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1 February 2014 Comparison of discrete multi-tone and pulse amplitude modulation for beyond 100 Gbps short-reach application
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Abstract
Advanced multi-level modulation is an attractive modulation technique for beyond 100 Gbps short reach optical transmission system. Above all, discrete multi-tone (DMT) technique and pulse amplitude modulation (PAM) technique are the strong candidates.

We compared the 100 Gbps transmission characteristics of DMT and PAM by simulation and experiment. The comparison was done by using same devices and only the digital signal processing was changed. We studied the transmission distance dependence for 0.5 to 40 km and the impact of the frequency responses of the optical devices. Finally we discuss the features of the both modulation techniques.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Masato Nishihara, Yutaka Kai, Toshiki Tanaka, Tomoo Takahara, Lei Li, Weizhen Yan, Bo Liu, Zhenning Tao, and Jens C. Rasmussen "Comparison of discrete multi-tone and pulse amplitude modulation for beyond 100 Gbps short-reach application", Proc. SPIE 9008, Optical Metro Networks and Short-Haul Systems VI, 900804 (1 February 2014); https://doi.org/10.1117/12.2036062
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