communication without physical cables, providing a cost-effective, energy-efficient, and
flexible solution when fiber connection is unavailable. To achieve FSO on demand, portable
FSO devices are essential for flexible and fast deployment, where the key is achieving
compact structure and plug-and-play operation. Here, we develop a miniaturized FSO
system and realize 9.16 Gbps FSO in a 1 km link, using commercial single-mode-fiber …