Amiune, NicolasNicolasAmiuneZawilski, KevinKevinZawilskiSchunemann, PeterPeterSchunemannKordts, ArneArneKordtsHolzwarth, RonaldRonaldHolzwarthBuse, KarstenKarstenBuseBreunig, IngoIngoBreunig2023-12-072023-12-072023https://publica.fraunhofer.de/handle/publica/45767910.1109/CLEO/EUROPE-EQEC57999.2023.10231917Over the past decade, there has been a lot of progress in the development of compact single-frequency light sources and frequency combs based on microresonators and nonlinear optics. However, the mid-infrared (MIR) wavelength range still remains challenging to access with these devices while keeping a small footprint [1]. Some approaches rely on bulk MIR laser sources to pump microcombs, while others rely on converting near-infrared frequency comb sources to the MIR. In a different manner, quantum cascade lasers are a promising candidate as compact sources in the MIR but are limited to specific wavelengths and require high electrical powers.enOptical frequency conversionLaser tuningQuantum cascade lasersNonlinear opticsconference paper