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

• URL: http://arxiv.org/abs/2108.04450v1
• Date: Tue, 10 Aug 2021 05:04:25 GMT
• Title: Unidirectional output from a quantum-dot single-photon source hybrid integrated on silicon
• Authors: Ryota Katsumi, Yasutomo Ota, Takeyoshi Tajiri, Masahiro Kakuda, Satoshi Iwamoto, Hidefumi Akiyama and Yasuhiko Arakawa
• Abstract summary: We report a quantum-dot single-photon source (QD SPS) hybrid integrated on a silicon waveguide embedding a photonic crystal mirror. Results point out a promising approach toward scalable integration of SPSs on silicon quantum photonics platforms.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• 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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