Abstract

The multi-eigenvalue multiplexing-based discrete spectrum-modulated nonlinear frequency-division multiplexing (DS-NFDM) system with higher-order modulation format has been demonstrated experimentally. After designing the coefficients of the eigenvalue set and the constellation point distribution of 16-amplitude phase shift keying (16-APSK), the realizations of 14-, 30-, and 46-eigenvalue multiplexed DS-NFDM signals have been implemented. The results show that 46-eigenvalue and 30-eigenvalue multiplexed DS-NFDM signals can transmit 50 km and 400 km over a nonzero dispersion-shifted fiber (NZDSF) under soft-decision forward error correction (SD-FEC) threshold of 2.4E-2, respectively. This demonstration shows for the first time, to the best of our knowledge, the record for multiplexed eigenvalue number and data rate of the multiple-eigenvalue-based DS-NFDM system.

© 2024 Optica Publishing Group

Joint equalization of frequency offset and phase noise using two-stage cascaded extended Kalman filter for discrete spectrum 16/64APSK NFDM systems

Hongbing Gao, Hengying Xu, Tingting Dong, Donghu Yao, Yining Zhang, Chenglin Bai, Lishan Yang, Xusheng Li, Zukai Sun, and Yaxuan Fan
Opt. Express 32(4) 6366-6381 (2024)

Blind frequency offset estimation method based on a minimum phase correction error for a full spectrum modulated NFDM system

Jianqing He, Jianping Li, Yuwen Qin, Xinkuo Yu, Tao Huang, Gai Zhou, and Songnian Fu
Opt. Lett. 49(9) 2313-2316 (2024)

Delta-sigma modulation supporting the 4194304QAM dual polarization signal at the W-band transmission over a 4.6 km wireless distance

Jiaxuan Liu, Jianjun Yu, Xianming Zhao, Long Zhang, Xiongwei Yang, Yi Wei, Mingxu Wang, Bohan Sang, and Feng Zhao
Opt. Lett. 49(7) 1644-1647 (2024)

Noise equalization scheme based on complex-valued ANN for multiple-eigenvalue modulated nonlinear frequency division multiplexing systems

Xiuhua Lv, Chenglin Bai, Qi Qi, Hengying Xu, Xueyuan Luo, Xinyu Chi, Lishan Yang, and LiXia Xi
Appl. Opt. 61(36) 10755-10765 (2022)

Dual high-order QAM-modulated mm-wave signal transmission in the Q-band enabled by simple IM/DD architecture and bandpass delta-sigma modulation

Hengxin Yan, Xinying Li, Xiaolong Pan, Tangyao Xie, Liye Fang, Jiahao Bi, Han Jiang, and Xiangjun Xin
Opt. Lett. 49(8) 1919-1922 (2024)