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Title: Nonlinear frequency division multiplexing with b-modulation : shifting the energy barrier
Authors: Gui, T 
Zhou, G 
Lu, C 
Lau, APT 
Wahls, S
Issue Date: 2018
Publisher: Optical Society of America
Source: Optics express, Oct. 2018, v. 26, no. 21, p. 27978-27990 How to cite?
Journal: Optics expressonline only 
Abstract: The recently proposed b-modulation method for nonlinear Fourier transform-based fiber-optic transmission offers explicit control over the duration of the generated pulses and therewith solves a longstanding practical problem. The currently used b-modulation however suffers from a fundamental energy barrier. There is a limit to the energy of the pulses, in normalized units, that can be generated. In this paper, we discuss how the energy barrier can be shifted by proper design of the carrier waveform and the modulation alphabet. In an experiment, it is found that the improved b-modulator achieves both a higher Q-factor and a further reach than a comparable conventional b-modulator. Furthermore, it performs significantly better than conventional approaches that modulate the reflection coefficient.
EISSN: 1094-4087
DOI: 10.1364/OE.26.027978
Rights: © 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement (
© 2018 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.
Journal © 2018
The following publication Gui, T., Zhou, G., Lu, C., Lau, A.P.T., & Wahls, S. (2018). Nonlinear frequency division multiplexing with b-modulation : shifting the energy barrier. Optics express, 26 (21), 27978-27990 is available at
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