@INPROCEEDINGS {316,
author={J.  Rebola and A. Cartaxo},
doi={},
booktitle={IEEE Lasers and Electro Optics Society Annual Meeting - LEOS},
title={Optimisation of the duty-cycle of RZ signals in optically preamplified receivers with arbitrary optical filtering},
year={2002},
month={November},
volume={2},
pages={780-781} 
}