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arXiv · 1408.2275

On-chip generation, routing and detection of quantum light

Günther Reithmaier·Michael Kaniber·Fabian Flassig·Stefan Lichtmannecker·Kai Müller·Alexander Andrejew·Jelena Vuckovic·Rudolf Gross·Jonathan Finley
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Abstract

Semiconductor based photonic information technologies are rapidly being pushed to the quantum limit where non-classical states of light can be generated, manipulated and exploited in prototypical quantum optical circuits. Here, we report the on-chip generation of quantum light from individual, resonantly excited self-assembled InGaAs quantum dots, efficient routing over length scales $\geq 1$ mm via GaAs ridge waveguides and in-situ detection using evanescently coupled integrated NbN superconducting single photon detectors fabricated on the same chip. By temporally filtering the time-resolved luminescence signal stemming from single, resonantly excited quantum dots we use the prototypical quantum optical circuit to perform time-resolved excitation spectroscopy on single dots and demonstrate resonant fluorescence with a line-width of $10 \pm 1 \ \mu$eV; key elements needed for the use of single photons in prototypical quantum photonic circuits.

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Günther Reithmaier, Michael Kaniber, Fabian Flassig, Stefan Lichtmannecker, Kai Müller, Alexander Andrejew, Jelena Vuckovic, Rudolf Gross, Jonathan Finley. 2014-08-10. On-chip generation, routing and detection of quantum light. https://doi.org/10.1021/acs.nanolett.5b01444

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