title: Comparison of 8 × 112 Gb/s PS-QPSK and PDM-QPSK signals over transoceanic distances.
abstract: We experimentally investigate polarization-switched quadrature phase-shift keying (PS-QPSK) with a symbol rate of 37.3 GBd corresponding to a bit rate of 112 Gb/s. In a wavelength-division multiplexing (WDM) experiment with 50 GHz channel spacing, the transmission performance of PS-QPSK is compared to that of polarization-division multiplexed QPSK (PDM-QPSK) over an EDFA amplified ultra-large-effective-area fiber link. For a bit-error ratio (BER) of 3.8 × 10(-3), the achieved transmission distance is 11000 km for PS-QSPK and 10000 km for PDM-QPSK.
authors: Dept. Photonic Networks and Systems, Fraunhofer Institute for Telecommunications Heinrich Hertz Institute, Einsteinufer 37, 10587 Berlin, Germany. markus.noelle@hhi.fraunhofer.de
authors: Markus
authors: M
authors: Nölle
authors: Johannes Karl
authors: JK
authors: Fischer
authors: Lutz
authors: L
authors: Molle
authors: Carsten
authors: C
authors: Schmidt-Langhorst
authors: David
authors: D
authors: Peckham
authors: Colja
authors: C
authors: Schubert
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D009792:Oceans and Seas; D055096:Optical Devices; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*