The recent rapid growth of satellite-constellation programmes for remote sensing and
communications, enabled by the availability of small-sized and low-cost satellites, has …

Satellite laser ranging (SLR) stations in the International Laser Ranging Service (ILRS)
global tracking network come in different shapes and sizes and were built by different …

Internet connectivity is limited and in some cases non-existent for a significant part of the
world's population. Project Loon aims to address this with a network of high-altitude balloons …

Free-space optical communications have held the promise of revolutionizing space
communications for a long time. The benefits of increasing the bitrate while reducing the …

Research and development of space optical communications is conducted in the National
Institute of Information and Communications Technology (NICT). The NICT developed the …

Downlink measurement campaigns from the optical downlink terminal OSIRISv1 onboard
the LEO satellite Flying Laptop were carried out with the French Observatoire de la Côte …

Multi-filament structures produced by vortical high-power femtosecond pulses propagating
through clouds and fog can simultaneously clear two channels with cylindrical and annular …

Secure communications are becoming increasingly relevant in the development of space
technology. Well-established cryptographic technology is already in place and is expected …

In order to address the high throughput requested for both downlink and uplink satellite to
ground laser links, adaptive optics (AO) has become a key technology. While maturing …

Small satellite technical capabilities continue to grow and launch opportunities are rapidly
expanding. Several commercial constellations of small satellites for Earth observation and …