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High-speed reconfigurable free-space optical interconnects with carrierless-amplitude-phase modulation and filter-enhanced spatial modulation

机译:具有载波幅度相位调制和滤波器增强的空间调制的高速可重新配置的自由空间光学互连

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摘要

Optical technologies have been widely studied to satisfy the interconnect demand in high-performance computers and data centers, and free-space optical interconnects have been investigated for flexible card-to-card applications. To increase the interconnect speed and range, in this Letter we propose a reconfigurable free-space optical interconnect with 16-carrierless-amplitude-phase (16-CAP) symbol modulation and filter-enhanced spatial modulation (FE-SM). The 16-CAP increases the interconnect speed in the symbol domain, and the FE-SM scheme increases the speed in the spatial domain, even under highly correlated. optical interconnect channels. A 50 Gb/s reconfigurable optical interconnect is experimentally demonstrated. The results show that the impact of FE-SM on the bit error rate (BER) is negligible, while the speed is significantly improved. Compared with the conventional SM scheme, the BER is improved by over one order of magnitude. The proposed scheme is also capable of extending the interconnect range. The results show that over 70% range extension and 50% speed increase can be achieved simultaneously. The proposed scheme with a 16-CAP and FE-SM provides a promising solution in free-space optical interconnects. (C) 2020 Optical Society of America
机译:光学技术已被广泛研究,以满足高性能计算机和数据中心的互连需求,并针对灵活的卡到卡应用研究了自由空间光学互连。为了提高互连速度和范围,在这封信中,我们提出了一种可重新配置的自由空间光学互连,其具有16传销幅度相位(16-CAP)符号调制和滤波增强的空间调制(FE-SM)。 16-Cap会使符号域中的互连速度增加,并且Fe-SM方案即使在高度相关的情况下也增加了空间域中的速度。光互连通道。实验证明了50 GB / s可重新配置的光学互连。结果表明,FE-SM对误码率(BER)的影响可忽略不计,而速度显着提高。与传统的SM方案相比,BER通过一个数量级得到改善。所提出的方案也能够延长互连范围。结果表明,同时可以实现超过70%的范围延伸和50%的速度增加。具有16帽和Fe-SM的所提出的方案在自由空间光学互连中提供了有希望的解决方案。 (c)2020美国光学学会

著录项

  • 来源
    《Optics Letters》 |2020年第19期|共4页
  • 作者

    Wang Ke;

  • 作者单位

    RMIT Univ Sch Engn Royal Melbourne Inst Technol Mill Pk Melbourne Vic 3000 Australia;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
  • 关键词

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