远距离相干光传输快速准确波形建模的学习- ssfm方法

IF 2.5 3区物理与天体物理 Q2 OPTICS

Optics Communications Pub Date : 2025-06-13 DOI:10.1016/j.optcom.2025.132116

Jiayu Zheng , Xiang Cai , Tianhong Zhang , Fan Zhang

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引用次数: 0

摘要

本研究提出了一种新的方法——学习分裂步傅里叶变换法（L-SSFM），以取代传统的SSFM进行长距离相干光传输的波形建模，该方法在保持较高的建模精度的同时显著降低了计算复杂度。对于单通道场景，每次迭代步长为80 km的L-SSFM与步长为0.1 km的目标SSFM相比，计算时间减少了一个数量级以上。此外，在典型的7通道波分复用（WDM）场景中验证，与步长为0.01 km的目标SSFM相比，采用10 km步长的L-SSFM将计算时间缩短了近两个数量级，以确保WDM仿真精度。

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Learned-SSFM approach for fast and accurate waveform modeling of long-haul coherent optical transmission

In this research, a novel approach called the Learned split-step Fourier transform method (L-SSFM) is proposed to replace the traditional SSFM for waveform modeling of long-haul coherent optical transmission, which can achieve significantly lower computational complexity while maintaining a high modeling accuracy. For single channel scenario, the L-SSFM with an 80 km step-size per iteration, reduces the calculation time by more than one order of magnitude compared to the 0.1 km step-sized target SSFM. Furthermore, validated in a typical 7-channel wavelength division multiplexing (WDM) scenario, the L-SSFM employing a 10 km step-size reduces the calculation time by nearly two orders of magnitude, compared to the target SSFM with its step size decreased to 0.01 km to ensure WDM simulation accuracy.

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来源期刊

Optics Communications 物理-光学

CiteScore

5.10

自引率

8.30%

发文量

681

审稿时长

38 days

期刊介绍： Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.