Effect of self-phase-modulation on dispersion compensated absolute polar duty cycle division multiplexing transmission

• Main Authors: Malekmohammadi, Amin, Mahdiraji, Ghafour Amouzad, Abas, Ahmad Fauzi, Abdullah, Mohamad Khazani, Mokhtar, Makhfudzah, A. Rasid, Mohd Fadlee
• Format: Article
• Language: English
• Published: The Institution of Engineering and Technology 2009
• Online Access: http://psasir.upm.edu.my/id/eprint/14307/1/Effect%20of%20self-phase-modulation%20on%20dispersion%20compensated%20absolute%20polar%20duty%20cycle%20division%20multiplexing%20transmission.pdf; http://psasir.upm.edu.my/id/eprint/14307/; https://ieeexplore.ieee.org/document/5235433
• Institution: Universiti Putra Malaysia

The effect of self-phase modulation (SPM) on 40 Gb/s absolute polar duty cycle division multiplexing (AP-DCDM) is investigated and reported. The study includes the influence of launched power, number of channels and dispersion compensation method. Dispersion post-compensation and combination of dispersion pre- and post-compensation are used to manage the transmission links. At high powers, SPM degrades the pulse recompression process and provides an upper bound on the AP-DCDM transmitted pulse energy. It is demonstrated that the 40 Gb/s AP-DCDM system shows a 4.1 dB improvement and less than 1 dB penalty in terms of SPM tolerance in comparison to 40 Gb/s 4-ary and on off-keying (OOK) systems, respectively. The SPM effect is stronger in the 100 post-compensated link than that in the combination of pre- and post-compensated links. Dispersion pre-compensation of 18 22 is found as the optimum range of pre-compensation ratio for AP-DCDM system, which makes optimisation of the launched power possible.