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Unidirectional output from a quantum-dot single-photon source hybrid integrated on silicon. | LitMetric

AI Article Synopsis

  • * The silicon waveguide features a subwavelength grating, ensuring high efficiency even with potential alignment issues in the integration process.
  • * Our experimental setup successfully generated single photons from the quantum dot and demonstrated their unidirectional output, highlighting a step forward for integrating single-photon sources into silicon quantum photonics.

Article Abstract

We report a quantum-dot single-photon source (QD SPS) hybrid integrated on a silicon waveguide embedding a photonic crystal mirror, which reflects photons and enables efficient unidirectional output from the waveguide. The silicon waveguide is constituted of a subwavelength grating so as to maintain the high efficiency even under the presence of stacking misalignment accompanied by hybrid integration processes. Experimentally, we assembled the hybrid photonic structure by transfer printing and demonstrated single-photon generation from a QD and its unidirectional output from the waveguide. These results point out a promising approach toward scalable integration of SPSs on silicon quantum photonics platforms.

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Source
http://dx.doi.org/10.1364/OE.440218DOI Listing

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