scholarly journals Laser linewidth tolerance for nonlinear frequency division multiplexing transmission with discrete spectrum modulation

2020 ◽  
Vol 28 (7) ◽  
pp. 9642
Author(s):  
Yutian Wang ◽  
Ronghuan Xin ◽  
Songnian Fu ◽  
Ming Tang ◽  
Deming Liu
Keyword(s):  
Discrete Spectrum ◽  
Frequency Division Multiplexing ◽  
Nonlinear Frequency ◽  
Laser Linewidth ◽  
Frequency Division

scholarly journals Mitigating the Impact of Noise on Nonlinear Frequency Division Multiplexing

2020 ◽  
Vol 10 (24) ◽  
pp. 9099
Author(s):  
Stella Civelli ◽  
Enrico Forestieri ◽  
Marco Secondini
Keyword(s):  
Dispersion Compensation ◽  
Kerr Nonlinearity ◽  
Optical Fiber Communication ◽  
Frequency Division Multiplexing ◽  
Nonlinear Frequency ◽  
Frequency Division ◽  
Fiber Communication ◽  
Range Rate ◽  
Conventional Systems ◽  
The Impact

In the past years, nonlinear frequency division multiplexing (NFDM) has been investigated as a potentially revolutionary technique for nonlinear optical fiber communication. However, while NFDM is able to exploit the Kerr nonlinearity, its performance lags behind that of conventional systems. In this work, we first highlight that current implementations of NFDM are strongly suboptimal, and, consequently, oversensitive to noise: the modulation does not ensure a large minimum distance between waveforms, while the detection is not tailored to the statistics of noise. Next, we discuss improved detections strategies and modulation techniques, proposing some effective approaches able to improve NFDM. Different flavors of NFDM are compared through simulations, showing that (i) the NFDM performance can be significantly improved by employing more effective detection strategies, with a 5.6 dB gain in Q-factor obtained with the best strategy compared to the standard strategy; (ii) an additional gain of 2.7 dB is obtained by means of a simple power-tilt modulation strategy, bringing the total gain with respect to standard NFDM to 8.3 dB; and (iii) under some parameters range (rate efficiency η≤30%), the combination of improved modulation and detection allows NFDM to outperform conventional systems using electronic dispersion compensation.

scholarly journals Spectral function modulation based on nonlinear frequency division multiplexing

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Guangqiang He ◽  
Luning Wang ◽  
Chenyang Li ◽  
Siyu Liu ◽  
Weisheng Hu
Keyword(s):  
Spectral Function ◽  
Frequency Division Multiplexing ◽  
Nonlinear Frequency ◽  
Frequency Division

6.4Tb/s (16×400Gb/s) Nonlinear Frequency Division Multiplexing WDM Transmission over 640km SSMF

2021 ◽  
Author(s):  
Xinyu Chen ◽  
Xiansong Fang ◽  
Fan Yang ◽  
Hao Ming ◽  
Chenjia Li ◽  
...  
Keyword(s):  
Frequency Division Multiplexing ◽  
Nonlinear Frequency ◽  
Frequency Division ◽  
Wdm Transmission
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