Analyzing the benefit of optical transmission systems based on root raised cosine PS-QPSK and a flexible channel grid

Aida Seck (1, 2, 3) , Petros Ramantanis (1) , Jordi Vuong (1, 2, 3) , Djalal Falih Bendimerad (1, 2, 3) , Catherine Lepers (1, 2, 3) , Badr-Eddine Benkelfat (1, 2, 3) , Yann Frignac (1, 2, 3)

1 TSP - EPH - Département Electronique et Physique
2 SAMOVAR - Services répartis, Architectures, MOdélisation, Validation, Administration des Réseaux
3 CNRS - Centre National de la Recherche Scientifique

We numerically investigate the multi-channel transmission performance of Polarization Switched Quadrature Phase Shift Keying (PS-QPSK) and we compare it to the performance of Polarization-Division-Multiplexed QPSK (PDM-QPSK), using Root Raised Cosine (RRC) spectral shaping, in the context of a flexible channel grid. We point out the impact of the roll-off factor and the potential influence of different dispersion management scenarios. Finally, the advantage of PS-QPSK against PDM-QPSK is presented as a function of the system parameters, while we also discuss the benefit of a RRC spectral shaping against a tight filtering at the transmitter side with a Gaussian-shaped filter.

Mots clés: Optical transmission systems; Polarization switched quadrature phase shift keying (PS-QPSK); Root raised cosine

Domaines: Réseaux et télécommunications [cs.NI]

Aida Seck, Petros Ramantanis, Jordi Vuong, Djalal Falih Bendimerad, Catherine Lepers, et al.. Analyzing the benefit of optical transmission systems based on root raised cosine PS-QPSK and a flexible channel grid. Optics Express, 2013, 21 (9), pp.10496-10501. ⟨hal-00818811⟩