相关实验视频
Updated: May 16, 2025

07:45
Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
10.7K
最多可达182 GBd的PAM-4光学互连,消除了接收方DSP等分.
Optics letters
|April 1, 2025
概括
这项研究引入了用于光学互连的薄膜酸调制器,显著降低了功耗和延迟. 它实现了高数据速率和错误纠正值,提高了人工智能集群和计算网络的性能.
科学领域:
- 光子学和光学通信技术
- 综合光子学 综合光子学
- 高速数据传输的数据传输.
背景情况:
- 人工智能 (AI) 集群和计算网络需要低功耗,低延迟的光学互连来实现有效的扩展.
- 传统的强度调制与直接检测 (IM/DD) 的光学互连在很大程度上依赖于数字信号处理 (DSP),增加功耗和延迟.
研究的目的:
- 为了比较线性接收光学 (LRO) 与完全DSP解决方案的性能,使用宽带薄膜基酸盐 (TFLN) 马赫-泽恩德调制器 (MZM) 芯片.
- 通过最小化接收端DSP来证明光学互连的功耗和延迟减少.
主要方法:
- 使用宽带薄膜酸 (TFLN) 马赫-泽恩德调制器 (MZM) 芯片.
- 在LRO和完全基于DSP的光学互连解决方案之间比较性能指标.
- 评估的比特错误率 (BERs) 与预期错误纠正 (FEC) 值相比.
主要成果:
- 实现了154 GBd PAM4和190 GBd OOK信号的生成,其BER值低于KP4-FEC值.
- 在150米的单模光纤上成功传输了182 GBd的PAM4.
- 产生了196 GBd的OK信号,BER低于20%的软决策前置错误校正 (SD-FEC) 值,消除了接收端DSP等分.
结论:
- 该TFLN MZM芯片使光学互连能够大大降低功耗和延迟.
- 在保持高带宽性能的同时,消除接收端等级 DSP 确保了未来计算网络的广泛互操作性.
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