Title :
20-gb/s quaternary intensity modulation based on duobinary modulation with unequal amplitude in two polarizations
Author :
Ibrahim, Selwan K. ; Bhandare, Suhas ; Noé, Reinhold
Author_Institution :
Opt. Commun. & High Frequency Eng., Paderborn Univ., Germany
fDate :
7/1/2006 12:00:00 AM
Abstract :
Two 10-Gb/s duobinary data streams are combined with unequal amplitudes and two orthogonal polarizations to generate a narrowband 20-Gb/s (10-Gbaud) quaternary intensity modulation. Sensitivity and chromatic dispersion tolerance of this modulation format, measured with a pseudorandom binary sequence 27-1, are -18.6 dBm and 530 ps/nm, respectively.
Keywords :
binary sequences; intensity modulation; optical fibre communication; optical fibre dispersion; optical fibre polarisation; optical modulation; random sequences; 10 Gbit/s; 20 Gbit/s; chromatic dispersion tolerance; duobinary data streams; duobinary modulation; modulation format; narrowband intensity modulation; optical communication; orthogonal polarizations; polarization-division-multiplexed signal; pseudorandom binary sequence; quaternary intensity modulation; unequal-amplitude modulation; Amplitude modulation; Intensity modulation; Optical attenuators; Optical filters; Optical modulation; Optical polarization; Optical receivers; Optical sensors; Optical transmitters; Signal generators; Optical communication; optical modulation; polarization;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.877588
