The dynamics of semiconductor lasers with fast gain is generally considered to suppress
amplitude modulation, resulting in a frequency‐modulated output. Since their first …

The mid-infrared spectral region opens up new possibilities for applications such as
molecular spectroscopy with high spatial and frequency resolution. For example, the mid …

Dissipative Kerr solitons are self-organized optical waves arising from the interplay between
the Kerr effect and dispersion. They can form in nonlinear microresonators by deliberately …

It was recently demonstrated that broadband quantum cascade lasers can operate as
frequency combs. As such, they operate under direct electrical pumping at both mid-infrared …

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 …

On-chip integration of optical comb sources is crucial in enabling their widespread use.
Integrated photonic devices that can be mass-manufactured in semiconductor processing …

To meet the high demand of data transmission capacity, optical communications systems
have been developed. In order to increase the channel numbers for larger communication …

Quantum cascade detectors (QCD) are photovoltaic mid-infrared detectors based on
intersubband transitions. Owing to the sub-picosecond carrier transport between subbands …

Frequency combs have become a prominent research area in optics. Of particular interest as
integrated comb technology are chip-scale sources, such as semiconductor lasers and …

In this work, control over the precise state emitted by quantum cascade laser frequency
combs through strong radio‐frequency current modulation close to their repetition frequency …