Abstract
We propose a 4\( \times \)25-Gb/s intensity-modulated direct detection (IM/DD) duo-binary system with 50-GHz channel spacing. Both of the modulator and photodetector (PD) have 10-GHz 3-dB electrical bandwidth. At receiver, least mean square (LMS) algorithm is used to compensate the signal distortion after transmission. After 20-km standard single mode fiber (SSMF) transmission, LMS algorithm improves about 2-dB receive sensitivity at forward error correction (FEC) limit (BER = \({10^{ - 3}}\)) in duo-binary system. With LMS algorithm, duo-binary system has about 5-dB receive sensitivity improvement at FEC limit compared to on-off keying (OOK) system over 20-km SSMF transmission. This paper proposes a feasible scheme for future high-speed passive optical network (PON).
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Acknowledgments
This work was supported in part by National Natural Science Foundation of China (61271192, 61427813, 61331010); National 863 Program of China (2013AA013401); Research Fund of ZTE Corporation.
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Guo, M., Zhou, J., Tang, X., Qiao, Y. (2018). 4\( \times \)25-Gb/s Duo-Binary System over 20-km SSMF Transmission with LMS Algorithm . In: Chen, Q., Meng, W., Zhao, L. (eds) Communications and Networking. ChinaCom 2016. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 209. Springer, Cham. https://doi.org/10.1007/978-3-319-66625-9_40
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DOI: https://doi.org/10.1007/978-3-319-66625-9_40
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