Title :
On the Gaussian approximation and margin measurements in optical amplifier systems
Author :
Zhang, Q. ; Hayee, M.I. ; Ma, C. ; Howieson, M. ; Rahman, A. ; Miner, A. ; Kapadia, R. ; Tavva, C. ; Bajracharya, R. ; Huang, H.-W.
Author_Institution :
Dept. of Electr. & Comput. Eng., Minnesota State Univ., Mankato, MN
Abstract :
By comparing with the exact optical communication system performance obtained using a quasi-analytical BER calculation method, we systematically analyze the accuracy of the Gaussian approximation (GA) method and the threshold-based margin measurement method for performance evaluation of on-off keying (OOK) optical amplifier systems. We reveal the inherent connection between the GA and the threshold method from both the one-shot case and systems with low inter-symbol interference (ISI). For systems with strong ISI, we show that GA method may fail but the threshold method still provides accurate system performance estimates, even when large threshold bias is used in the measurement.
Keywords :
Gaussian processes; amplitude shift keying; error statistics; intersymbol interference; optical fibre amplifiers; optical fibre networks; optical modulation; Gaussian approximation; bit error rate; intersymbol interference; margin measurements; on-off keying optical amplifier systems; optical communication system; quasi-analytical BER calculation method; Band pass filters; Bit error rate; Gaussian approximation; Optical amplifiers; Optical filters; Optical noise; Optical receivers; Polarization; Semiconductor optical amplifiers; Stimulated emission; Optical amplifiers; bit error rate (BER); fiber optic communications; on-off keying (OOK);
Conference_Titel :
Information Sciences and Systems, 2009. CISS 2009. 43rd Annual Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4244-2733-8
Electronic_ISBN :
978-1-4244-2734-5
DOI :
10.1109/CISS.2009.5054848
