A new collaborative initiative is set to examine how cutting-edge laser technology could transform high-performance optical communications for the fast-growing space sector. Glasgow-based space engineering company Craft Prospect has joined forces with the Fraunhofer Centre for Applied Photonics (Fraunhofer CAP) and semiconductor laser innovator Vector Photonics to launch a pioneering research project known as PERSEUS.
Standing for PCSEL Environmental and Radiation Sensitivity: Evaluation for Use in Space, the PERSEUS project will investigate the viability of a promising new laser technology called Photonic-Crystal Surface-Emitting Lasers (PCSELs). Researchers will evaluate whether these advanced semiconductor lasers can reliably operate within the harsh environment of space, potentially offering a major leap forward in capability for both space-to-space and space-to-ground communication networks.
The project will rigorously evaluate the technology under real-world space deployment conditions, demonstrate its compatibility with representative spacecraft hardware, and chart out the necessary engineering steps required to transition the innovation toward a commercial, market-ready solution. Funding for the initiative is being provided through the Advanced Connectivity Technologies (ACT) programme, which is delivered by Innovate UK and funded by the Department for Culture, Media and Sport (DCMS). The ACT R&D Programme was originally announced by Minister Ian Murray during his keynote address at the Connected Britain conference on September 9, 2026.
Exploring a New Approach to Optical Communications
Modern space missions increasingly demand higher data throughput, longer communication ranges, and enhanced security. However, existing optical and traditional radio frequency (RF) communications systems often face distinct physical and architectural limitations when trying to meet these escalating demands. PCSEL technology holds the potential to overcome many of these barriers, supporting the global aerospace industry’s ongoing transition toward longer-range, higher-capacity, and more secure free-space optical links. These advanced links can facilitate high-speed data transmission between ground stations, low-Earth orbit satellites, constellations, and potentially deeper-space exploration assets.
By effectively bridging the gap between foundational semiconductor component development and complete space system architecture, the PERSEUS project will chart a direct course from disruptive laboratory technology to a differentiated, mission-proven on-orbit capability. This transition aims to address the needs of the commercial space market, where reliable, high-bandwidth data connectivity is becoming an essential operational utility.
From Device Testing to Spacecraft Integration
To prove the readiness of the technology, the PERSEUS programme will subject PCSELs to a comprehensive series of test campaigns traditionally required for space-qualified hardware. Alongside these rigorous environmental evaluations, the team will conduct long-range, high-bandwidth free-space demonstrations designed to showcase the early performance metrics of the lasers.
The individual PCSEL devices will undergo extensive characterisation and stress testing. This will include dedicated radiation exposure campaigns, vibration testing to simulate the intense mechanical forces of a rocket launch, and thermal-vacuum chamber cycles to replicate the extreme temperature fluctuations of the space environment. These tests are vital for building a thorough understanding of how the novel semiconductor structures fare during both launch and long-duration orbital operations.
Furthermore, the project will demonstrate early integration success by pairing the laser technology with other flight-representative hardware for end-to-end data transmission tests. Engineers will also develop specific mission concepts that harness the unique optical and spatial capabilities inherent to PCSELs. The empirical data and operational findings gathered throughout the programme will feed directly into a future communications system design concept, helping to define the engineering roadmap required to progress PCSEL technology toward a fully realized space communications solution.
Bringing Together Photonics and Space Engineering Expertise
The PERSEUS project relies on a multidisciplinary team combining world-class expertise in photonics, semiconductor manufacturing, and aerospace engineering. At Craft Prospect, Head of Engineering Kevin Quillien is serving as the overall Project Lead. He is supported by Chief Engineer Paul Yarr, alongside Systems Engineers Lauryn Atkinson and Kairavi Pandit.
At the Fraunhofer Centre for Applied Photonics, Dr. Gerald Bonner is leading the subcontract work, bringing deep knowledge in applied laser systems and optical instrumentation. Meanwhile, at Vector Photonics, Dr. Richard Taylor serves as the subcontract lead, working alongside Project Manager Dr. Graham Goldberg to guide the development and assessment of the proprietary laser devices.
The collaborative initiative also builds directly upon Craft Prospect’s expanding portfolio of quantum-optical communications capabilities. This includes the company’s ongoing work on the OPS-SAT VOLT mission, where engineers are actively developing and testing space-to-ground free-space quantum and optical communication technologies. These efforts form a core part of Craft Prospect’s broader corporate mission to deliver secure, intelligent, and resilient infrastructure known as Smart Secure Space.
Kevin Quillien, Project Lead and Head of Engineering at Craft Prospect, emphasized the strategic importance of the collaboration. "PERSEUS is an exciting opportunity to take a promising new photonics technology and understand the potential it has to offer the space industry," Quillien said. "By carrying out all the necessary early-stage work to test and characterise PCSELs for space, we will build a strong understanding of the potential that the technology offers in building the next generation of communication solutions. We’re looking forward to working with Fraunhofer CAP and Vector Photonics to explore where this roadmap will take us."
Founded in Glasgow, Craft Prospect is a specialized space engineering company focused on advancing its vision of Smart Secure Space through onboard intelligence, quantum technologies, and innovative satellite subsystems.
The Fraunhofer Centre for Applied Photonics is a not-for-profit research and technology organization offering industry partners professional development capabilities across the fields of photonics, advanced lasers, and quantum technologies.
Vector Photonics Limited, also based in Glasgow, is commercializing its revolutionary and proprietary PCSEL technology, transitioning the innovation from proven research and development environments into scalable, high-volume manufacturing facilities.
