Correlated photon pair generation in AlGaAs nanowaveguides via spontaneous four-wave mixing

被引：34
|
作者：
Kultavewuti, Pisek [1 ]
Zhu, Eric Y. [1 ]
Qian, Li [1 ]
Pusino, Vincenzo [2 ]
Sorel, Marc [2 ]
Aitchison, J. Stewart [1 ]
机构：
[1] Univ Toronto, Dept Elect & Comp Engn, 10 Kings Coll Rd, Toronto, ON M5S 3G4, Canada
[2] Univ Glasgow, Sch Engn, Glasgow G12 8QQ, Lanark, Scotland
来源：
OPTICS EXPRESS | 2016年 / 24卷 / 04期
基金：
加拿大自然科学与工程研究理事会;
关键词：
WAVE-GUIDES; QUANTUM; ENTANGLEMENT; DEPENDENCE; EFFICIENCY; GAAS;
D O I：
10.1364/OE.24.003365
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate a source of correlated photon pairs which will have applications in future integrated quantum photonic circuits. The source utilizes spontaneous four-wave mixing (SFWM) in a dispersion-engineered nanowaveguide made of AlGaAs, which has merits of negligible two-photon absorption and low spontaneous Raman scattering (SpRS). We observe a coincidence-to-accidental (CAR) ratio up to 177, mainly limited by propagation losses. Experimental results agree well with theoretical predictions of the SFWM photon pair generation and the SpRS noise photon generation. We also study the effects from the SpRS, propagation losses, and waveguide lengths on the quality of our source. (C) 2016 Optical Society of America
引用
收藏
页码：3365 / 3376
页数：12
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