Kuboki Hayao, Matsuura Motoharu
Opt Lett. 2018 Mar 1;43(5):1067-1070. doi: 10.1364/OL.43.001067.
We demonstrate radio-over-fiber (RoF) transmission with a 10-W feed power-over-fiber (PWoF) using a conventional multimode fiber (MMF). In this scheme, the modal dispersion and feed light crosstalk in the MMF are effectively mitigated by the combination of center-launching (CL) and offset-launching (OL) techniques. The CL is used for propagating the feed light into lower-order modes in the MMF, while the OL is used not only for propagating the optical data signals into higher-order modes in the MMF, but also for mitigating the modal dispersion. We successfully achieved significant improvement in the RoF transmission performance with the 10-W feed PWoF and extended the link length up to 4 km, owing to the two techniques.
我们展示了使用传统多模光纤（MMF）进行的10瓦光纤馈电功率（PWoF）的光纤无线电（RoF）传输。在该方案中，通过中心发射（CL）和偏置发射（OL）技术的组合，有效减轻了MMF中的模式色散和馈电光串扰。CL用于将馈电光传播到MMF中的低阶模式，而OL不仅用于将光数据信号传播到MMF中的高阶模式，还用于减轻模式色散。由于这两种技术，我们成功地实现了10瓦馈电PWoF的RoF传输性能的显著改善，并将链路长度扩展到了4公里。
