Directional visible light communication signal enhancement using a varifocal micromirror with four degrees of freedom

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.


Editor(s):
Kane, Mh
Dietz, N
Ferguson, It
Published in:
Fifteenth International Conference On Solid State Lighting And Led-Based Illumination Systems, 9954, 99540C
Presented at:
15th International Conference on Solid State Lighting and LED-Based Illumination Systems, San Diego, CA, AUG 31, 2016
Year:
2016
Publisher:
Bellingham, Spie-Int Soc Optical Engineering
ISSN:
0277-786X
ISBN:
978-1-5106-0299-1; 978-1-5106-0300-4
Keywords:
Laboratories:




 Record created 2017-01-24, last modified 2018-01-28


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