Add to BibSonomy
Abstract
We demonstrate a multichannel entropy loading mechanism in an optical frequency comb-based coherent communication system. In high-capacity wavelength division multiplexing communications, the individual laser sources can be replaced by an optical frequency comb, thus reducing the complexity and energy consumption of the transmitter. However, the power variation among different comb lines will lead to performance discrepancies. Spectral flattening filters can be adopted to suppress the variation at the expense of an additional system loss. Alternatively, by applying probabilistic shaping, we have implemented multichannel entropy loading to facilitate a continuous adaptation of the source entropy. The data rate can be dynamically allocated according to the performance of each channel. Through the loading scheme, the non-uniform performances across the channels are effectively mitigated, achieving a capacity enhancement of 34.91 Gbit/s.
© 2024 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Xiaojian Hong, Chao Fei, Guowu Zhang, Ji Du, and Sailing He
Opt. Lett. 44(3) 558-561 (2019)
An Yan, Guoqiang Li, Sizhe Xing, Wangwei Shen, Yongzhu Hu, Aolong Sun, Jianyang Shi, Ziwei Li, Chao Shen, Nan Chi, and Junwen Zhang
Opt. Lett. 49(7) 1656-1659 (2024)
Xin Shi, Mingyi Gao, Xuejing Huang, Jiamin Fan, Xinbang Han, Xiaodi You, and Gangxiang Shen
Opt. Lett. 49(6) 1579-1582 (2024)
