@article{Soenen_2015,
title={40 Gb/s PAM-4 Transmitter IC for Long-Wavelength VCSEL Links},
volume={27},
ISSN={1941-0174},
url={http://dx.doi.org/10.1109/lpt.2014.2372041},
DOI={10.1109/lpt.2014.2372041},
number={4},
journal={IEEE Photonics Technology Letters},
publisher={Institute of Electrical and Electronics Engineers (IEEE)},
author={Soenen,
Wouter and Vaernewyck,
Renato and Xin Yin and Spiga,
Silvia and Amann,
Markus-Christian and Kaur,
Kamalpreet S. and Bakopoulos,
Paraskevas and Bauwelinck,
Johan},
year={2015},
month=feb,
pages={344–347} }