Two-kilometer free-space demonstration validates quantum-secure communications and resilient PNT capabilities

Xairos Systems today announced a significant milestone for the Ares Quantum Optical Terminal, a robust system designed to deliver quantum-secure, high-data-rate communications and resilient position, navigation, and timing (PNT) in RF- and GPS-denied environments.

Xairos completed two-kilometer free-space range testing with Space Development Agency-compliant optical communications and established simultaneous quantum and optical links using a common Ares Quantum Optical Terminal. This free-space testing — distinct from fiber-based demonstrations — marks a critical step toward real-world operational deployment.

The fully integrated Ares Quantum Optical Terminal will combine 10 Gbps free-space optical communications, entangled photon distribution for timing and encryption key sharing, and a stable clock ensemble disciplined by Xairos’ exclusive Quantum Time Transfer (QTT) technology — all within a ruggedized compact package. QTT provides unprecedented security and resilience for PNT where GPS and RF signals are unavailable or jammed.

Ares Quantum Optical Terminal underpins a communications and PNT mesh network for aircraft, uncrewed aerial systems (UAS), ships, and other assets in contested environments, and serves as a foundation for a future space-based architecture spanning satellites, air vehicles, and ground nodes.

“This has been a strong team effort to integrate state-of-the-art capabilities into a package. The next step is to further develop this capability for our customers, including the Colorado Quantum Incubator to develop the Quantum Timing Center.”

— Mike Mabry, Chief Product Officer, Xairos

“Ares was developed specifically to meet the demand from our government customers to protect critical national infrastructure and the warfighter. For example, precision synchronization between distributed sensors and antennas is a key requirement for a future Golden Dome architecture that needs precise geolocation and data fusion for fire control.”

— Joe Campagna, Xairos COO

SOURCE: BUSINESS WIRE