Lithuanian space and defense tech company Astrolight has successfully demonstrated undetectable, unjammable, and high-bandwidth laser-based ship-to-ship communication with its POLARIS terminal during REPMUS’25, NATO’s largest unmanned maritime exercise recently.
During the REPMUS (Robotic Experimentation and Prototyping using Maritime Uncrewed Systems)/Dynamic Messenger mission, hosted by the Portuguese Navy, POLARIS laser terminals maintained a stable, jam-proof horizon-limited laser-based link between two vessels: NRP Dom Francisco de Almeida and NRP Dom Carlos I. During testing, the link wasn’t detected by a single sensor of other participating ships, drones, and land assets.
Astrolight’s terminals also transmitted gigabytes of data at latencies and speeds that allow for more than 10 concurrent, real-time HD video streams, even through rain and fog, during the day and night.
Jamming is a serious problem at sea because it can distort satellite navigation, confuse radar and ship-tracking displays, and interrupt radio and satellite communications. In such cases, crews switch to less secure backup methods like noisy radio or signal lamps that increase a ship’s electromagnetic signature and make it easier to detect.
The demonstration of Astrolight’s POLARIS in Portugal builds on prior tests with the Lithuanian Navy.
NATO’s REPMUS/Dynamic Messenger exercise combines REPMUS, the top event for maritime robotics and unmanned tech, and Dynamic Messenger, a program for testing innovative naval systems. They bring together NATO Allies, partners, academia, and industry experts, and provide a realistic setting to evaluate new maritime capabilities and promote their integration into NATO operations.
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This entry was posted on October 17, 2025 at 11:20 am and is filed under Commentary with tags Astrolight. You can follow any responses to this entry through the RSS 2.0 feed.
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NATO’s Biggest Naval Exercise Proves Undetectable Ship-to-Ship Laser Communication
Lithuanian space and defense tech company Astrolight has successfully demonstrated undetectable, unjammable, and high-bandwidth laser-based ship-to-ship communication with its POLARIS terminal during REPMUS’25, NATO’s largest unmanned maritime exercise recently.
During the REPMUS (Robotic Experimentation and Prototyping using Maritime Uncrewed Systems)/Dynamic Messenger mission, hosted by the Portuguese Navy, POLARIS laser terminals maintained a stable, jam-proof horizon-limited laser-based link between two vessels: NRP Dom Francisco de Almeida and NRP Dom Carlos I. During testing, the link wasn’t detected by a single sensor of other participating ships, drones, and land assets.
Astrolight’s terminals also transmitted gigabytes of data at latencies and speeds that allow for more than 10 concurrent, real-time HD video streams, even through rain and fog, during the day and night.
Jamming is a serious problem at sea because it can distort satellite navigation, confuse radar and ship-tracking displays, and interrupt radio and satellite communications. In such cases, crews switch to less secure backup methods like noisy radio or signal lamps that increase a ship’s electromagnetic signature and make it easier to detect.
The demonstration of Astrolight’s POLARIS in Portugal builds on prior tests with the Lithuanian Navy.
NATO’s REPMUS/Dynamic Messenger exercise combines REPMUS, the top event for maritime robotics and unmanned tech, and Dynamic Messenger, a program for testing innovative naval systems. They bring together NATO Allies, partners, academia, and industry experts, and provide a realistic setting to evaluate new maritime capabilities and promote their integration into NATO operations.
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This entry was posted on October 17, 2025 at 11:20 am and is filed under Commentary with tags Astrolight. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.