title: Ultra-long-haul transmission of 7×42.9 Gbit/s PS-QPSK and PDM-BPSK.
abstract: We investigated ultra-long-haul transmission of polarization-switched QPSK (PS-QPSK) and polarization-division-multiplexed BPSK (PDM-BPSK) at 42.9 Gbit/s experimentally as well as by means of computer simulations. PDM-BPSK allowed transmission distances in excess of 14,040 km to be achieved, compared to 13,640 km for PS-QPSK. However, PS-QPSK offers a significant reduction in receiver complexity due to the lower symbol-rate.
authors.affiliation: Optical Networks Group, Department of Electronic and Electrical Engineering, University College London (UCL), Torrington Place, London WC1E 7JE, UK. cbehrens@ee.ucl.ac.uk
authors.forename: Carsten
authors.initials: C
authors.lastname: Behrens
authors.forename: Domaniç
authors.initials: D
authors.lastname: Lavery
authors.forename: David S
authors.initials: DS
authors.lastname: Millar
authors.forename: Sergejs
authors.initials: S
authors.lastname: Makovejs
authors.forename: Benn C
authors.initials: BC
authors.lastname: Thomsen
authors.forename: Robert I
authors.initials: RI
authors.lastname: Killey
authors.forename: Seb J
authors.initials: SJ
authors.lastname: Savory
authors.forename: Polina
authors.initials: P
authors.lastname: Bayvel