High-speed free-space transmission at room temperature with an RF-mounted quantum cascade laser emitting in the long-wave infrared domain

Olivier Spitz,Alice Guillaume-Manca,Ke Yang,Pierre Didier,Junqi Liu,Elie Awwad, Frederic Grillot

2022 IEEE Research and Applications of Photonics in Defense Conference (RAPID)（2022）

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Abstract

We report on a room-temperature transmission with a long-wave infrared quantum cascade laser emitting at 8.1 µm. With 4-level pulse amplitude modulation and digital signal processing, maximum data rate of 4.8 Gbps is achieved.

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Key words

quantum cascade laser,free-space communication,long-wave infrared photonics

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