Miniaturized frequency combs (FCs) can be self-generated at terahertz (THz) frequencies
through four-wave mixing in the cavity of a quantum cascade laser (QCL). To date, however …

Broadband, quantum-engineered, quantum cascade lasers (QCLs) are the most powerful
chip-scale sources of optical frequency combs (FCs) across the mid-infrared and the …

Optical frequency combs (OFCs), which establish a rigid phase-coherent link between the
microwave and optical domains of the electromagnetic spectrum, are emerging as key high …

Frequency‐modulated (FM) combs feature flat intensity spectra with a linear frequency chirp,
useful for metrology and sensing applications. Generating FM combs in semiconductor …

Compensating for group velocity dispersion is an important challenge to achieve stable
midinfrared quantum cascade laser (QCL) frequency combs with large spectral coverage …

Quantum cascade lasers (QCLs) have emerged as promising candidates for generating chip-
scale frequency combs in mid-infrared and terahertz wavelengths. In this work, we …

Full phase control of terahertz (THz)‐emitting quantum cascade laser (QCL) combs has
recently been demonstrated, opening new perspectives for even the most demanding …

A terahertz (THz) frequency comb capable of high-resolution measurement will significantly
advance THz technology application in spectroscopy, metrology and sensing. The recently …

We report a homogeneous quantum cascade laser (QCL) emitting at terahertz (THz)
frequencies, with a total spectral emission of about 0.6 THz, centered around 3.3 THz, a …

This study investigates the interaction between frequency combs and optical feedback
effects in Quantum Cascade Lasers (QCLs). The theoretical analysis reveals new …