Photonic lanterns are made by adiabatically merging several single-mode cores into one
multimode core. They provide low-loss interfaces between single-mode and multimode …

Since the discovery that tightly focused femtosecond laser pulses can induce a highly
localised and permanent refractive index modification in a large number of transparent …

We present an overview of a new integral field spectroscopic survey called MaNGA
(Map** Nearby Galaxies at Apache Point Observatory), one of three core programs in the …

We describe the design, manufacture, and performance of bare-fiber integral field units
(IFUs) for the SDSS-IV survey Map** Nearby Galaxies at Apache Point Observatory …

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

We used ultrafast laser inscription to fabricate three-dimensional integrated optical
transitions that efficiently couple light from a multimode waveguide to a two-dimensional …

Multimode optical fibers have been primarily (and almost solely) used as “light pipes” in
short distance telecommunications and in remote and astronomical spectroscopy. The …

Adaptive optics (AO) is critical in astronomy, optical communications and remote sensing to
deal with the rapid blurring caused by the Earth's turbulent atmosphere. But current AO …

A long-standing and profound problem in astronomy is the difficulty in obtaining deep near-
infrared observations due to the extreme brightness and variability of the night sky at these …

Coupling of light into multi-core fibers (MCF) for spatially resolved spectroscopy is of great
importance to astronomical instrumentation. To achieve high coupling efficiencies along with …