TY  - JOUR
A1  - Semrau, D
A1  - Killey, R
A1  - Bayvel, P
JF  - Optics Express
SN  - 1094-4087
UR  - https://doi.org/10.1364/OE.25.013024
ID  - discovery1576022
N2  - As the bandwidths of optical communication systems are increased to maximize channel capacity, the impact of stimulated Raman scattering (SRS) on the achievable information rates (AIR) in ultra-wideband coherent WDM systems becomes significant, and is investigated in this work, for the first time. By modifying the GN-model to account for SRS, it is possible to derive a closed-form expression that predicts the optical signal-to-noise ratio of all channels at the receiver for bandwidths of up to 15 THz, which is in excellent agreement with numerical calculations. It is shown that, with fixed modulation and coding rate, SRS leads to a drop of approximately 40% in achievable information rates for bandwidths higher than 15 THz. However, if adaptive modulation and coding rates are applied across the entire spectrum, this AIR reduction can be limited to only 10%.
N1  - This work is licensed under a Creative Commons Attribution 4.0 International License. The images
or other third party material in this article are included in the article?s Creative Commons license,
unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license,
users will need to obtain permission from the license holder to reproduce the material. To view a copy of this
license, visit http://creativecommons.org/licenses/by/4.0/
IS  - 12
EP  - 13034
Y1  - 2017/05/30/
AV  - public
VL  - 25
SP  - 13024
TI  - Achievable rate degradation of ultra-wideband coherent fiber communication systems due to stimulated Raman scattering
ER  -