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

In many laser systems, frequency combs whose output is frequency-modulated (FM) can
form, producing light whose frequency sweeps linearly. While this intriguing result has been …

Frequency-modulated (FM) frequency combs constitute an exciting alternative to generate
equidistant spectra. The full set of Maxwell-Bloch equations is reduced to a single master …

Since the first demonstration of the quantum cascade laser (QCL) frequency comb in 2012,
there have been open questions concerning the reproducibility of comb states, and, critically …

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

Multiheterodyne techniques using frequency combs—radiation sources whose lines are
perfectly evenly-spaced—have revolutionized science. By beating sources with the many …

SWIFT spectroscopy (Shifted Wave Interference Fourier Transform Spectroscopy) is a
coherent beatnote technique that can be used to measure the temporal profiles of periodic …

Frequency-modulated (FM) combs with a linearly-chirped frequency and nearly constant
intensity occur naturally in certain laser systems; they can be most succinctly described by a …

Optical frequency combs are perfectly periodic waveforms of light, whose optical spectrum
consists of a large number of equidistant modes. The mode spacing lies in the radio …

We consider here a time domain model representing the dynamics of quantum cascade
lasers (QCLs) generating frequency combs (FCs) in both THz and long wave infrared (LWIR …