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arXiv 2604.04005physics.optics
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时空平坦光学用于每秒太比特级单通道数据传输

Spatiotemporal flat optics for terabit-per-second single-channel data transmission

University of Science and Technology of China(中国科学技术大学);Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences (CAS)(中国科学院上海光学精密机械研究所);University of Chinese Academy of Sciences(中国科学院大学);Anhui University(安徽大学)

Wen-Jing Liu, Dong Zhao, Heng-Yi Wang, Jun He, Fang-Wen Sun, Ye Tian, Kun Huang

AI总结:

该研究提出一种全光时空发射器,通过光路诱导的空间到时间转换生成可控的高重复信息承载飞秒脉冲,实现每秒约3太比特的单通道数据传输,突破传统数字-模拟转换器的限制。

摘要:

全球数据流量的指数增长要求不断提高的传输速率,这一需求从根本上受到数字-模拟转换器(DAC)物理限制的制约。现有策略如多DAC阵列和光学时分复用不可避免地引入系统复杂性和协调开销。本文展示了一种全光时空发射器,通过相位调制平面衍射透镜(PDL)的光路诱导空间到时间转换,生成可控的高重复信息承载飞秒脉冲。每个脉冲作为信息位,通过轴上焦点强度状态对应'0'和'1'来编码二进制数据,通过在拓扑和常相位调制之间切换实现。任意比特之间的高实验正交性使能够近无错误地传输15×15像素灰度(8位编码)和彩色(9位编码)图像,以创纪录的单通道速率约3太比特每秒传输。摆脱电子和协调瓶颈,这种全光发射器建立了一条可扩展的高速单通道路径,朝着超高容量光学通信迈进。

英文摘要:

Exponential growth in global data traffic demands ever-increasing transmission rates--a pursuit fundamentally constrained by the physical limitations of digital-to-analog converters (DACs). Existing strategies to overcome this bottleneck, such as multi-DAC arrays and optical time-division multiplexing, inevitably introduce system complexity and coordination overhead. Here we demonstrate an all-optical spatiotemporal transmitter that generates controllable high-repetition information-carrying femtosecond pulses at the focus of a phase-modulated planar diffractive lens (PDL) through optical-path-induced spatial-to-temporal conversion. Each pulse serves as an information bit, encoding binary data via on-axis focal intensity states corresponding to '0' and '1', achieved by switching between topological and constant phase modulations. High experimental orthogonality between arbitrary bits enables nearly error-free transmission of 15X15-pixel grayscale (8-bit coding) and colour (9-bit coding) images at a record-high single-channel rate of approximately 3 terabits per second (Tbit/s). Free from electronic and coordination bottlenecks, this all-optical transmitter establishes a scalable high-speed single-channel pathway toward ultrahigh-capacity optical communication.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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