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Experimental investigation of 126-Gb/s 6PolSKQPSK signals

: Fischer, J.K.; Alreesh, S.; Elschner, R.; Frey, F.; Meuer, C.; Molle, L.; Schmidt-Langhorst, C.; Tanimura, T.; Schubert, C.

Postprint (PDF; )

Optics Express 20 (2012), Nr.26, S.B232-B237
ISSN: 1094-4087
Zeitschriftenaufsatz, Elektronische Publikation
Fraunhofer HHI ()

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 dualpolarization 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.