Multi-domain modeling of free-running harmonic frequency comb formation in terahertz quantum cascade lasers

J Popp, L Seitner, F Naunheimer… - IEEE Photonics …, 2024 - ieeexplore.ieee.org
Optical frequency comb (OFC) emission in quantum cascade lasers (QCLs) is highly
attractive for applications in metrology and sensing. Recently, coherent OFC mode-locking …