Direct fiber-coupled single photon source based on a photonic crystal waveguide
Abstract
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)(τ) 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.
Citation
Ahn , B-H , Lee , C-M , Lim , H-J , Schlereth , T W , Kamp , M , Höfling , S & Lee , Y-H 2015 , ' Direct fiber-coupled single photon source based on a photonic crystal waveguide ' , Applied Physics Letters , vol. 107 , no. 8 , 081113 . https://doi.org/10.1063/1.4929838
Publication
Applied Physics Letters
Status
Peer reviewed
ISSN
0003-6951Type
Journal article
Description
This research was supported by National Research Foundation of Korea (NRF) funded by Korea Government (MSIP) (Nos. 20070093863 and 2014M3C1A3052537). B.-H. Ahn acknowledges the support from National Junior Research Fellowship (No. 20110031262).Collections
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