Title :
A method of peak detecting for nanosecond pulse in optical performance monitoring system
Author :
Feng Lihui ; Zhang Qing ; Liu Xiang ; Zuo Lin ; Yang Aiying
Author_Institution :
Sch. of Optoelectron., Beijing Inst. of Technol., Beijing, China
Abstract :
In optical performance monitoring system, the analog to digital converter is needed to detect the peak of nanosecond pulse and get the signal envelope. A scheme based on a designed anti-aliasing filter and analog to digital converter is proposed to broaden the nanosecond pulse and make it easier for the analog to digital converter to catch the peak of the nanosecond pulse. The experimental results demonstrate that, with the proposed scheme, the optical performance system needs less time to get the recovered eye-diagram of high speed optical data signal, and is robust to phase mismatch in the analog to digital converter circuit.
Keywords :
analogue-digital conversion; high-speed optical techniques; optical filters; optical pulse shaping; analog to digital converter; antialiasing filter; high speed optical data signal; nanosecond pulse; optical performance monitoring system; peak detecting method; phase mismatch; recovered eye-diagram; signal envelope; Adaptive optics; Biomedical optical imaging; Field programmable gate arrays; Integrated optics; Monitoring; Optical design; Optical filters; analog-to-digital converter; anti-aliasing filter; optical performance monitoring system (OPM); pulse peak detection;
Journal_Title :
Communications, China
DOI :
10.1109/CC.2014.6821739
