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NATO tests use of “undetectable, jam-proof” laser communication in maritime scenarios

17th December 2025 - 08:55 GMT | by Flavia Camargos Pereira in Kansas City, Missouri

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Astrolight Polaris was installed in the Portuguese Navy’s Dom Francisco de Almeida frigate. (Photo: Portuguese Navy)

As part of its effort to better prepare its capabilities for operations in contested and congested scenarios, NATO evaluated a Lithuanian ship-to-ship terminal designed to not be susceptible to enemy interference.

NATO member states recently conducted trials in naval environments with a laser-based communication capability. Supplied by the Lithuanian start-up Astrolight, the Polaris ship-to-ship terminal is an “invisible, undetectable, jam-proof” C3 data link, according to the manufacturer.

Selected for the second phase of the alliance’s Defence Innovation Accelerator for the North Atlantic (DIANA) for 2024/25, the system was tested in Portugal as part of a NATO effort to better prepare equipment for deployment in contested and congested scenarios.

Speaking to Shephard, Astrolight CEO Laurynas Mačiulis explained that Polaris provides a “less detectable, stealthier” way to communicate, enabling vessels to “securely

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Flavia Camargos Pereira

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Flavia Camargos Pereira


Flavia Camargos Pereira is a North America editor at Shephard Media. She joined the company …

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