High speed free-space optical communication using standard fiber communication component without optical amplification
Abstract
Free-space optical communication (FSO) can achieve fast, secure and license-free communication without need for physical cables, making it a cost-effective, energy-efficient and flexible solution when the fiber connection is unavailable. To establish FSO connection on-demand, it is essential to build portable FSO devices with compact structure and light weight. Here, we develop a miniaturized FSO system and realize 9.16 Gbps FSO between two nodes that is 1 km apart, using a commercial single-mode-fiber-coupled optical transceiver module without optical amplification. Using our 4-stage acquisition, pointing and tracking (APT) systems, the tracking error is within 3 {\mu}rad and results an average link loss of 13.7 dB, which is the key for this high-bandwidth FSO demonstration without optical amplification. Our FSO link has been tested up to 4 km, with link loss of 18 dB that is limited by the foggy weather during the test. Longer FSO distances can be expected with better weather condition and optical amplification. With single FSO device weight of only 9.5 kg, this result arouses massive applications of field-deployable high-speed wireless communication.
Cite
@article{arxiv.2302.14751,
title = {High speed free-space optical communication using standard fiber communication component without optical amplification},
author = {Yao Zhang and Hua-Ying Liu and Xiaoyi Liu and Peng Xu and Xiang Dong and Pengfei Fan and Xiaohui Tian and Hua Yu and Dong Pan and Zhijun Yin and Guilu Long and Shi-Ning Zhu and Zhenda Xie},
journal= {arXiv preprint arXiv:2302.14751},
year = {2023}
}
Comments
7 pages, 5 figures