High bitrate Free-Space Optical communication at 9 µm wavelength using Unipolar Devices operating at room-temperature
Hamza Dely  1, *, @  , Thomas Bonazzi  1, *, @  , Olivier Spitz  2, @  , Etienne Rodriguez  1, @  , Konstantinos Pantzas  3, @  , Grégoire Beaudoin  3, @  , Isabelle Sagnes  3, @  , Lianhe Li  4, @  , A. Giles Davies  4, @  , Edmund H. Linfield  4, @  , Frédéric Grillot  2, @  , Angela Vasanelli  1, @  , Carlo Sirtori  1, @  
1 : Laboratoire de physique de lÉNS - ENS Paris
École normale supérieure - Paris, Université Paris sciences et lettres, Sorbonne Université, Centre National de la Recherche Scientifique : UMR8023, Université de Paris
24, rue Lhomond75005 Paris -  France
2 : Télécom Paris
Télécom ParisTech
19 Place Marguerite Perey 91120 Palaiseau -  France
3 : Centre de Nanosciences et Nanotechnologies
CNRS : UMR9001, Université Paris-Saclay
10 Boulevard Thomas Gobert, 91120 Palaiseau, France -  France
4 : School of Electronic and Electrical Engineering, University of Leeds
Woodhouse Lane, Leeds, LS2 9JT -  Royaume-Uni
* : Corresponding author

We present the results obtained with a complete 9µm free-space optical setup built with intersubband optoelectronic devices. It is composed of a quantum cascade laser and home-made quantum cascade detector and modulator using the quantum-confined Stark effect to take advantage of intersubband devices high-frequency capabilities, avoiding charge displacement. We report up to 8 Gbit/s which is, to the best of our knowledge, an improvement of 2 orders of magnitude of the state of the art at 9µm using external modulation.

Subject : : oral
Topics : MIR sources and devices
Topics : Integrated MIR photonics
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