ESA uses Altechna optics in record-setting deep-space laser link to NASA Psyche

Oct. 2, 2025
The Ground Laser Transmitter used Altechna’s 3-inch mirrors and windows to shape and stabilize the beam.

Summary points: 

  • ESA successfully sent a laser signal to NASA’s Psyche spacecraft over 186 million miles away.
  • The Ground Laser Transmitter used Altechna’s 3-inch mirrors and windows to shape and stabilize the beam.
  • Precision optics ensured signal quality despite high power use and atmospheric interference.

VILNIUS, Lithuania - The European Space Agency (ESA) has completed a deep-space optical communications campaign by sending a laser signal to the National Aeronautics and Space Administration's (NASA) Psyche spacecraft more than 186 million miles from Earth, using optical components provided by Altechna.

Altechna, a global custom optics manufacturer based in Vilnius, Lithuania, supplied 3-inch mirrors and windows for the Ground Laser Transmitter system, which shaped and stabilized the laser beam. The components maintained beam quality under heavy power use and atmospheric interference.

"Our role is to make optics that function in the toughest conditions, whether that’s inside a laser weapon, or in a beam path pointed deep into the solar system," said Antanas Laurutis, CEO of Altechna. "We can’t lose signal to scattering, distortion or damage. That’s where every nanometer of coating quality matters."

Related: ESA announces five companies selected for European Launch Challenge

ESA’s demonstration marks a step toward high-capacity space communications. Unlike traditional radio links, optical systems offer greater data throughput, lower latency, and stronger resistance to interference.

"As missions go farther to the Moon, Mars, and beyond, demand for reliable, high-volume data continues to grow," Laurutis said. "We are proud our optics helped make this campaign possible and see optical communication as a foundation for the next era of space exploration."

Altechna, backed by venture capital fund LitCapital, specializes in custom laser optics and optomechanical assemblies for high-powered laser production. With nearly 30 years of experience, the company delivers photonics solutions for global laser manufacturers.

Jamie Whitney
About the Author

Jamie Whitney

Jamie Whitney joined the staff of Military & Aerospace Electronics and Intelligent Aerospace. He brings seven years of print newspaper experience to the aerospace and defense electronics industry.

Whitney oversees editorial content for the Intelligent Aerospace Website, as well as produce news and features for Military & Aerospace Electronics, attend industry events, produce Webcasts, oversee print production of Military & Aerospace Electronics, and expand the Intelligent Aerospace and Military & Aerospace Electronics franchises with new and innovative content.

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