概括
本研究介绍了一种3D概率造型方法,用于空心纤维的非均位操纵. 该技术提高了接收器灵敏度和传输效率,用于高速光通信.
科学领域:
- 光学通信是指光学通信.
- 信号处理 信号处理
- 光纤光学是指光纤的使用.
背景情况:
- 空心纤维为高速光学传输提供了潜力.
- 概率造型 (PS) 提高光学系统的光谱效率和功率效率.
- 像PAM4和QAM这样的高级调制格式对于增加数据速率至关重要.
研究的目的:
- 提出和验证一种使用非统一位操纵 (NUBM) 进行空心光纤传输的新型3D概率造型 (PS) 方法.
- 在高速光通信系统中提高接收器灵敏度和传输性能.
- 为了研究3D-PS-PAM4信号组合到3D-64QAM星座的有效性.
主要方法:
- 开发了一种非统一的比特操作 (NUBM) 技术,用于比特级预处理.
- 采用灰色映射来生成具有更高内信号水平概率的PAM4符号.
- 将三个概率形状的PAM4 (PS-PAM4) 信号结合起来,形成一个3D-64QAM星座.
- 在1.5公里的空心光纤链路上实验验验证了该方案.
主要成果:
- 实现了15.75 Gb/s的信号传输速率.
- 与均的3D-64QAM和2D-PS-64QAM相比,在7%的高清FEC值下,获得了1.7dB和3.2dB的受体灵敏度改进.
- 拟议的3D-PS-64QAM方案有效降低了平均传输功率.
结论:
- 基于NUBM的拟议的3D概率造型方法对空心纤维传输有效.
- 这种技术可以显著提高接收器的灵敏度,并提高传输效率.
- 该研究为下一代高速光通信系统提供了高性能解决方案.
相关概念视频
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01:15Thin-Walled Hollow Shafts
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01:18Unsymmetric Bending
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01:23Design of Prismatic Beams for Bending
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01:27Uniform Depth Channel Flow
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