A simple beam expanded for indoor optical wireless communication with short transmission distance
A simple beam expanded for indoor optical wireless communication with short transmission distance
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DOI：
10.1016/j.optcom.2019.06.045
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发表时间：
2019-11
影响因子：
2.4
通讯作者：
Yi-Lin Yu;S. Liaw;H. Kishikawa;N. Goto
中科院分区：
文献类型：
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作者：
Yi-Lin Yu;S. Liaw;H. Kishikawa;N. Goto
提出了一种以激光为光源的光无线通信方式，并进行了实验验证。我们在商用多模光纤（MMF）的端面采用圆弧曲率设计作为发射头来扩大光束直径。并对不同发射头的光场分布特性进行了测量和讨论。通过光学放大来补偿光束在自由空间中的发散损失。在从天花板到桌面2米的距离上测量的误码率（BER）和发射功率分别为400mb /s和10dbm。提出的激光扩展方法可广泛应用于传输距离较短的光通信系统中。
An optical wireless communication with laser light source is proposed and experimentally evaluated. We have used an arc curvature design at end-face of a piece of commercial multimode fiber (MMF) which acting as an emitting head to expand the beam diameter. The behavior of light field distributions with different emitted head were also measured and discussed. Optical amplification was carried out to compensate for the beam divergence loss in free space. The Bit error rate (BER) and launched power, measured in the distance of 2 m from ceiling to desk, are 400 Mb/s data rate and 10 dBm, respectively. The proposed method for laser expanded could be widely used in optical wireless communication system for short transmission distance.