典型文献
Scalable and highly efficient approach for an on-chip single-photon source
文献摘要：
Integrated photonic circuits with quantum dots provide a promising route for scalable quantum chips with highly efficient photonic sources. However, unpolarized emission photons in general sacrifice half efficiency when coupling to the waveguide fundamental mode by a cross polarization technique for suppressing the excitation laser, while suspended waveguide photonics sources without polarization filters have poor scalability due to their mechanical fragility. Here, we propose a strategy for overcoming the challenge by coupling an elliptical Bragg resonator with waveguides on a solid-state base, featuring near-unity polarization efficiency and enabling on-chip pulsed resonant excitation without any polarization filters. We theoretically demonstrate that the proposed devices have outstanding performance of a single-photon source with 80% coupling efficiency into on-chip planar waveguides and an ultra-small extinction ratio of 10-11, as well as robustness against quantum dot position deviation. Our design provides a promising method for scalable quantum chips with a filter-free high-efficiency single-photon source.
文献关键词：
中图分类号：
作者姓名：
Xingyu Chen;Rongbin Su;Jin Liu;Juntao Li;Xue-Hua Wang
作者机构：
State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics, Sun Yat-sen University, Guangzhou 510000, China
文献出处：
引用格式：
[1]Xingyu Chen;Rongbin Su;Jin Liu;Juntao Li;Xue-Hua Wang-.Scalable and highly efficient approach for an on-chip single-photon source)[J].光子学研究（英文）,2022(09):2066
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AB值：
0.588838
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