Title :
56 Gb/s, PAM-4 transmission over 25 km, using IQ modulator and unequally spaced levels
Author :
Prodaniuc, Cristian ; Stojanovic, Nebojsa ; Karinou, Fotini ; Goeger, Gernot ; Zhang Qiang ; Llorente, Roberto
Author_Institution :
Huawei Technol. Dusseldorf GmbH, Munich, Germany
Abstract :
We propose a PAM-4 modulation scheme with unequally spaced levels in order to mitigate chirp effects caused by IQ modulators. Experimental results of 56 Gb/s transmission over 25 km link demonstrate the robustness of this modulation concept.
Keywords :
optical communication equipment; optical links; optical modulation; pulse amplitude modulation; IQ modulator; PAM-4 modulation scheme; PAM-4 transmission; bit rate 56 Gbit/s; chirp effects; optical link; unequally spaced levels; Chirp; Optical fiber communication; Optical fibers; Optical modulation; Optical pulses;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
