Free space optics data transmission with bitrate in excess of 10 Gbit s− 1 is demonstrated at
9 µm wavelength by using a unipolar quantum optoelectronic system at room temperature …

This article presents an overview of the current status and future prospects of integrated
nonlinear photonics in the long-wave infrared (LWIR) spectrum, spanning 6 to 14 μm. This …

Since about one and half centuries ago, at the dawn of modern communications, the radio
and the optics have been two separate electromagnetic spectrum regions to carry data …

Photonic technologies offer numerous functionalities that can be used to realize
astrophotonic instruments. The most spectacular example to date is the ESO Gravity …

The large mid-infrared (MIR) spectral region, ranging from 2.5 µm to 25 µm, has remained
under-exploited in the electromagnetic spectrum, primarily due to the absence of viable …

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

Free-space optical communication is a very promising alternative to fiber communication
systems, in terms of ease of deployment and costs. Midinfrared light has several features of …

A roadmap for future wireless communications is expected to exploit all transmission-
suitable spectrum bands, from the microwave to the optical frequencies, to support orders of …

Thanks to intrinsically short electronic relaxation on the ps time scale, III-V semiconductor
unipolar devices are ideal candidates for ultrahigh-speed operation at mid-infrared …

Improving the signal-to-noise ratio of infrared photodetectors is a primary goal especially for
those operating in the long wavelength range. Optical design in the sub-wavelength scale …