Title :
Long-Haul Transmission of PS-QPSK at 100 Gb/s Using Digital Backpropagation
Author :
Lavery, Domaniç ; Behrens, Carsten ; Makovejs, Sergejs ; Millar, David S. ; Killey, Robert I. ; Savory, Seb J. ; Bayvel, Polina
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. Coll. London, London, UK
Abstract :
We experimentally investigate the generation and long-haul transmission of polarization-switched quadrature phase shift keying (PS-QPSK) at an uncoded datarate of 112 Gbit/s (37.4 GBd). In what is the first demonstration of nonlinearity compensation for PS-QPSK, digital backpropagation is applied in order to evaluate performance improvements. We find that, even at this high symbol rate, the maximum transmission distance of this format can be increased by 20% by employing digital backpropagation.
Keywords :
backpropagation; quadrature phase shift keying; PS-QPSK; bit rate 100 Gbit/s; digital backpropagation; long-haul transmission; polarization-switched quadrature phase shift keying; Backpropagation; Bandwidth; Optical attenuators; Optical switches; Optimized production technology; Phase shift keying; Coherent; long-haul transmission; nonlinear backpropagation; polarization-switched; quadrature phase shift keying (QPSK);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2011.2175720
