Title :
Determination of the origin of BER degradation utilizing asynchronous amplitude histograms
Author :
Shake, I. ; Takara, H. ; Morioka, T.
Author_Institution :
NTT Network Innovation Labs., Kanagawa, Japan
Abstract :
We propose a method that can determines the origin of BER degradation by analyzing amplitude histograms obtained by the asynchronous sampling technique. We measure asynchronous eye diagrams and evaluate both the waveform distortion caused by chromatic dispersion and the signal-to-noise ratio (SNR) deterioration by using electrical sampling to estimate the averaged Q-factor of 10 Gbit/s NRZ optical signals. Waveform distorted signals are shown to have histograms with different shape compared to signal-to-noise ratio degraded signals.
Keywords :
error statistics; optical fibre dispersion; optical fibre networks; optical fibre testing; signal sampling; 10 Gbit/s; BER degradation; NRZ optical signals; asynchronous amplitude histograms; asynchronous eye diagrams; asynchronous sampling technique; averaged Q-factor; chromatic dispersion; electrical sampling; optical networks; signal quality monitoring; signal-to-noise ratio degraded signals; waveform distorted signals; waveform distortion; Bit error rate; Chromatic dispersion; Degradation; Distortion measurement; Electric variables measurement; Histograms; Optical distortion; Q factor; Sampling methods; Signal to noise ratio;
Conference_Titel :
Lasers and Electro-Optics, 2001. CLEO/Pacific Rim 2001. The 4th Pacific Rim Conference on
Conference_Location :
Chiba, Japan
Print_ISBN :
0-7803-6738-3
DOI :
10.1109/CLEOPR.2001.971082
