@article{
  author = {J. Leibrich and A. Ali and H. Paul and W. Rosenkranz and K.-D. Kammeyer},
  year = {2009},
  month = {Aug},
  title = {Impact of Modulator Bias on the OSNR Requirement of Direct-Detection Optical OFDM},
  volume = {21},
  number = {15},
  pages = {1033-1035},
  URL = {http://dx.doi.org/10.1109/LPT.2009.2022174},
  journal={IEEE Photonics Technology Letters}
}