Abstract

Photonics is a promising approach to realising quantum information technologies, where entangled states of light are generated and manipulated to realise fundamentally new modes of computation [1], simulation [2] and communication [3], as well as enhanced measurements and sensing. Historically bulk optical elements on large optical tables have been the means by which to realise proof-of-principle demonstrators in quantum physics. More recently, integrated quantum photonics has enabled a step change in this technology by utilising low-index-contrast waveguide material systems, such as silica-on-silicon [4] and silicon-oxy-nitride [5]. Such technologies offer benefits in terms of low propagation losses, but their associated large bend radii and low component density ultimately limit the scalability and usefulness of this technology.

© 2015 IEEE