Title :
Compensation technique for distorted QAM signal constellations generated by semiconductor IQ modulators
Author :
Wakayama, Yuki ; Kikuchi, Naoya
Author_Institution :
Central Res. Lab., Hitachi, Ltd., Kokubunji, Japan
fDate :
June 30 2013-July 4 2013
Abstract :
We have proposed a novel digital signal processing based compensation technique for distorted QAM signal constellation and also experimentally confirmed the technique could improve its error vector magnitude.
Keywords :
electro-optical modulation; quadrature amplitude modulation; signal processing; digital signal processing; distorted QAM signal constellations; error vector magnitude; semiconductor IQ modulators; Constellation diagram; Distortion; Optical distortion; Optical modulation; Quadrature amplitude modulation; Trajectory;
Conference_Titel :
OptoElectronics and Communications Conference held jointly with 2013 International Conference on Photonics in Switching (OECC/PS), 2013 18th
Conference_Location :
Kyoto
