In the Centre's Quantum optics group, we investigate how to generate, manipulate, and transmit quantum states of light with high fidelity. Using specialist optical fibres fabricated within the Centre for Photonics, we develop high-performance sources of single photons, entangled photon pairs, and squeezed light. These quantum resources underpin applications in quantum computing, precision measurement, and secure communications.

Alkali vapours

We also develop quantum switches based on atomic vapours, enabling the active routing and manipulation of quantum information. By integrating alkali-metal vapours, such as rubidium, within hollow-core optical fibres, we create compact, fibre-compatible platforms for strong light–matter interaction. This supports the development of scalable quantum networks and enhanced functionality in photonic processors.

Complementing our fibre work, we develop plasmonic and nanophotonic platforms incorporating rubidium atomic dispensers. This technology enables the precise, controlled release of atomic vapours in vacuum-sealed environments, facilitating new regimes of light-matter coupling. These dispensers provide a robust framework for miniaturised quantum sensors and high-speed optical components that operate independently of conventional fibre architectures.