Photarix

Photarix develops semiconductor light emitter devices intended to support quantum-secure communication over existing fibre-optic networks. The company's core technology is a chip-scale light source designed to produce single-photon emission at telecom wavelengths, which is a building block used in quantum key distribution and related secure communication architectures. The devices are engineered using semiconductor fabrication methods, with the aim of enabling manufacturability at scale and integration into secure communication systems as an OEM component. Photarix positions the technology to operate at or near room temperature, which is intended to reduce deployment complexity compared with cryogenic single-photon source alternatives. The company's technology originates from research conducted at Lancaster University and has received support from UK innovation and academic programmes, including ICURe, North West CyberCom, CyberASAP, and Innovate UK Growth Catalyst. Photarix has been featured at industry events such as the DSIT Pavilion at International Cyber Expo 2025 and Black Hat Europe 2025. Photarix targets high-assurance sectors including government, telecom operators, and financial systems, focusing on organizations exploring practical deployment of quantum-secure communication infrastructure. The company is currently in a pre-commercial development stage, working toward pilot-ready hardware and engaging with potential partners and investors to support further development and scale-up.