The mid-infrared (mid-IR) is a wavelength range with a variety of technologically vital
applications in molecular sensing, security and defense, energy conservation, and …

Due to their intuitiveness, flexibility, and relative numerical efficiency, the macroscopic
Maxwell–Bloch (MB) equations are a widely used semiclassical and semi …

Pulsed lasers operating in the mid-infrared (3–20 μm) are important for a wide range of
applications in sensing, spectroscopy, imaging and communications. Despite recent …

The quantum cascade laser has evolved to be a compact, powerful source of coherent mid-
infrared light; however, its fast gain dynamics strongly restricts the formation of ultrashort …

Wave instability—the process that gives rise to turbulence in hydrodynamics—represents
the mechanism by which a small disturbance in a wave grows in amplitude owing to …

The effect of spatial hole burning on mode proliferation has been shown both theoretically
and experimentally to be important for frequency comb operation in quantum cascade lasers …

Recently, the field of optical frequency combs experienced a major development of new
sources. They are generally much smaller in size (on the scale of millimetres) and can …

Dispersion compensation is vital for the generation of ultrashort and single cycle pulses from
modelocked lasers across the electromagnetic spectrum. It is typically based on addition of …

Quantum cascade lasers (QCL) have revolutionized the generation of mid-infrared light. Yet,
the ultrafast carrier transport in mid-infrared QCLs has so far constituted a seemingly …

The optoelectronic oscillator (OEO) has been widely investigated to generate ultra-pure
single-frequency microwave signals. In this study, we propose and experimentally …