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13 October 2020 Probabilistically shaped CAP-9 transmission based on reverse distribution model
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Abstract

A probabilistically shaped 9-ary carrierless amplitude and phase (CAP-9) optical modulation format based on a reverse distribution model is proposed. We experimentally demonstrate the transmission of 33.3-Gb  /  s PS-CAP-9 signals over 25-km standard single-mode fiber in an intensity-modulation and direct-detection system. The results indicate that the proposed scheme outperforms the conventional uniform CAP-16 and the conventional PS-CAP-16 in receiver sensitivity by 1.2 and 0.4 dB at the threshold of 3.8  ×  10  −  3   BER, respectively.

© 2020 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2020/$28.00 © 2020 SPIE
Ying Zhang, Bo Liu, Jianxin Ren, and Xiangyu Wu "Probabilistically shaped CAP-9 transmission based on reverse distribution model," Optical Engineering 59(10), 106104 (13 October 2020). https://doi.org/10.1117/1.OE.59.10.106104
Received: 24 May 2020; Accepted: 23 September 2020; Published: 13 October 2020
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