Title :
QAM based coherent transmission technologies using DSP
Author :
Nakazawa, Masataka
Author_Institution :
Tohoht Univ., Sendai
Abstract :
Recent progress on QAM coherent transmission is described. QAM transmission started at 20 Msymbol/s, 64-128 QAM, and recently reached 1 Gsymbol/s, 64 QAM, carrying 12 Gbit/s data in a 2 GHz optical bandwidth.
Keywords :
multiplexing; optical communication; quadrature amplitude modulation; QAM coherent optical signal; QAM coherent transmission; bandwidth 2 GHz; bit rate 12 Gbit/s; optical bandwidth; polarization-multiplexed QAM transmission; Amplitude modulation; Digital signal processing; Erbium-doped fiber amplifier; Frequency; Optical fiber polarization; Optical filters; Optical mixing; Optical polarization; Optical transmitters; Quadrature amplitude modulation;
Conference_Titel :
IEEE/LEOS Summer Topical Meetings, 2007 Digest of the
Conference_Location :
Portland, OR
Print_ISBN :
1-4244-0926-8
Electronic_ISBN :
1099-4742
DOI :
10.1109/LEOSST.2007.4288324
