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一、引言七十年代以来,光纤通信在我国的发展极为迅速,目前正在逐步走向实用化。因为光缆的制造长度总是有限的,故必须在施工现场将各根光缆连接起来,以达到所需要的长度。随着光纤损耗的减小,光纤接头质量的好坏对整个光纤通信系统的影响就越来越大了。另外,在运输、施工和使用过程中,光纤可能出现某些故障,甚至断裂,对此都必须快速有效地进行检测。
I. Introduction Since the 1970s, the development of optical fiber communication in our country has been extremely rapid. At present, the optical fiber communication is gradually being put into practical use. Because of the limited length of fiber optic cable manufacturing, it is necessary to connect each fiber optic cable at the construction site to achieve the required length. With the loss of fiber loss, the quality of optical fiber connectors, the quality of the entire optical communication system, the impact is growing. In addition, some problems, even breaks, may occur in the fiber during transportation, construction and use, all of which must be detected quickly and effectively.