Reconfigurable beam system for non-line-of-sight free-space optical communication

Zizheng Cao; Xuebing Zhang; Gerwin Osnabrugge; Juhao Li; Ivo M. Vellekoop; Antonius M.J. Koonen

doi:10.1038/s41377-019-0177-3

Reconfigurable beam system for non-line-of-sight free-space optical communication

Zizheng Cao (Corresponding author), Xuebing Zhang, Gerwin Osnabrugge, Juhao Li, Ivo M. Vellekoop (Corresponding author), Antonius M.J. Koonen (Corresponding author)

Research output: Contribution to journal › Article › Academic › peer-review

8 Citations (Scopus)

51 Downloads (Pure)

Abstract

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° 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.

Original language	English
Article number	69
Number of pages	9
Journal	Light: Science and Applications
Volume	8
Issue number	1
DOIs	https://doi.org/10.1038/s41377-019-0177-3
Publication status	Published - 24 Jul 2019

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title = "Reconfigurable beam system for non-line-of-sight free-space optical communication",

abstract = "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° 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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Reconfigurable beam system for non-line-of-sight free-space optical communication. / Cao, Zizheng (Corresponding author); Zhang, Xuebing; Osnabrugge, Gerwin; Li, Juhao; Vellekoop, Ivo M. (Corresponding author); Koonen, Antonius M.J. (Corresponding author).

In: Light: Science and Applications, Vol. 8, No. 1, 69, 24.07.2019.

Research output: Contribution to journal › Article › Academic › peer-review

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