@ARTICLE {8985,
author={V. C. Duarte  and A. Shahpari and M. V. Drummond and A. Teixeira and R.N.  Nogueira},
doi={10.1002/mop.28121},
journal={Microwave and Optical Tech. Letters},
title={All-optical OOK-to-QPSK modulation format conversion based on XPM},
year={2014},
month={February},
volume={56},
number={2},
pages={355-359},
ISSN={0895-2477}
}