Abstract
Polarization shift keying (PolSK) and advanced modulation formats represent the future in development of high speeds communications. In this paper the feasibility of PolSK systems combining multilevel modulation is studied. The performance of 40 Gbit/s PolSK systems is tested by a optical simulation software. Optimums values for set the signals and eye diagrams are evaluated. Furthermore numerical simulations are performed to evaluate the transmission performance of a 40 Gbit/s PolSK system, and a transmission through various optical fiber lengths is demonstrated.
