Directional visible light communication signal enhancement using a varifocal micromirror with four degrees of freedom
Morrison, Jessica; Rahaim, Michael; Miao, Yun; Imboden, Matthias; Little, Thomas D. C.; Koomson, Valencia; Bishop, David J.
2016

Abstract

We present the use of a micromirror to dynamically improve an optical wireless communiciations link. The signal-to-noise ratio (SNR) is improved by directing the output of a 675 nm laser diode modulated at 10 MHz toward a receiver and by varying the divergence of the output beam using a varifocal, tip-tilt-piston micromirror. The SNR has a dynamic range of 30 dB for a diffuse source, all by optimizing the overall shape and direction of the mirror.

Details

Title Directional visible light communication signal enhancement using a varifocal micromirror with four degrees of freedom
Author(s) Morrison, Jessica ; Rahaim, Michael ; Miao, Yun ; Imboden, Matthias ; Little, Thomas D. C. ; Koomson, Valencia ; Bishop, David J.
Published in Fifteenth International Conference On Solid State Lighting And Led-Based Illumination Systems
Pagination 11
Editor(s)
Series Proceedings of SPIE
Volume 9954
Pages 99540C
Conference 15th International Conference on Solid State Lighting and LED-Based Illumination Systems, San Diego, CA, AUG 31, 2016
Date 2016
Publisher Bellingham, Spie-Int Soc Optical Engineering
ISSN 0277-786X
ISBN 978-1-5106-0299-1
978-1-5106-0300-4
Keywords
DOI https://doi.org/10.1117/12.2237736
Other identifier(s) View record in Web of Science
Laboratories IMT
Record Appears in Scientific production and competences > STI - School of Engineering > STI Archives > IMT - Institute of Microengineering
Peer-reviewed publications
Conference Papers
Work produced at EPFL
Published
Record creation date 2017-01-24