Title :
Optical quadrature amplitude modulation (QAM) with coherent detection up to 128 states
Author :
Nakazawa, Masataka
Author_Institution :
Res. Inst. of Electr. Commun., Tohoku Univ., Sendai
Abstract :
Recent progress on single-channel and frequency-division-multiplexed (FDM) 128 QAM coherent optical transmission is presented. The spectral efficiency as high as 10 bit/s/Hz is successfully demonstrated by using polarization-multiplexing and Nyquist filter.
Keywords :
frequency division multiplexing; light transmission; optical communication; optical modulation; quadrature amplitude modulation; Nyquist filter; QAM; coherent detection; coherent optical transmission; frequency division multiplexing; optical quadrature amplitude modulation; polarization multiplexing; Bit error rate; Fiber lasers; Forward error correction; Frequency division multiplexing; High speed optical techniques; Laser stability; Optical filters; Optical modulation; Phase shift keying; Quadrature amplitude modulation; (060.1660) Coherent communications; (060.4080) Modulation;
Conference_Titel :
Optical Fiber Communication - incudes post deadline papers, 2009. OFC 2009. Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2606-5
Electronic_ISBN :
978-1-55752-865-0
