Space is getting crowded. The airwaves are full. But by swapping out congested wires for clean beams of light, the next generation of orbital networks might just keep our data flowing without missing a beat.
Pilot Photonics, an Irish tech company, has won a €1 million contract from the European Space Agency (ESA).
As per the June 4 announcement, the funding will be used to upgrade their specialized microchip device called the Optical Frequency Generator Unit (OFGU) for use within next-generation satellite constellations.
OFGU provides highly stable signal generation to enhance both current radio frequency systems and next-generation, light-based satellite architectures.
The upgrade would make this device tough enough to survive the harsh environment of space.
The goal is to equip modern satellite constellations with wider frequency bands and reconfigurable payloads, all while reducing hardware size, weight, power, and cost (SWaP-C).
“This project will accelerate the OFGU’s readiness for space, culminating in space-environment validation after which early demonstrations in orbit can commence,” said Dr. Amol Delmade, OFGU Product Lead at Pilot Photonics.
Overcoming RF congestion
Today’s satellite systems rely on electronic frequency generation units (FGUs) to slice up and manage radio signals. It worked fine when space was empty and data was light.
It fails for data-heavy applications when millions of people want high-definition live streams simultaneously, particularly in the times when AR/VR are pushing this infrastructure to its limits.
At the same time, the growing number of satellites in orbit has severely crowded conventional radio bands.
Hence, the future of global connectivity faces a severe shortage of space. To fix it, space agencies are moving away from standard electronics entirely and turning to the physics of light.
The upcoming satellite networks will likely rely on compact optical hardware, which is essentially specialized glass technology that transmits data using light rather than crowded radio waves.
Pilot Photonics is overcoming the limitations of standard radio frequency electronics by shifting everything into the optical domain. These advanced chips process photons rather than electrons, routing light through integrated photonic circuits instead of electricity through copper.
The result is a highly integrated, compact module capable of delivering frequencies from 8GHz all the way up to 220GHz from a single source. It does this with minimal noise and extreme power efficiency.
Reducing physical burden
In the era of massive low-Earth-orbit satellite constellations, reducing Size, Weight, Power, and Cost (SWaP-C) is critical for economical mass production and launching.
Pilot Photonics’ highly compact integrated optical module directly addresses this need by lowering the physical burden on onboard systems. The technology directly improves both the financial and operational scalability of modern orbital networks by shrinking the hardware.
This device functions in two main setups to upgrade both current and future space infrastructure. In its first configuration, it serves as a highly stable signal source for standard satellite payloads, ground stations, and feeder-link transponders.
In its second configuration, it pipes optical signals directly through the spacecraft to boost the performance and flexibility of cutting-edge, light-based satellite designs.
The tech isn’t entirely new; it builds on years of groundwork funded by EU initiatives such as PICOMB and PhotonHub Europe, using specialized wafer designs fabricated in partnership with Germany’s Fraunhofer HHI. But the ESA contract marks a massive leap forward.
Once the hardware passes extreme space-environment validation, the team plans to launch early demonstrations directly into orbit.