256-QAM (64 Gb/s) Coherent Optical Transmission Over 160 km With an Optical Bandwidth of 5.4 GHz |
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| Authors: | Nakazawa M. Okamoto S. Omiya T. Kasai K. Yoshida M. |
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| Affiliation: | Research Institute of Electrical Communication, Tohoku University, Aoba-ku, Japan; |
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| Abstract: | We report a polarization-multiplexed (Pol-Mux) 4-Gsymbol/s 256 quadrature amplitude modulation (QAM) coherent optical transmission over 160 km. A 64-Gb/s data signal was successfully transmitted with an optical bandwidth of 5.4 GHz. We also describe a Pol-Mux, 10-Gsymbol/s, 128- and 64-QAM (140 and 120 Gb/s) transmission over 150 km. |
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