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光纤制造工艺的迅速发展,在解决光纤的传播特性,诸如损耗及带宽等技术方面,已经取得成功。目前纤维制造工艺已达到使纤维机械特性适于使用的阶段。本文介绍了有关近几年制取的光纤机械强度的研究情况。首先叙述了高强度光纤的制造工艺,其中包括纤维拉拔和予被复技术。基于由SEM观察到的断面的部分图形分析,阐述了纤维的断裂机制。此外还探讨了疲劳特性,尤其是湿气对光纤强度的影响。对玻璃表面及构造进行了物理和化学方面详细的研究,可望在不久的将来取得成功。
The rapid development of optical fiber manufacturing processes has been successful in addressing the propagation characteristics of optical fibers such as loss and bandwidth. The current fiber manufacturing process has reached the stage where fiber mechanical properties are suitable for use. This article describes the research on the mechanical strength of optical fibers prepared in recent years. First described the manufacturing process of high-strength optical fiber, including fiber drawing and pre-complex technology. Based on the partial pattern analysis of the cross-section observed by SEM, the fracture mechanism of the fiber is explained. In addition, the fatigue characteristics, especially the influence of moisture on the strength of the optical fiber, are also discussed. A detailed physical and chemical study of the glass surface and structure is expected to succeed in the near future.