The Integrated Quantum Photonics Laboratory at Griffith University, has the capability of fabricating waveguide in lithium niobate starting from the bare wafer down to the final device. This includes the fabrication of waveguide by proton exchange, periodic poling of the material, and the realization of electrodes for fast switching.

Our devices have low propagation losses (<0.1 dB/cm) at telecom wavelength as well a high coupling efficiency (≈90%) with optical fibre, making our waveguides an ideal interface for the development of quantum technologies.

Our facility includes a Raith150-TWO electron beam lithography system, electron beam evaporator for the deposition of thin film, and all general clean room processing equipment.

A/Prof. Mirko Lobino in the Integrated Quantum Photonics Laboratory at Griffith University.