https://doi.org/10.1051/epjconf/202328707006
Mid-Infrared Frequency Combs based on Single Section Interband Cascade Lasers
1 Laboratoire de Physique de l’École Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université de Paris, 75005 Paris, France
2 IES, Univ. Montpellier, CNRS, F-34000 Montpellier, France
3 C2N, CNRS-Univ. Paris-Sud, Univ. Paris-Saclay, 10 Avenue Thomas Gobert, F-91120 Palaiseau, France
* Corresponding author: pavel.abajyan@phys.ens.fr
Published online: 18 October 2023
In this work we show Frequency Comb (FC) and short pulsed operation of mid-infrared Interband Cascade Lasers (ICLs) in a single long section. This is through the use of an adapted ultrafast Quantum Well Infrared Photodetectors (QWIPs), and correlating the microwave beatnotes with high resolution spectra of the ICL. In particular, we will show active mode-locking (ML) of single -section ICL that does not require RF optimisation of the ICL device and highlight its temporal characteristics using Shifted Wave Infrared Fourier Transform Spectroscopy (SWIFTS) analysis to reconstruct the intensity in the time domain.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
