Recent research has shown that free-running quantum cascade lasers are capable of
producing frequency combs in midinfrared and THz regions of the spectrum. Unlike familiar …

Frequency comb formation in quantum cascade lasers is studied theoretically using a
Maxwell-Bloch formalism based on a modal decomposition, where dispersion is considered …

An analytical expression for the maximum potential bandwidth of the frequency modulated
comb naturally occurring in free running quantum cascade lasers (QCLs) has been derived …

Self-starting harmonic frequency combs in quantum cascade lasers exhibit skipping of
several tens of longitudinal modes of the cavity, producing widely spaced frequency combs …

Free-running quantum cascade lasers (QCLs) show a natural tendency to operate in the
multimode regime as a result of both spatial and spectral hole burning. While multimode …

One salient characteristic of Quantum Cascade Laser (QCL) is its very short τ∼ 1 ps gain
recovery time that so far thwarted the attempts to achieve self-mode locking of the device …

Over the past decade, the demonstration of frequency combs has been reported in a wide
range of quantum cascade lasers. These combs have huge potential in applications …

Harmonic frequency combs, in which the lasing modes are separated by a period of tens of
free spectral ranges from each other, have been recently discovered in quantum cascade …

In quantum cascade laser frequency combs, the intensity distribution of the optical spectrum
can be split into two well-separated lobes of longitudinal modes that, even when far apart …

We dissect the enabling capabilities of the tunable period-one (P1) limit cycles of optically
injected quantum cascade laser (QCL) oscillators for the generation of optical frequency …