Greek satellite establishes laser link to ground station
A satellite developed by a Greek university successfully connected with an optical ground station in Greece this week.
A mission named ERMIS-3 created a difficult optical connection using narrow laser beams while moving rapidly through orbit at high speeds. This process required precise pointing and continuous tracking between the satellite and the receiver on the ground.
Atmospheric conditions like clouds can block the signal or turbulence can reduce quality during these limited communication windows. Engineers must ensure the beam stays directed precisely towards the receiver while the satellite travels through space.
The satellite launched on March 30, 2026 alongside two other missions as part of a demonstration program for small satellites. Optical links could help transfer high-resolution imagery from Earth observation missions to the ground efficiently.
The European Space Agency provided technical expertise and environmental testing at its center in the Netherlands. This support helped validate optical communications on small satellites and marked a historic first optical connection with a low Earth orbit asset.
“This achievement demonstrates that Europe can deliver world-class innovation through close cooperation between industry, academia and institutions.”