UV written waveguides for photonic quantum circuits

Smith, P.G.R., Kundys, D., Gates, J.C., Holmes, C., Snow, B.D. and Parker, R.M. (2009) UV written waveguides for photonic quantum circuits. Quantum Photonics Workshop, Bristol, UK, Bristol. 16 - 17 Sep 2009.

Abstract

Integrated optical circuits provide an important technology within optical telecommunications, and are also major subjects of research in optical chemical and biological sensors. Recently, however, their application in quantum information processing has attracted considerable attention within the research community, as they offer a robust and reliable route to realising experiments on a chip that would require whole optical benches of bulk optics. This talk will provide a background to technologies for creating optical circuitry, review their existing uses within optics, will look at the elements required to achieve meaningful quantum operations, and will highlight the recent uses of laser direct write to create optical waveguides. In particular, the UV direct write approach pioneered at COM in Denmark and at the ORC in Southampton will be shown to allow the creation of low loss, fibre compatible waveguides, enables the fabrication of cross-couplers and allows ready incorporation of Bragg gratings, thermo-optic elements and liquid crystal tunable elements. Results from the application of UV written waveguides to quantum circuits will be presented.

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Contributors

Author: P.G.R. Smith

Author: J.C. Gates

Author: C. Holmes

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