Nonlinear Fiber-Optic Communications Using Nonlinear Frequency Division Multiplexing

2016 ◽  
Author(s):  
Tao Gui ◽  
Zhenhua Dong ◽  
Kangping Zhong ◽  
Chao Lu ◽  
P.K.A. Wai ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Frequency Division Multiplexing ◽  
Nonlinear Frequency ◽  
Frequency Division ◽  
Fiber Optic Communications ◽  
Nonlinear Fiber ◽  
Nonlinear Fiber Optic

scholarly journals Nonlinear frequency domain PMD modeling and equalization for nonlinear frequency division multiplexing transmission

2021 ◽  
Author(s):  
Xulun Zhang ◽  
Lixia Xi ◽  
Jiacheng Wei ◽  
Shucheng Du ◽  
wenbo zhang ◽  
...  
Keyword(s):  
Frequency Domain ◽  
Frequency Division Multiplexing ◽  
Nonlinear Frequency ◽  
Frequency Division

scholarly journals Bounds on the Transmit Power of b-Modulated NFDM Systems in Anomalous Dispersion Fiber

Entropy ◽  
2020 ◽  
Vol 22 (6) ◽  
pp. 639 ◽  
Author(s):  
Shrinivas Chimmalgi ◽  
Sander Wahls
Keyword(s):  
Upper Bound ◽  
Fiber Optic ◽  
Anomalous Dispersion ◽  
Signal Duration ◽  
Nonlinear Frequency ◽  
Frequency Division ◽  
Signal To Noise ◽  
Transmit Power ◽  
Spectral Singularities ◽  
Nonlinear Spectrum

The performance of various nonlinear frequency division multiplexed (NFDM) fiber-optic transmission systems has been observed to decrease with increasing signal duration. For a class of NFDM systems known as b-modulators, we show that the nonlinear bandwidth, signal duration, and power are coupled when singularities in the nonlinear spectrum are avoided. When the nonlinear bandwidth is fixed, the coupling results in an upper bound on the transmit power that decreases with increasing signal duration. Signal-to-noise ratios are consequently expected to decrease, which can help explain drops in performance observed in practice. Furthermore, we show that there is often a finite bound on the transmit power of b-modulators even if spectral singularities are allowed.

scholarly journals The Impact of PMD on Single-Polarization Nonlinear Frequency Division Multiplexing

2019 ◽  
Vol 37 (4) ◽  
pp. 1264-1272 ◽  
Author(s):  
Iman Tavakkolnia ◽  
Majid Safari
Keyword(s):  
Frequency Division Multiplexing ◽  
Nonlinear Frequency ◽  
Frequency Division ◽  
Single Polarization ◽  
The Impact

scholarly journals Exact nonlinear frequency division multiplexing in lossy fibers

2019 ◽  
Author(s):  
V. Bajaj ◽  
S. Chimmalgi ◽  
V. Aref ◽  
S. Wahls
Keyword(s):  
Frequency Division Multiplexing ◽  
Nonlinear Frequency ◽  
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.

Self-Referencing Frequency Division Multiplexing Technique For Fiber Optic Sensors

1988 ◽  
Author(s):  
W. B. Spillman, Jr. ◽  
B R. Kline ◽  
J. R. Lord ◽  
Peter L. Fuhr
Keyword(s):  
Fiber Optic ◽  
Fiber Optic Sensors ◽  
Frequency Division Multiplexing ◽  
Frequency Division
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