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Proceedings Paper

InGaAsP/InP-air-aperture microcavities for single-photon sources at 1.55-um telecommunication band
Author(s): Sijie Guo; Yanzhen Zheng; Zhuo Weng; Haicheng Yao; Yuhao Ju; Lei Zhang; Zhilei Ren; Ruoyao Gao; Zhiming M. Wang; Hai-Zhi Song
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Paper Abstract

InGaAsP/InP-air-aperture micropillar cavities are proposed to serve as 1.55-μm single photon sources, which are indispensable in silica-fiber based quantum information processing. Owing to air-apertures introduced to InP layers, and adiabatically tapered distributed Bragg-reflector structures used in the central cavity layers, the pillar diameters can be less than 1 μm, achieving mode volume as small as ~(λ/n)3, and the quality factors are more than 104 - 105, sufficient to increase the quantum dot emission rate for 100 times and create strong coupling between the optical mode and the 1.55- μm InAs/InP quantum dot emitter. The mode wavelengths and quality factors are found weakly changing with the cavity size and the deviation from the ideal shape, indicating the robustness against the imperfection of the fabrication technique. The fabrication, simply epitaxial growth, dry and chemical etching, is a damage-free and monolithic process, which is advantageous over previous hybrid cavities. The above properties satisfy the requirements of efficient, photonindistinguishable and coherent 1.55-μm quantum dot single photon sources, so the proposed InGaAsP/InP-air-aperture micropillar cavities are prospective candidates for quantum information devices at telecommunication band.

Paper Details

Date Published: 4 November 2016
PDF: 8 pages
Proc. SPIE 10027, Nanophotonics and Micro/Nano Optics III, 100270R (4 November 2016); doi: 10.1117/12.2247841
Show Author Affiliations
Sijie Guo, Univ. of Electronic Science and Technology of China (China)
Yanzhen Zheng, Univ. of Electronic Science and Technology of China (China)
Zhuo Weng, Univ. of Electronic Science and Technology of China (China)
Haicheng Yao, Univ. of Electronic Science and Technology of China (China)
Yuhao Ju, Univ. of Electronic Science and Technology of China (China)
Lei Zhang, Univ. of Electronic Science and Technology of China (China)
Zhilei Ren, Univ. of Electronic Science and Technology of China (China)
Ruoyao Gao, Univ. of Electronic Science and Technology of China (China)
Zhiming M. Wang, Univ. of Electronic Science and Technology of China (China)
Hai-Zhi Song, Univ. of Electronic Science and Technology of China (China)
Southwest Institute of Technical Physics (China)


Published in SPIE Proceedings Vol. 10027:
Nanophotonics and Micro/Nano Optics III
Zhiping Zhou; Kazumi Wada, Editor(s)

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