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Degenerate photon-pair generation in an ultracompact silicon photonic crystal waveguide
被引:14
作者:
He, Jiakun
[1
]
Clark, Alex S.
[1
]
Collins, Matthew J.
[1
]
Li, Juntao
[2
]
Krauss, Thomas F.
[3
]
Eggleton, Benjamin J.
[1
]
Xiong, Chunle
[1
]
机构:
[1] Univ Sydney, Ctr Ultrahigh Bandwidth Devices Opt Syst CUDOS, Inst Photon & Opt Sci, Sch Phys, Sydney, NSW 2006, Australia
[2] Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China
[3] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England
基金:
澳大利亚研究理事会;
英国工程与自然科学研究理事会;
关键词:
SLOW-LIGHT;
INTERFERENCE;
FIBER;
CHIP;
D O I:
10.1364/OL.39.003575
中图分类号:
O43 [光学];
学科分类号:
070207 ;
0803 ;
摘要:
We demonstrate degenerate, correlated photon-pair generation via slow-light-enhanced spontaneous four-wave mixing in a 96 m long silicon photonic crystal waveguide. Our device represents a more than 50 times smaller footprint than silicon nanowires. We have achieved a coincidence-to-accidental ratio as high as 47 at a photon generation rate of 0.001 pairs per pulse and 14 at a photon generation rate of 0.023 pairs per pulse, which are both higher than the useful level of 10. This demonstration provides a path to generate indistinguishable photons in an ultra-compact platform for future quantum photonic technologies. (C) 2014 Optical Society of America
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页码:3575 / 3578
页数:4
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