while controlling internal pressure in the quartz tube and crushing one end of the quartz tube; and supplying at least Ointo the quartz tube, venting it in the vicinity of the open end of the quartz tube, traversing the heat source in an axial direction of the quartz tube while controlling the internal pressure of the quartz tube and solidifying the quartz tube by reducing the diameter of the quartz tube.
摘要翻译：要解决的问题：为了提供一种光纤预制棒的制造方法，能够防止光纤的纤芯中心部分具有高的折射率，以防止光纤的有效纤芯横截面的劣化。：制造光纤预制棒的方法包括以下步骤：通过CVD法至少提供石英管的SiC区，并在石英管中沉积玻璃微粒，同时通过热源加热石英管的外部; 从石英管的内部排出至少包含稀土元素的溶液，并在用溶液浸渍玻璃微粒之后干燥玻璃微粒; 增加热源温度以烧结玻璃微粒并透明玻璃化烧结产品; 在石英管中至少提供O和SiClin，进一步增加热源温度，同时控制石英管内的压力并粉碎石英管的一端; 并至少提供石英管，将其排放到石英管的开口端附近，在石英管的轴向方向上穿过热源，同时控制石英管的内部压力并使石英管固化减小石英管的直径。

IPRDB

热门服务

关于我们

友情链接

联系方式