公开(公告)号：US20140308034A1

公开(公告)日：2014-10-16

申请号：US13929110

申请日：2013-06-27

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Yun Chur CHUNG ,  Hyeok Gyu CHOI ,  Jun Ho CHANG

IPC: H04B10/07

CPC classification number: H04B10/07953

Abstract: An optical signal quality monitoring apparatus includes an optical detector for directly receiving an optical signal modulated in an optical path and converting the optical signal to an electric signal, an asynchronous sampling unit for asynchronously sampling the electric signal of the optical detector at a reduced speed, and a digital signal processor for monitoring an optical signal quality by finding a synchronized amplitude histogram of data sampled in the asynchronous sampling unit. An optical signal quality monitoring method includes (a) a step of allowing an optical detector to directly receive a modulated optical signal and to convert the optical signal to an electric signal; (b) a step of allowing an asynchronous sampling unit to asynchronously sample the electric signal; and (c) a step of allowing a digital signal processor to monitor an optical signal quality by generating a synchronized amplitude histogram of sampled data.

Abstract translation: 光信号质量监测装置包括：光检测器，用于直接接收在光路中调制的光信号并将光信号转换为电信号;异步采样单元，用于以降低的速度异步采样光检测器的电信号， 以及数字信号处理器，用于通过找到在异步采样单元中采样的数据的同步振幅直方图来监视光信号质量。 光信号质量监测方法包括：（a）允许光检测器直接接收经调制的光信号并将光信号转换为电信号的步骤; （b）允许异步采样单元异步采样电信号的步骤; 以及（c）允许数字信号处理器通过产生采样数据的同步幅度直方图来监视光信号质量的步骤。