We review the history and current status of ion exchanged glass waveguide technology. The
background of ion exchange in glass and key developments in the first years of research are …

After decades of fast-paced technical advances, optical/infrared (O/IR) interferometry has
seen a revolution in recent years:▪ The GRAVITY instrument at the Very Large Telescope …

Context. PIONIER stands for Precision Integrated-Optics Near-infrared Imaging ExpeRiment.
It combines four 1.8 m Auxilliary Telescopes or four 8m Unit Telescopes of the Very Large …

Here I review the current state of the field of optical stellar interferometry, concentrating on
ground-based work although a brief report of space interferometry missions is included. We …

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

We compare the first direct angular diameter measurements obtained on our closest stellar
neighbour, α Centauri, to recent model diameters constrained by asteroseismic …

We report the fabrication of single mode buried channel waveguides for the whole mid-
infrared transparency range of chalcogenide sulphide glasses by means of direct laser …

▪ Abstract The field of optical and infrared (IR) interferometry has seen rapid technical and
scientific progress over the past few years. A number of instruments capable of precise …

In the two decades since the first extra-solar planet was discovered, the detection and
characterization of extra-solar planets has become one of the key endeavours in all of …

Featured Application ion-exchange on glass has been extensively studied for the realization
of Planar Lightwave Circuits. Monolithically integrated on a single glass wafer, these devices …