Title :
Octary QAM as capacity extension for coherent UDWDM PON
Author :
Schrenk, Bernhard ; Dris, Stefanos ; Bakopoulos, Paraskevas ; Lazarou, I. ; Voigt, K. ; Zimmermann, L. ; Avramopoulos, H.
Author_Institution :
Sch. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens, Athens, Greece
Abstract :
Optical 8-QAM generation for coherent PONs with a low-complexity and flexible SOA+EAM modulator is experimentally demonstrated. 8-QAM transmission for 3Gb/s per-user bandwidth over 100km and its compatibility with high split and a channel spacing of 3GHz is verified.
Keywords :
electro-optical modulation; passive optical networks; quadrature amplitude modulation; semiconductor optical amplifiers; wavelength division multiplexing; 8-QAM transmission; bit rate 3 Gbit/s; capacity extension; channel spacing; coherent UDWDM PON; distance 100 km; flexible SOA+EAM modulator; octary QAM; optical 8-QAM generation; Bit error rate; Optical modulation; Optical noise; Optical transmitters; Passive optical networks; Quadrature amplitude modulation;
Conference_Titel :
Optical Communications (ECOC), 2012 38th European Conference and Exhibition on
Conference_Location :
Amsterdam
