基于维级变换和 5D 星座整形的功率域叠加调制方法。

IF 3.1 2区物理与天体物理 Q2 OPTICS

Optics letters Pub Date : 2024-11-15 DOI:10.1364/OL.540774

Haojun Liu, Bo Liu, Jianxin Ren, Yaya Mao, Jianye Zhao, Zhi Liu, Tao Chen, Feng Wang, Xiangyu Wu, Shuaidong Chen, Ying Li, Xiumin Song, Zhipeng Qi

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引用次数: 0

摘要

本文提出了一种基于维级变换和五维（5D）星座整形的功率域叠加调制方法。通过堆叠规则的三角形金字塔并对其进行维度增强，实现了五维星座的几何整形。在此基础上，通过数据调制的维度变换实现了功率域的信号叠加。实验验证在 IM/DD 系统中的 2 千米七芯光纤上进行。与传统的 2D-32QAM 相比，该方法在高接收光功率下可实现 0.7 dB 增益，在误码率为 3.8 × 10-3 时可实现 0.4 dB 接收机灵敏度增益。

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Power domain superimposed modulation method based on dimensional level transformation and 5D constellation shaping.

This paper proposes a power domain superposition modulation method based on dimensional level transformation and five dimensions (5D) constellation shaping. Stacking a regular triangular pyramid and enhancing it in terms of dimensions achieves the geometric shaping of the 5D constellation. Based on this, signal superposition in the power domain is achieved through dimensional transformation for data modulation. Experimental verification was conducted on a 2 km seven-core fiber in an IM/DD system. Compared to the traditional 2D-32QAM, this method can achieve a 0.7 dB gain at high received optical power and a 0.4 dB receiver sensitivity gain at a BER of 3.8 × 10^-3.

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来源期刊

Optics letters 物理-光学

CiteScore

6.60

自引率

8.30%

发文量

2275

审稿时长

1.7 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.