A Closed-form Expression of the Gaussian Noise Model Supporting O-Band Transmission
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arXiv
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| Format: | Preprint |
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2025
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| author | Gan, Zelin Buglia, Henrique Aparecido, Romulo Jarmolovičius, Mindaugas Sillekens, Eric Yang, Jiaqian Sohanpal, Ronit Killey, Robert I. Bayvel, Polina |
| author_facet | Gan, Zelin Buglia, Henrique Aparecido, Romulo Jarmolovičius, Mindaugas Sillekens, Eric Yang, Jiaqian Sohanpal, Ronit Killey, Robert I. Bayvel, Polina |
| contents | We present a novel closed-form model for nonlinear interference (NLI) estimation in low-dispersion O-band transmission systems. The formulation incorporates the four-wave mixing (FWM) efficiency term as well as the coherent contributions of self- and cross-phase modulation (SPM/XPM) across multiple identical spans. This extension enables accurate evaluation of the NLI in scenarios where conventional closed-form Gaussian Noise (GN) models are limited. The proposed model is validated against split-step Fourier method (SSFM) simulations and numerical integration across 41-161 channels, with a 96 GBaud symbol rate, bandwidths of up to 16.1 THz, and transmission distances from 80 to 800 km. Results show a mean absolute error of the NLI signal-to-noise ratio (SNR) below 0.22 dB. The proposed closed-form model offers an efficient and accurate tool for system optimisation in O-band coherent transmission. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_11867 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A Closed-form Expression of the Gaussian Noise Model Supporting O-Band Transmission Gan, Zelin Buglia, Henrique Aparecido, Romulo Jarmolovičius, Mindaugas Sillekens, Eric Yang, Jiaqian Sohanpal, Ronit Killey, Robert I. Bayvel, Polina Signal Processing We present a novel closed-form model for nonlinear interference (NLI) estimation in low-dispersion O-band transmission systems. The formulation incorporates the four-wave mixing (FWM) efficiency term as well as the coherent contributions of self- and cross-phase modulation (SPM/XPM) across multiple identical spans. This extension enables accurate evaluation of the NLI in scenarios where conventional closed-form Gaussian Noise (GN) models are limited. The proposed model is validated against split-step Fourier method (SSFM) simulations and numerical integration across 41-161 channels, with a 96 GBaud symbol rate, bandwidths of up to 16.1 THz, and transmission distances from 80 to 800 km. Results show a mean absolute error of the NLI signal-to-noise ratio (SNR) below 0.22 dB. The proposed closed-form model offers an efficient and accurate tool for system optimisation in O-band coherent transmission. |
| title | A Closed-form Expression of the Gaussian Noise Model Supporting O-Band Transmission |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2510.11867 |