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1. 发明公开

EP0716047A3 Method and apparatus for producing optical fiber preform 失效
标题翻译：用于制造光纤预制件的方法和装置
公开(公告)号：EP0716047A3
公开(公告)日：1996-10-09
申请号：EP95306543.0
申请日：1995-09-18
申请人： FIBERCORE, INC.
发明人： Aslami, Mohd A. , Perry, Gregory A.
IPC分类号： C03B37/012
CPC分类号： C03B37/01248 , C03B37/01211
摘要： A method and device for fabricating a single mode glass optical fiber preform is disclosed of the rod-in-tube type that can reduce the time for completing collapse of the barrier tube (28) by applying vacuum to an annular gap (32), formed between the barrier tube (28) and the core rod (22), during heating, and can enhance the optical properties by introducing a gas or a mixture of gases into the annular gap (32) prior to the vacuum application. The apparatus comprises a glass lathe (100) for holding and rotating the core rod/barrier tube combination (22/28), at least one heater (118) for uniformly heating the combination, and a gas and/or vacuum introducing device (206,208) to the space (32) formed between the core (22) and the barrier tube (28).

2. 发明公开

EP0716047A2 Method and apparatus for producing optical fiber preform 失效
标题翻译：生产光纤预制棒的方法和设备
公开(公告)号：EP0716047A2
公开(公告)日：1996-06-12
申请号：EP95306543.0
申请日：1995-09-18
申请人： FIBERCORE, INC.
发明人： Aslami, Mohd A. , Perry, Gregory A.
IPC分类号： C03B37/012
CPC分类号： C03B37/01248 , C03B37/01211
摘要： A method and device for fabricating a single mode glass optical fiber preform is disclosed of the rod-in-tube type that can reduce the time for completing collapse of the barrier tube (28) by applying vacuum to an annular gap (32), formed between the barrier tube (28) and the core rod (22), during heating, and can enhance the optical properties by introducing a gas or a mixture of gases into the annular gap (32) prior to the vacuum application. The apparatus comprises a glass lathe (100) for holding and rotating the core rod/barrier tube combination (22/28), at least one heater (118) for uniformly heating the combination, and a gas and/or vacuum introducing device (206,208) to the space (32) formed between the core (22) and the barrier tube (28).
摘要翻译：公开了一种用于制造单模玻璃光纤预制棒的方法和设备，该方法和设备能够通过向环形间隙（32）施加真空来减少完成阻挡管（28）的塌陷的时间，在加热期间在阻挡管（28）和芯棒（22）之间，并且可以在施加真空之前通过将气体或气体混合物引入环形间隙（32）中来增强光学性能。该设备包括用于保持和旋转芯棒/屏障管组合（22/28）的玻璃车床（100），用于均匀加热该组合的至少一个加热器（118），以及气体和/或真空引入装置（206,208 ）到形成在芯部（22）和阻挡管（28）之间的空间（32）。

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