The electro-optic, acousto-optic and nonlinear properties of lithium niobate make it a highly versatile material platform for integrated quantum photonic circuits. A prerequisite for quantum technology applications is the ability to efficiently integrate single photon sources, and to guide the generated photons through ad-hoc circuits. Here we report the integration of quantum dots in monolayer WSe2 into a Ti in-diffused lithium niobate directional coupler. We investigate the coupling of individual quantum dots to the waveguide mode, their spatial overlap, and the overall efficiency of the hybrid-integrated photonic circuit.
@article{arxiv.1810.08254,
title = {Atomically-thin quantum dots integrated with lithium niobate photonic chips},
author = {Daniel White and Artur Branny and Robert J. Chapman and Raphaël Picard and Mauro Brotons-Gisbert and Andreas Boes and Alberto Peruzzo and Cristian Bonato and Brian D. Gerardot},
journal= {arXiv preprint arXiv:1810.08254},
year = {2018}
}