Photonic lanterns (PLs) are tapered waveguides that gradually transition from a multimode
fiber geometry to a bundle of single-mode fibers (SMFs). They can efficiently couple …

We report the angular diameter measurements of seven classical Cepheids, X Sgr, η Aql, W
Sgr, ζ Gem, β Dor, Y Oph and Car that we have obtained with the VINCI instrument, installed …

We have observed Mira stars with the FLUOR beamcombiner on the IOTA interferometer in
narrow bands around m wavelength. We find systematically larger diameters in bands …

The coupling between a turbulence-distorted optical beam and a single-mode waveguide is
addressed. The coupling efficiency and the coupled phase are derived, both without …

We present first results of an experiment to combine data from Keck aperture masking and
the Infrared-Optical Telescope Array to image the circumstellar environments of evolved …

Long baseline stellar interferometry shares with other techniques the need for calibrator
stars in order to correct for instrumental and atmospheric effects. We present a catalogue of …

In the area of long-baseline nulling interferometry, high rejection ratios are needed to cancel
out the light of a bright central source and look for nearby faint structures or companions …

We present new total intensity and linear polarization VLBA observations of the and maser
transitions of SiO at 42.8 and 43.1 GHz in a number of Mira variable stars over a substantial …

ABSTRACT The Palomar Fiber Nuller (PFN) is a rotating-baseline nulling interferometer that
enables high-accuracy near-infrared (NIR) nulling observations with full azimuth coverage …

The fibered beam combiner FLUOR, which has provided high accuracy visibility
measurements on the IOTA interferometer, is being moved to the CHARA array which …