Naval Group, Astrolight to Test POLARIS Laser on Lithuanian Ships

Why It Matters

Secure, high‑capacity laser communications address growing electronic‑warfare threats, enhancing Baltic maritime defence and offering a scalable solution for NATO allies.

Key Takeaways

• Polaris laser terminal trialed on Naval Group vessels
• MoU signed during Lithuanian Maritime Defence Industry Days
• Laser communication offers jam‑resistant, high‑bandwidth links
• Testing aims to equip Lithuania's new offshore patrol vessel
• Successful NATO and Lithuanian Navy trials validate technology

Pulse Analysis

The maritime domain is increasingly contested by electronic warfare, prompting navies to seek alternatives to traditional radio frequency links. Laser‑based communication, often called free‑space optical (FSO), delivers narrow‑beam, line‑of‑sight data streams that are difficult to intercept or jam. In the Baltic Sea, where dense traffic and hostile actors converge, such resilience is especially valuable. Industry analysts note that FSO can complement existing satellite and HF/VHF systems, expanding bandwidth while reducing electromagnetic signature. As NATO emphasizes interoperable, secure communications, the technology aligns with broader alliance modernization goals.

Astrolight, a Lithuanian space‑tech firm, has partnered with French shipbuilder Naval Group to evaluate its POLARIS laser terminal on the latter’s upcoming multi‑purpose offshore patrol vessel for Lithuania. The MoU, signed at the Lithuanian Maritime Defence Industry Days, formalizes joint testing of ship‑to‑ship and ship‑to‑land links that have already succeeded in NATO’s REPMUS/Dynamic Messenger and Latvia’s DiBax exercises. POLARIS promises gigabit‑class throughput, low latency, and inherent resistance to jamming, addressing the Lithuanian Navy’s demand for secure, high‑capacity communications. If the trials confirm performance, the system could be integrated into the vessel’s combat, logistics, and humanitarian modules.

The successful demonstration could reshape procurement strategies across the region, offering a cost‑effective, export‑ready solution for smaller NATO members seeking to harden their maritime networks. Beyond Lithuania, the technology may attract interest from commercial shipping, offshore energy, and disaster‑response sectors that value undetectable, high‑speed links. Moreover, the collaboration underscores Europe’s drive to develop indigenous defense capabilities, reducing reliance on external vendors. As electronic threats evolve, laser communication is poised to become a standard layer in next‑generation naval platforms, reinforcing situational awareness and operational continuity in contested waters.