Generation of bright visible photon pairs using a periodically poled stoichiometric lithium tantalate crystal

被引：7
|
作者：
Lee, Hee Jung [1 ]
Kim, Heonoh [1 ]
Cha, Myoungsik [1 ]
Moon, Han Seb [1 ]
机构：
[1] Pusan Natl Univ, Dept Phys, Busan 609735, South Korea
来源：
OPTICS EXPRESS | 2015年 / 23卷 / 11期
基金：
新加坡国家研究基金会;
关键词：
POLARIZATION-ENTANGLED PHOTONS; LITAO3; GROWTH;
D O I：
10.1364/OE.23.014203
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate a 711-nm-wavelength efficient photon-pair source under the condition of non-collinear type-0 quasi-phase-matching configuration in a periodically poled MgO-doped stoichiometric lithium tantalate (PPSLT) crystal pumped by a 355.7-nm laser. Such degenerate visible photon-pairs in the wavelength region of 710 nm are practically useful for increasing the data collection rate in silicon-based single photon detectors. We confirm that the visible photon pairs in the PPSLT crystal form a bright, high-purity source of correlated photons. Our results show a coincidence counting rate per input pump power of 98,500 Hz/mW, conversion efficiency of 1.66 x 10(-9), and second-order coherence function g((2))(0) of 0.087 +/- 0.002/mW. (C) 2015 Optical Society of America
引用
收藏
页码：14203 / 14210
页数：8
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