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arXiv · 1704.03769

Toolbox for the design of $LiNbO_3$-based passive and active integrated quantum circuits

P. R. Sharapova·K. H. Luo·H. Herrmann·M. Reichelt·T. Meier·C. Silberhorn
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Abstract

We present and discuss perspectives of current developments on advanced quantum optical circuits monolithically integrated in the lithium niobate platform. A set of basic components comprising photon pair sources based on parametric down conversion (PDC), passive routing elements and active electro-optically controllable switches and polarisation converters are building blocks of a toolbox which is the basis for a broad range of diverse quantum circuits. We review the state-of-the-art of these components and provide models that properly describe their performance in quantum circuits. As an example for applications of these models we discuss design issues for a circuit providing on-chip two-photon interference. The circuit comprises a PDC section for photon pair generation followed by an actively controllable modified Mach-Zehnder structure for observing Hong-Ou-Mandel (HOM) interference. The performance of such a chip is simulated theoretically by taking even imperfections of the properties of the individual components into account.

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P. R. Sharapova, K. H. Luo, H. Herrmann, M. Reichelt, T. Meier, C. Silberhorn. 2018-02-06. Toolbox for the design of $LiNbO_3$-based passive and active integrated quantum circuits. https://doi.org/10.1088/1367-2630%2Faa9033

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