On-chip architecture for self-homodyned nonclassical light

Fischer, Kevin A. and Kelaita, Yousif A. and Sapra, Neil V. and Dory, Constantin and Lagoudakis, Konstantinos G. and Müller, Kai and Vučković, Jelena (2017) On-chip architecture for self-homodyned nonclassical light. Phys. Rev. Applied, 7 (4). 044002.

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    Abstract

    In the last decade, there has been remarkable progress on the practical integration of on-chip quantum photonic devices, yet quantum-state generators remain an outstanding challenge. Simultaneously, the quantum-dot photonic-crystal-resonator platform has demonstrated a versatility for creating nonclassical light with tunable quantum statistics thanks to a newly discovered self-homodyning interferometric effect that preferentially selects the quantum light over the classical light when using an optimally tuned Fano resonance. In this work, we propose a general structure for the cavity quantum electrodynamical generation of quantum states from a waveguide-integrated version of the quantum-dot photonic-crystal-resonator platform, which is specifically tailored for preferential quantum-state transmission. We support our results with rigorous finite-difference time-domain and quantum-optical simulations and show how our proposed device can serve as a robust generator of highly pure single- and even multiphoton states.