title: PDM-iRZ-QPSK vs. PS-QPSK at 100 Gbit/s over dispersion-managed links.
abstract: We compare by simulation the performance of 100 Gbit/s PDM-iRZ-QPSK and PS-QPSK transmission both in homogeneous and hybrid QPSK/OOK DM links. We detail the reasons of the overall performance investigating each nonlinear effect (SPM, XPM and XPolM) individually. Moreover, we compare the accuracy of the noise loading method with the more realistic use of noisy in-line amplifiers. Results shows that i) PDM-iRZ-QPSK and PS-QPSK have same reach in both homogeneous and hybrid setups, ii) correct simulations must include distributed ASE.
authors.affiliation: Dept. of Information Engineering, Università degli Studi di Parma, 43124 Parma, Italy. paolo.serena@unipr.it
authors.forename: P
authors.initials: P
authors.lastname: Serena
authors.forename: N
authors.initials: N
authors.lastname: Rossi
authors.forename: A
authors.initials: A
authors.lastname: Bononi
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008962:Models, Theoretical; D055096:Optical Devices; D012542:Scattering, Radiation; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*