The progress on multi‐wavelength quantum cascade laser arrays in the mid‐infrared is
reviewed, which are a powerful, robust and versatile source for next‐generation …

The implementation of a sensitive and selective as well as industrial fit gas sensor prototype
based on wavelength modulation spectroscopy with second harmonic detection (2 f-WMS) …

In this paper, we present the design, the fabrication and the characterization of an Arrayed
Waveguide Grating (AWG) based on a SiGe graded index waveguide platform, operating at …

A 1 x 2 multimode interferometer beam splitter based on mid-infrared emitting
chalcogenides waveguides is designed. This device multiplexes mid-infrared light in two …

The favorable downscaling behavior of photoacoustic spectroscopy has provoked in recent
years a growing interest in the miniaturization of photoacoustic sensors. The individual …

In this report, the sampled grating distributed feedback laser architecture is modified with
digital concatenated gratings to partially compensate for the wavelength dependence of …

We present experimental investigations of the intensity noise properties of injection-locked
midinfrared emitting quantum cascade lasers. Following the theoretical approach by Simos …

The present work reports on the first application of a ring-cavity-surface-emitting quantum-
cascade laser (RCSE-QCL) for sensitive gas measurements. RCSE-QCLs are promising …

Mid-infrared spectroscopy is an extremely useful and versatile technique to identify the
chemical composition of gases, liquids, and solids via their unique absorption lines. The …

Mid-infrared (MIR) spectroscopy covers a powerful set of techniques applicable to the
selective identification and elucidation of solid, liquid and gaseous chemical compounds …