Photarix Single-Photon Light Emitters

Photarix develops semiconductor light emitter chips designed to support quantum-secure communication over existing fibre-optic networks. The devices emit single photons at telecom wavelengths, intended for use in secure key exchange systems such as quantum key distribution. The company positions its hardware as a component technology for OEM integration into secure communication systems, targeting high-assurance environments including government, telecom, and financial sectors. The devices are designed to operate at or near room temperature, which the company states reduces deployment complexity compared to cryogenic alternatives. Photarix is a spin-out from Lancaster University research and has received support from UK innovation programmes including ICURe, North West CyberCom, CyberASAP, and Innovate UK Growth Catalyst. The company is in a pilot/pre-commercial development stage and is engaging with partners across telecom, secure communications, government, and critical infrastructure, as well as investors. This page is the company homepage rather than a page for a specific shipped product; Photarix's technology is a hardware component (single-photon emitter chip) rather than a software security tool.