General Atomics Electromagnetic Systems (GA-EMS) and Kepler Communications US have successfully conducted a significant test of two-way optical communications between an aircraft and a satellite in space, signaling a pivotal advancement in secure and high-data-rate connectivity. This test was carried out using GA-EMS’ Optical Communication Terminal (OCT), designed to facilitate enhanced communication capabilities.
During the demonstration, the OCT was installed on a 12-inch Laser Airborne Communication turret mounted on the aircraft. This setup established a connection with a Kepler satellite compatible with the US Space Development Agency’s Tranche 0, positioned in low Earth orbit. The test showcased the system’s ability to transmit substantial data volumes, ensuring a reliable communication link between airborne and space-based assets.
The process involved the OCT completing a series of operations, including pointing, acquisition, tracking, and locking onto the satellite. Following this setup, the system conducted an uplink operation, successfully transmitting data to the satellite. Additionally, it performed a downlink operation, receiving data back from the satellite, demonstrating the bi-directional capability of the communication system.
Robert Conrad, president of Kepler US, emphasized the fruitful collaboration between Kepler’s orbital optical capabilities and GA-EMS’ OCT, underscoring the potential benefits of integrating space and aviation technologies. Conrad also pointed out the significant role of commercial space operators in enhancing secure communication channels for both defense and commercial applications, noting that this initiative builds upon previous successful tests of two-way communications between space and ground systems.
The GA-EMS Optical Communication Terminal is engineered to transmit up to 5 gigabytes per second over distances reaching 5,000 kilometers (3,107 miles). Unlike traditional radio communication systems, the OCT employs a smaller lens, which not only reduces the weight of the device but also maintains a tightly concentrated signal, thereby minimizing signal dispersion over long distances. By utilizing higher frequency operations, the system can effectively transmit more data simultaneously, thereby enhancing overall communication capacity.
The OCT’s ability to send signals in a focused beam not only decreases potential interference from other communication sources but also enhances the security of the transmissions, making the signals more challenging to intercept or detect. This successful test represents a potential leap forward in the realm of aerospace communications, paving the way for future applications in both defense and commercial sectors.
