Integrated electro-optical modulator and photodetector for the mid-infrared spectral range
Proceedings article published in 2023 by
Thi Hao Nhi Nguyen,
Natnicha Koompai,
Victor Turpaud,
Jonathan Peltier,
Jacopo Frigerio,
Stefano Calcaterra,
Andrea Ballabio,
Jean-Rene Coudevylle 
,
Cedric Villebasse,
David Bouville,
Carlos Alonso-Ramos,
Laurent Vivien,
Giovanni Isella,
Delphine Marris-Morini
,
Cedric Villebasse,
David Bouville,
Carlos Alonso-Ramos,
Laurent Vivien,
Giovanni Isella,
Delphine Marris-Morini
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Abstract
We report high speed integrated electro-optic modulator and integrated photodetector operating in a wide spectral range from 5 to 8 µm wavelength. Modulation is reported up to 1 GHz, while the photodetector responsivity reaches up to 0.1 mA/W. The development of a complete photonic platform including modulator and photodetector paves the way for on chip synchronous detection for multi-molecule on-chip spectroscopic systems.