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 …

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

Within the field of spectral imaging, the vast majority of instruments used are scanning
devices. Recently, several snapshot spectral imaging systems have become commercially …

Optical communication is an integral part of the modern economy, having all but replaced
electronic communication systems. Future growth in bandwidth appears to be on the horizon …

Four-mode multiplexing and manipulation technologies are reviewed in the context of space-
division multiplexing (SDM) optical communication systems. These are multiplane light …

Single-mode fibres with low loss and a large transmission bandwidth are a key enabler for
long-haul high-speed optical communication and form the backbone of our information …

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

Increasing the information capacity per unit bandwidth has been a perennial goal of
scientists and engineers. Multiplexing of independent degrees of freedom, such as …

We demonstrate a 3x1 fiber-based photonic lantern spatial-multiplexer with mode-selectivity
greater than 6 dB and transmission loss of less than 0.3 dB. The total insertion loss of the …

We model and demonstrate a simple mode selective all-fiber coupler capable of exciting
specific higher order modes in two-and few-mode fibres with high efficiency and purity. The …