Absolute polar duty cycle division multiplexing over wavelength division multiplexing system

• Main Authors: Malekmohammadi, A., Abas, A.F., Abdullah, M.K., Mahdiraji, G.A., Mokhtar, M., Rasid, M.F.A.
• Format: Article
• Published: Optics Communications 2009
• Subjects: TA Engineering (General). Civil engineering (General); TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.um.edu.my/6216/; http://ac.els-cdn.com/S0030401809007287/1-s2.0-S0030401809007287-main.pdf?_tid=19b3daf4-6e66-11e2-9228-00000aab0f6b&acdnat=1359939737_376160c796f1aa7c8445670c4cc5b65a
• Institution: Universiti Malaya

The performance of absolute polar duty cycle division multiplexing (AP-DCDM) over wavelength division multiplexing (WDM) system is presented based on the simulation results. The AP-DCDM signal has narrower bandwidth than conventional time division multiplexing (TDM) signal, which makes its implementation in WDM system advantageous. In this paper, characteristics of AP-DCDM and TDM signals in WDM system are compared at the speed of 40 Gbit/s per channel, for the minimum allowed channel spacing and the chromatic dispersion tolerance. The results clearly show that AP-DCDM performs significantly better than TDM. By using AP-DCDM, 1.28 Tbit/s (32 x 40 Gbit/s) was successfully transmitted over 320 km standard single mode fiber. Spectral efficiency of 0.64 b/s/Hz was achieved by using 10 Gbit/s transmitters and receivers without polarization multiplexing.