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公开(公告)号:US4566754A
公开(公告)日:1986-01-28
申请号:US361093
申请日:1982-03-23
IPC分类号: C03B37/023 , C03B37/027 , C03C13/04 , G02B6/00 , C03B37/025
CPC分类号: G02B6/02276 , C03B37/023 , C03B37/027 , C03C13/045 , C03B2201/02 , C03B2201/31 , C03B2203/24 , C03B2203/36 , Y10S65/16
摘要: An optical fibre capable of monomode transmission in, and having a wavelength of zero dispersion in, the 1.55 .mu.m window and having a core comprising silica and germanium dioxide and a cladding comprising silica is drawn from an appropriate preform at a temperature in the range from 1900.degree. C. to 2000.degree. C. Fibres thus produced have low loss compared with fibres drawn at higher temperature.
摘要翻译: 在1.55μm窗口内能够单模传输并具有零色散的光纤并且具有包括二氧化硅和二氧化锗的核心以及包含二氧化硅的包层的光纤在适当的预成型件中从在 1900℃至2000℃。与在较高温度下拉伸的纤维相比,这样生产的纤维具有低损失。
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公开(公告)号:US4675038A
公开(公告)日:1987-06-23
申请号:US856841
申请日:1986-04-21
IPC分类号: C03B37/018 , C03C13/04 , G02B6/036 , C03C25/02
CPC分类号: G02B6/03633 , C03B37/018 , C03B37/01861 , C03C13/045 , G02B6/03627 , C03B2203/24 , Y10S65/90
摘要: An improved method of manufacturing an optical fibre by vapor phase deposition of layers of cladding and core material for an optical fibre on the inside of a tubular substrate, followed by heating of the tube to cause it to collapse into a preform and drawing of the preform to form the fibre, includes performing the collapse with the introduction of chlorine gas acting as a drying agent. An alternative to chlorine gas is a vapor which decomposes in situ to yield chlorine without producing a solid deposit.
摘要翻译: 一种改进的制造光纤的方法,该方法是通过气相沉积在管状基材内部的用于光纤的包层和芯材料层,随后加热该管以使其塌陷成预成型件并预成型件的拉伸 以形成纤维,包括通过引入用作干燥剂的氯气进行塌陷。 氯气的替代品是在原位分解产生氯而不产生固体沉积物的蒸汽。
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公开(公告)号:US4351659A
公开(公告)日:1982-09-28
申请号:US314779
申请日:1981-10-26
申请人: Keith J. Beales , Clive R. Day , George R. Newns
发明人: Keith J. Beales , Clive R. Day , George R. Newns
IPC分类号: C03B37/00 , C03B37/023 , G02B6/00 , C03C25/02
CPC分类号: C03B37/0235 , C03B2205/56
摘要: A graded index optical fiber is produced in a double crucible with an elongate heated exit nozzle. The core and cladding glasses of the fiber diffuse into one another in the nozzle.
摘要翻译: 在具有细长加热出口喷嘴的双坩埚中产生渐变折射率光纤。 纤维的芯和包层玻璃在喷嘴中彼此扩散。
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