Direct fiber-coupled single photon source based on a photonic crystal waveguide

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A single photon source plays a key role in quantum applications such as quantum computers and quantum communications. Epitaxially grown quantum dots are one of the promising platforms to implement a good single photon source. However, it is challenging to realize an efficient single photon source based on semiconductor materials due to their high refractive index. Here we demonstrate a direct fiber coupled single photon source with high collection efficiency by employing a photonic crystal (PhC) waveguide and a tapered micro-fiber. To confirm the single photon nature, the second-order correlation function g((2))(tau) is measured with a Hanbury Brown-Twiss setup. The measured g((2))(0) value is 0.15, and we can estimate 24% direct collection efficiency from a quantum dot to the fiber.
Publisher
AMER INST PHYSICS
Issue Date
2015-08
Language
English
Article Type
Article
Keywords

QUANTUM-DOT; TRAPPED IONS; WAVELENGTHS; COLLECTION; RESONATOR; COMPUTERS; NANOWIRE; SLAB

Citation

APPLIED PHYSICS LETTERS, v.107, no.8

ISSN
0003-6951
DOI
10.1063/1.4929838
URI
http://hdl.handle.net/10203/203002
Appears in Collection
PH-Journal Papers(저널논문)
Files in This Item
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