然而，可以理解的是用于光纤中断检测的方法和装置可以利用标准的和低损耗的光纤段。
However, it is understood that methods and apparatus for fiber break detection can be used with standard and low-loss optical fiber spans.
因此，同样需要构造一种具有不产生光纤中断的错误指示的光纤中断检测的光纤通信系统。
Thus, there is also a desire to build an optical fiber communications system with fiber break detection that does not generate false indications of a fiber break.
图2描述的是根据本发明的具有光纤中断检测的、包括同向传播的拉曼光泵浦的光通信系统的一个实施例。
FIG. 2 illustrates one embodiment of an optical communications system with fiber break detection according to the present invention that includes a co-propagating Raman optical pump.
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