Astrolight is expanding the capabilities of optical communications through a portfolio of laser communication terminals designed for satellites, ground infrastructure and maritime platforms. Headquartered in Vilnius, Lithuania, the company develops free-space optical (FSO) communication technologies that enable secure, high-speed data transmission for commercial, government and defense applications. The product portfolio includes the ATLAS-X-MINI, ATLAS-2 and POLARIS terminals, providing scalable optical communication solutions for space-to-ground, space-to-space and maritime communication links. Astrolight’s optical communication systems are designed to address these evolving requirements while supporting the next generation of satellite networking and high-capacity data transport.
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Astrolight develops optical communication terminals that use highly focused laser beams to transmit data through free space, enabling significantly higher bandwidth than many conventional RF systems while reducing spectrum congestion. The laser communication technologies support both space-to-ground and space-to-space communications, allowing satellite operators to downlink large datasets rapidly while enabling future interconnected orbital networks. The company’s product portfolio is designed to serve Earth observation missions, scientific satellites, commercial constellations, technology demonstrations, defense programs and other applications requiring reliable high-speed communications. Optical communications provide an effective solution by enabling high-speed transfer of payload data while reducing reliance on congested radio frequency spectrum. Astrolight’s terminals are engineered to support large-volume payload downlinks, enabling operators to transmit mission data more efficiently while improving overall communication performance. The systems also support inter-satellite communications, allowing spacecraft to exchange information directly in orbit and enabling more distributed satellite network architectures.
Among Astrolight’s flagship products is the ATLAS-X-MINI, a compact optical communication terminal designed for both space-to-ground and space-to-space communications. The terminal builds upon the company’s ATLAS technology already deployed in orbit while introducing a gimbal-equipped architecture that enables flexible optical pointing. The gimbal system allows the laser communication payload to maintain accurate alignment with ground stations or neighboring satellites while accommodating spacecraft attitude changes. This expanded pointing capability improves communication flexibility and supports a broader range of operational scenarios. The integrated gimbal mechanism allows the terminal to direct the optical beam across a wide field of regard, enabling communication opportunities that may not be achievable using fixed optical systems. This capability enhances operational flexibility for satellites operating in dynamic orbital environments while supporting communication with multiple ground stations and spacecraft. Accurate beam steering is particularly important for laser communications, where precise alignment is required to maintain reliable high-speed links across long distances. ATLAS-X-MINI supports data transmission rates of up to 2.5 Gbps for links between low Earth orbit (LEO) satellites and ground stations. The terminal also supports high-speed inter-satellite communications, allowing spacecraft to exchange information directly in orbit. These communication capabilities enable rapid transmission of Earth observation imagery, scientific datasets and mission telemetry while supporting future distributed satellite constellations designed around optical networking. High-bandwidth communications help reduce downlink bottlenecks and improve the efficiency of data-intensive space missions.
Astrolight has further expanded the optical communications portfolio with the ATLAS-2, the company’s second-generation laser communication terminal. ATLAS-2 is engineered to support spacecraft where payload resources are limited while maintaining high-performance optical communications. The terminal is compatible with the Space Development Agency (SDA) optical communication architecture, enabling interoperability with evolving space networking initiatives. The compact design allows integration across a wide variety of satellite platforms while minimizing spacecraft resource requirements. ATLAS-2 is specifically optimized for missions requiring transmission of large volumes of payload data together with low-data-rate return links. This configuration is particularly well suited for Earth observation satellites, where imaging instruments generate substantial datasets that must be transmitted efficiently to ground infrastructure. The terminal enables reliable relay and distribution of remote sensing data while supporting command, telemetry and operational communications through lower-bandwidth return channels. This balanced communication architecture improves mission efficiency while supporting diverse operational requirements. The terminal can automatically perform calibration procedures while operating in orbit, generating actionable performance data that supports improved communication reliability. Self-calibration enables the system to maintain accurate optical alignment despite changing operational conditions, reducing the need for manual adjustments and supporting long-term communication stability. This capability contributes to more reliable optical links throughout the mission lifetime. ATLAS-2 is optimized for operation alongside Astrolight’s OGS-2.5 Optical Ground Station. The combined terminal and ground infrastructure provide an integrated optical communication solution that supports efficient transmission of high-volume satellite data. By designing both spaceborne terminals and complementary ground systems, Astrolight enables end-to-end optical communication architectures capable of supporting future high-capacity satellite networks. This integrated approach simplifies interoperability while maximizing communication performance across the complete transmission chain.
In addition to satellite communications, Astrolight has expanded the optical technology portfolio into maritime applications through POLARIS. POLARIS is a compact and gimballed free-space optical (FSO) communication system designed for both large naval vessels and unmanned surface vehicles (USVs). The platform enables high-speed optical communications between moving maritime assets while providing the same laser communication principles used throughout the company’s space technologies. The gimballed architecture allows continuous beam tracking despite vessel movement and changing operating conditions. POLARIS provides an optical communication solution for these applications by enabling focused laser links that support rapid data transmission between maritime platforms. The system’s compact design allows deployment across a range of vessel sizes while maintaining the pointing accuracy necessary for reliable free-space optical communications. By extending optical communications beyond space systems, Astrolight broadens the application of the laser communication technologies across multiple operational domains. Astrolight emphasizes compact system design, low SWaP architecture, scalable integration and compatibility with evolving optical communication networks. The terminals support missions ranging from Earth observation and inter-satellite networking to maritime communications, providing flexible deployment options for organizations requiring high-bandwidth connectivity. The company’s continued development of optical communication technologies reflects the increasing importance of laser-based data transmission as satellite constellations and autonomous systems continue to expand. By advancing free-space optical communication technologies, Astrolight continues to contribute to the development of next-generation connectivity for space and maritime operations.
About Astrolight
Astrolight is a space communications technology company headquartered in Vilnius, Lithuania, specializing in laser-based optical communication systems for space and airborne applications. The company develops end-to-end optical communication solutions, including space terminals, ground stations and network management software, to enable high-speed, secure and low-latency data transfer between satellites, aircraft and ground infrastructure. The product portfolio supports satellite-to-ground, air-to-ground and inter-satellite communication links, addressing the growing demand for high-capacity data transmission in commercial, government and defense missions. By integrating optical hardware with communication software and network technologies, Astrolight delivers scalable laser communication solutions that support next-generation space connectivity and data transport.
