Related Experiment Video
Updated: May 15, 2026
Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
Experimental Investigation of 126-Gb/s 6PolSK-QPSK signals
Johannes Karl Fischer1, Saleem Alreesh, Robert Elschner
1Fraunhofer Institute for Telecommunications Heinrich Hertz Institute, Department Photonic Networks and Systems, Einsteinufer 37, 10587 Berlin, Germany. johannes.fischer@hhi.fraunhofer.de
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.
