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首页> 外文期刊>IEEE Photonics Technology Letters >5Gb/s Eye-Safe LED-Based SI-POF Transmission With Equalization of Transmitter Nonlinearities
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5Gb/s Eye-Safe LED-Based SI-POF Transmission With Equalization of Transmitter Nonlinearities

机译：基于5Gb / s，人眼安全，基于LED的SI-POF传输，具有发射机非线性均衡功能

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摘要

Laboratory experiments on optical short range transmission with light-emiting diodes (LEDs), different lengths of step-index polymer optical fiber (SI-POF), and p-i-n-diode-based reception are performed. We compare multilevel pulse amplitude modulation with different spectral efficiencies with a particular focus on the impact of LED-based nonlinear signal impairments. A resonant cavity LED is used which emits a fiber-coupled power of −0.8 dBm at 650 nm. The impact of LED nonlinearities on the system power budget is evaluated, showing that compensation of these nonlinear signal distortions may noticeably increase the system power budget, even for 4-PAM. Applying a reduced-length Volterra-series-based post equalization, we report successful transmission of 5 Gb/s over 20 m of SI-POF, 2.25 Gb/s over 50 m, 1.1 Gb/s over 80 m, and 620 Mb/s over 100 m. To the best of our knowledge, the data rates obtained here set new record values using such an LED and SI-POFs, and we further show that gigabit per second transmission is also possible beyond 50m of SI-POF. Moreover, it generally demonstrates that competitive data rates using LEDs and p-i-n diode reception are possible with a well-adapted digital signal processing scheme. The results obtained here may also serve as a valuable information on how to maximize the bitrate of LED-based visible light communication (VLC) systems.
机译：进行了使用发光二极管（LED）进行光学短程传输，不同长度的阶跃折射率聚合物光纤（SI-POF）以及基于p-i-n二极管的接收的实验室实验。我们比较了具有不同频谱效率的多级脉冲幅度调制，特别关注基于LED的非线性信号损伤的影响。使用谐振腔LED，它在650 nm处发射-0.8 dBm的光纤耦合功率。评估了LED非线性对系统功率预算的影响，表明对这些非线性信号失真的补偿可能会显着增加系统功率预算，即使对于4-PAM。应用基于Volterra系列的减小长度的后均衡，我们报告成功传输了20 m的SI-POF 5 Gb / s，2.25 Gb / s 50 m，1.1 Gb / s 80 m和620 Mb /超过100 m。据我们所知，此处获得的数据速率使用此类LED和SI-POF设置了新的记录值，并且我们进一步表明，超过50m的SI-POF，每秒千兆传输也是可能的。而且，它通常证明，采用一个适应性强的数字信号处理方案，可以使用LED和p-i-n二极管接收获得具有竞争力的数据速率。此处获得的结果还可作为有关如何最大程度地提高基于LED的可见光通信（VLC）系统的比特率的有价值的信息。

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