Title :
BER estimation of optical WDM RZ-DPSK systems through the differential phase Q
Author :
Hiew, C.C. ; Abbou, F.M. ; Chuah, H.T. ; Majumder, S.P. ; Hairul, A.A.R.
Author_Institution :
Fac. of Eng., Multimedia Univ., Cyberjaya, Malaysia
Abstract :
The optical return-to-zero differential phase-shift keying system is analyzed to determine the accuracy of the differential phase Q method in estimating the bit-error rate (BER). It is found that it consistently underestimates the BER though it successfully predicts the qualitative behavior of single-channel and wavelength-division-multiplexed systems for back-to-back and point-to-point configurations. A simple modification reduced the underestimation and produced accurate results.
Keywords :
Q-factor; differential phase shift keying; error statistics; optical modulation; wavelength division multiplexing; BER estimation; bit-error rate; differential phase Q; optical WDM RZ-DPSK; optical return-to-zero differential phase-shift keying system; single-channel system; wavelength division multiplexed system; Bit error rate; Intersymbol interference; Optical filters; Optical noise; Optical receivers; Phase estimation; Phase modulation; Rails; Signal analysis; Wavelength division multiplexing; Bit-error-rate (BER) analysis; differential phase-shift keying (DPSK); wavelength-division multiplexing (WDM);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.836759
