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Nonlinear Transmission Performance of Higher-Order Modulation Formats

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5 Author(s)
Behrens, C. ; Dept. of Electron. & Electr. Eng., Univ. Coll. London, London, UK ; Killey, R.I. ; Savory, S.J. ; Ming Chen
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We investigate the dependence of nonlinear penalties on symbol-rate in wavelength-division-multiplex (WDM)-transmission systems while maintaining a fixed spectral efficiency for several polarization-division-multiplexed (PDM) modulation formats. Transmission performance is found to be improved by up to 1.6 dB for lower symbol rates over the range 3.5-56 GBd for the case of WDM transmission.

Published in:

Photonics Technology Letters, IEEE  (Volume:23 ,  Issue: 6 )