TY - JOUR AV - public SP - 11345 N2 - In the design of fiber links for both continental and transoceanic optical communication systems, the optimization of span length is of high importance from both performance and cost perspectives. In this work, the maximization of signal-to-noise ratio (SNR) is investigated by optimizing the span length in wideband (up to 4.5-THz) Nyquist-spaced optical fiber communication systems. A simple and accurate closed-form expression of the optimal span length is provided, and a quick estimation of SNR is also described for practically feasible and cost-effective span length values. ID - discovery10146806 EP - 11359 UR - https://doi.org/10.1364/OE.453307 N1 - © 2022 Optica Publishing Group. Published by Optica Publishing Group under the terms of the Creative Commons Attribution 4.0 License (http://creativecommons.org/licenses/by/4.0/). Y1 - 2022/03/28/ A1 - Liu, Z A1 - Xu, T A1 - Jin, C A1 - Xu, T A1 - Tan, M A1 - Zhao, J A1 - Liu, T JF - Optics Express TI - Analytical optimization of wideband nonlinear optical fiber communication systems VL - 30 PB - Optica Publishing Group IS - 7 ER -