The company’s optical frequency comb, a critical subsystem of its TEMPO.Space platform, was sent into orbit aboard Exotrail’s spacevan orbital transfer vehicle as part of the Kairos mission, which flew on a SpaceX launch.
The mission will test the performance of the optical frequency comb in the space environment, delivering vital data to support the development of ultra-precise, space-based timing systems.
QuantX Labs chief executive Professor Andre Luiten said the milestone represents a major breakthrough for both the company and the broader sector. “Successfully demonstrating this technology in orbit represents a major step toward deploying the world’s first optical atomic clock in space,” he said.
The initial mission is designed to validate the performance of the optical frequency comb in orbit for the first time while also testing key satellite interface systems, including communications, mechanical integrity, thermal management and environmental resilience. The data gathered will help de-risk the planned launch of the full TEMPO.Space optical atomic clock later this year.
Optical frequency combs, a Nobel Prize-winning technology, enable extremely precise measurement of time and frequency and are fundamental to the operation of optical atomic clocks.
Acting as a bridge between optical signals and electronic timing outputs, they allow end users to harness the unprecedented accuracy offered by next-generation timing systems.
The Kairos mission is expected to provide critical operational insights as QuantX Labs moves towards launching the complete TEMPO.Space system, which would be the first optical atomic clock deployed in orbit.
Head of Australian Space Agency, Enrico Palermo, welcomed the milestone, describing it as a significant boost to Australia’s sovereign space capability.
“This optical frequency comb mission will take QuantX Labs a step closer to realising the full suite of capabilities it has been developing, designed to enhance the positioning, navigation and timing services Australians depend on,” he said.
Luiten said the breakthrough would underpin the next generation of critical technologies. Improved timing precision is expected to strengthen navigation resilience, enable more advanced space missions and support emerging capabilities such as synchronised Earth observation networks and next-generation communications infrastructure.
The mission forms part of the Kairos program, backed by the Australian Space Agency’s Moon to Mars initiative and delivered in collaboration with international partners including Exotrail.
It has also been supported by a range of Australian organisations, including SmartSat CRC, the University of Adelaide, Defence Science and Technology Group and the Advanced Strategic Capabilities Accelerator, reflecting a coordinated national effort to advance sovereign space technologies.
Engineers at QuantX Labs are now completing final environmental testing of the full TEMPO.Space optical atomic clock ahead of its planned launch later this year. If successful, it will mark a global first, an operational optical atomic clock in orbit.
QuantX Labs specialises in precision timing and quantum sensing technologies, developing advanced optical clocks and frequency systems for applications across space, defence, telecommunications and navigation.