公开(公告)号：US09197319B2

公开(公告)日：2015-11-24

申请号：US14054209

申请日：2013-10-15

Applicant: Electronics and Telecommunications Research Institute

Inventor： Won-Kyoung Lee ,  Seung-II Myong

IPC: H04B10/08 ,  H04B10/071

CPC classification number: H04B10/071

Abstract: There are provided a device for monitoring an optical link fault and a method thereof. According to an embodiment of the invention, the device for monitoring an optical link fault and the method thereof apply an optical link fault monitoring signal to an optical link and precisely identify a type of the fault using waveforms of a reflected signal returned from the optical link or a wavelength dependence of reflected signal intensity.

Abstract translation: 提供了一种用于监视光链路故障的装置及其方法。 根据本发明的实施例，用于监视光链路故障的装置及其方法将光链路故障监视信号应用于光链路，并使用从光链路返回的反射信号的波形来精确地识别故障类型 或反射信号强度的波长依赖性。