Title :
Benefits of digital backpropagation in coherent QPSK and 16QAM fibre links
Author :
Behrens, C. ; Killey, R.I. ; Savory, S.J. ; Chen, M. ; Bayvel, P.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. Coll. London (UCL), London, UK
Abstract :
We investigate the performance of digital backpropagation in wavelength-division-multiplexed- (WDM) transmission systems using polarisation-division-multiplexed (PDM) differentially-encoded quadrature phase shift keying (QPSK) and 16-quadrature amplitude modulation (16QAM) for a range of symbol-rates. Digital backpropagation was found to be more effective for the 16QAM than QPSK format.
Keywords :
backpropagation; polarisation; quadrature amplitude modulation; quadrature phase shift keying; wavelength division multiplexing; 16-quadrature amplitude modulation; 16QAM fibre links; PDM differentially-encoded; QPSK; WDM transmission systems; digital backpropagation; polarisation-division-multiplexed; quadrature phase shift keying; wavelength-division-multiplexed; Backpropagation; Bit error rate; Nonlinear optics; Optical fiber communication; Optical fibers; Phase shift keying; Wavelength division multiplexing;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2010 Asia
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-7111-9
DOI :
10.1109/ACP.2010.5682520
