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High performance Alexandrite crystals and coatings for high power space application

GALACTIC – High-Performance Alexandrite Crystals and Coatings for High Power Space Applications

Spaceborne Earth observation via LIDAR instruments requires new laser systems to gain deeper insight into large-scale atmospheric dynamics, improve the climate modeling and enhance the monitoring of the planet’s surface regarding the impact of climate change. Space-qualified Alexandrite crystals with optical interference coatings optimized for high laser-induced damage thresholds as laser-active media can overcome current limitations by providing wavelength tunability, short pulses, and high optical efficiency if pumped by state-of-the-art laser diodes.

Currently, Alexandrite crystals are commercially available in Europe, but companies from the USA and China dominate the market. To make Europe non-dependent, GALACTIC is setting up a solely European supply chain for space-qualified Alexandrite crystals. Read how GALACTIC aims to reach this goal and push the Technology Readiness Level (TRL) of European Alexandrite crystals from 4 to 6.