TY  - JOUR
  - Rafique, D,Zhao, JA,Ellis, AD
  - 2011
  - January
  - Optics Express
  - Digital back-propagation for spectrally efficient WDM 112 Gbit/s PM m-ary QAM transmission
  - Validated
  - ()
  - COMPENSATION
  - 19
  - 5219
  - 5224
  - We report the performance of coherently-detected nine-channel WDM transmission over high dispersion fibers, using polarization multiplexed m-ary quadrature amplitude modulation (m = 4, 16, 64, 256) at 112 Gbit/s. Compensation of fiber nonlinearities via digital back-propagation enables up to 10 dB improvement in maximum transmittable power and similar to 8 dB Q(eff) improvement which translates to a nine-fold enhancement in transmission reach for PM-256QAM, where the largest improvements are associated with higher-order modulation formats. We further demonstrate that even under strong nonlinear distortion the transmission reach only reduces by a factor of similar to 2.5 for a 2 unit increase in capacity (log(2)m) when full band DBP is employed, in proportion to the required back-to-back OSNR. (C) 2011 Optical Society of America
DA  - 2011/01
ER  - 

@article{V90194259,
   = {Rafique,  D and Zhao,  JA and Ellis,  AD },
   = {2011},
   = {January},
   = {Optics Express},
   = {Digital back-propagation for spectrally efficient WDM 112 Gbit/s PM m-ary QAM transmission},
   = {Validated},
   = {()},
   = {COMPENSATION},
   = {19},
  pages = {5219--5224},
   = {{We report the performance of coherently-detected nine-channel WDM transmission over high dispersion fibers, using polarization multiplexed m-ary quadrature amplitude modulation (m = 4, 16, 64, 256) at 112 Gbit/s. Compensation of fiber nonlinearities via digital back-propagation enables up to 10 dB improvement in maximum transmittable power and similar to 8 dB Q(eff) improvement which translates to a nine-fold enhancement in transmission reach for PM-256QAM, where the largest improvements are associated with higher-order modulation formats. We further demonstrate that even under strong nonlinear distortion the transmission reach only reduces by a factor of similar to 2.5 for a 2 unit increase in capacity (log(2)m) when full band DBP is employed, in proportion to the required back-to-back OSNR. (C) 2011 Optical Society of America}},
  source = {IRIS}
}