Conference Proceedings
Reinventing optical direct modulation by frequency chirp
D Che, F Yuan, Q Yang, H Khodakarami, Y Wang, J Fang, W Shieh
Asia Communications and Photonics Conference ACP | IEEE | Published : 2016
Abstract
Frequency chirp used to be a transmission barrier for optical direct modulation (DM) systems. We reinvent DM by treating the chirp as complex modulation, which significantly increases the OSNR sensitivity of DM based coherent systems.