Title :
Transmission of 5×62 Gbit/s DWDM coherent OFDM with a spectral efficiency of 7.2 bit/s/Hz using Joint 64-QAM and 16-QAM modulation
Author :
Nölle, Markus ; Molle, Lutz ; Gross, Dirk-Daniel ; Freund, Ronald
Author_Institution :
Heinrich-Hertz-Inst., Fraunhofer Inst. for Telecommun., Berlin, Germany
Abstract :
Transmission of 5 × 62 Gbit/s polarization multiplexed coherent OFDM is demonstrated over 80 km SSMF. Using 64-QAM and 16-QAM simultaneously allows reducing the channel spacing and makes a net spectral efficiency of 7.2 bit/s/Hz possible.
Keywords :
OFDM modulation; optical modulation; quadrature amplitude modulation; wavelength division multiplexing; 16-QAM modulation; DWDM coherent OFDM; channel spacing; distance 80 km; joint 64-QAM modulation; net spectral efficiency; polarization multiplexed coherent OFDM; Bandwidth; OFDM modulation; Optical crosstalk; Optical filters; Optical interferometry; Optical modulation; Optical polarization; Optical receivers; Optical signal processing; Wavelength division multiplexing;
Conference_Titel :
Optical Fiber Communication (OFC), collocated National Fiber Optic Engineers Conference, 2010 Conference on (OFC/NFOEC)
Conference_Location :
San Diego, CA
Electronic_ISBN :
978-1-55752-884-1
