title: Experimental Investigation of 126-Gb/s 6PolSK-QPSK signals.
abstract: We experimentally generate 28-GBd 6-ary polarization-shift keying quadrature phase-shift keying (6PolSK-QPSK) signals by utilizing a high-speed 4-channel digital-to-analog converter and an integrated dual-polarization I/Q modulator. In WDM transmission experiments over up to 4800 km standard single-mode fiber, we compare the performance of 126-Gb/s 6PolSK-QPSK and 112-Gb/s polarization-division multiplexing (PDM) QPSK signals. Furthermore, we discuss the implications of applying an inner Reed-Solomon RS(511,455) forward error correction code in order to correct burst errors due to the anti-Gray mapping of 6PolSK-QPSK.
authors.affiliation: Fraunhofer Institute for Telecommunications Heinrich Hertz Institute, Department Photonic Networks and Systems, Einsteinufer 37, 10587 Berlin, Germany. johannes.fischer@hhi.fraunhofer.de
authors.forename: Johannes Karl
authors.initials: JK
authors.lastname: Fischer
authors.forename: Saleem
authors.initials: S
authors.lastname: Alreesh
authors.forename: Robert
authors.initials: R
authors.lastname: Elschner
authors.forename: Felix
authors.initials: F
authors.lastname: Frey
authors.forename: Christian
authors.initials: C
authors.lastname: Meuer
authors.forename: Lutz
authors.initials: L
authors.lastname: Molle
authors.forename: Carsten
authors.initials: C
authors.lastname: Schmidt-Langhorst
authors.forename: Takahito
authors.initials: T
authors.lastname: Tanimura
authors.forename: Colja
authors.initials: C
authors.lastname: Schubert