28–31 Aug 2018
EPFL
Europe/Zurich timezone

【234】 Optical link through fog and clouds: clearing a path with laser filamentation

29 Aug 2018, 18:30
1h 30m
Salle polyvalente (EPFL)

Salle polyvalente

EPFL

Poster Applied Physics and Plasma Physics Poster Session

Speaker

Thomas Produit (Université de Genève)

Description

We present here a method that allows data transfer through fog and clouds, based on the opto-mechanical displacement of the water droplets instead of directly interacting with them. We experimentally demonstrated this method, which is based on the use of two lasers and the detection of a 1 GHz amplitude modulated sinusoidal signal. A high peak power pulsed laser generates the cloudless channel while a co- or counter-propagating low power laser carries information through the transmittive channel. Our experiment has been carried on a laboratory-scale fog length, with a typical water droplet density more than 100 times higher than that of real fog or cloud, hence an optical density comparable to a real fog.

Authors

Thomas Produit (Université de Genève) Dr Guillaume Schimmel (Université de Genève) Dr Denis Mongin (Université de Genève) Prof. Jérôme Kasparian (Université de Genève) Prof. Jean-Pierre Wolf (Université de Genève)

Presentation materials

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