High-Quality Fiber-Based Heralded Single-Photon Source at 1.5 μm

A high-quality heralded single-photon source (HSPS) at 1.5 mu m is experimentally demonstrated based on spontaneous four wave-mixing in a piece of dispersion-shifted uber cooled by liquid nitrogen. To improve the up-limit of the preparation efficiency of the HSPS, commercial dense wavelength-divisio...

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Bibliographic Details
Published in:Chinese physics letters 2012-05, Vol.29 (5), p.54215-1-054215-3
Main Authors: Wang, Peng-Xiang, Zhou, Qiang, Zhang, Wei, Huang, Yi-Dong, Peng, Jiang-De
Format: Article
Language:English
Subjects:
Detectors
Fibers
Filtering
Filtration
Liquid nitrogen
Multiplexing
Splitting
Spontaneous
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Summary:A high-quality heralded single-photon source (HSPS) at 1.5 mu m is experimentally demonstrated based on spontaneous four wave-mixing in a piece of dispersion-shifted uber cooled by liquid nitrogen. To improve the up-limit of the preparation efficiency of the HSPS, commercial dense wavelength-division multiplexing components are used to reduce the loss of the filtering and splitting system between the fiber and the single-photon detectors. As a result, a preparation efficiency of 80% is realized under a g super((2)) (0) of 0.06 in onr HSPS experimental system, which is the best performance for the fiber-based HSPS at 1.5 mu m reported so far.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/29/5/054215