Journal
LIGHT-SCIENCE & APPLICATIONS
Volume 8, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/s41377-019-0177-3
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Funding
- European Research Council
- NWO Zwaartekracht program on Integrated Nanophotonics
- National Natural Science Foundation of China (NSFC) [61575186, 61635001]
- Open Fund from State Key Laboratory of Advanced Optical Communication Systems Networks, China
- NWO China Exchange Programme [530-5CDP06]
- ERC [678919]
- European Research Council (ERC) [678919] Funding Source: European Research Council (ERC)
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In this paper, we propose a reconfigurable beam-shaping system to permit energy-efficient non-line-of-sight (NLOS) free-space optical communication. Light is steered around obstacles blocking the direct communication pathway and reaches a receiver after reflecting off of a diffuse surface. A coherent array optical transmitter (CAO-Tx) is used to spatially shape the wavefront of the light incident on a diffuse surface. Wavefront shaping is used to enhance the amount of diffusely reflected light reaching the optical receiver. Synthetic NLOS experiments for a signal reflected over an angular range of 20 degrees are presented. A record-breaking 30-Gbit/s orthogonal frequency-division multiplexing signal is transmitted over a diffused optical wireless link with a > 17-dB gain.
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