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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 24 — Nov. 21, 2011
  • pp: 24370–24375

Comparison of 8 × 112 Gb/s PS-QPSK and PDM-QPSK signals over transoceanic distances

Markus Nölle, Johannes Karl Fischer, Lutz Molle, Carsten Schmidt-Langhorst, David Peckham, and Colja Schubert  »View Author Affiliations

Optics Express, Vol. 19, Issue 24, pp. 24370-24375 (2011)

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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.

© 2011 OSA

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(060.4080) Fiber optics and optical communications : Modulation

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: September 22, 2011
Revised Manuscript: October 24, 2011
Manuscript Accepted: October 29, 2011
Published: November 14, 2011

Markus Nölle, Johannes Karl Fischer, Lutz Molle, Carsten Schmidt-Langhorst, David Peckham, and Colja Schubert, "Comparison of 8 × 112 Gb/s PS-QPSK and PDM-QPSK signals over transoceanic distances," Opt. Express 19, 24370-24375 (2011)

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  1. M. Salsi, H. Mardoyan, P. Tran, C. Koebele, E. Dutisseuil, G. Charlet, and S. Bigo, “155×100Gbit/s coherent PDM-QPSK transmission over 7,200km,” in Proc. 35th Eur. Conf. Opt. Commun., Sept. 2009, paper PD2.5.
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