Spectral properties of broadband biphotons generated from PPMgSLT under a type-II phase-matching condition

被引：11

作者：

Bisht, Nandan S. ^{[1
]}

Shimizu, Ryosuke ^{[1
]}

机构：

[1] Univ Electrocommun, Ctr Frontier Sci & Engn, Chofu, Tokyo 1828585, Japan

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2015年 / 32卷 / 04期

关键词：

ENTANGLED PHOTON-PAIRS; PARAMETRIC DOWNCONVERSION; WAVELENGTH; FIBER; INTERFERENCE;

D O I：

10.1364/JOSAB.32.000550

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report the spectral properties of broadband biphotons generated by pulsed type-II spontaneous parametric down-conversion based on a periodically poled MgO-doped stoichiometric LiTaO3 (PPMgSLT). Spectroscopic and interferometric measurements were used to characterize the biphoton source. For the spectroscopic measurements, we used conventional spectroscopy and joint spectral intensity measurements. For the interferometric measurements, sum-and difference-frequency two-photon interference experiments were performed to estimate the spectral correlation and to ensure the broadband nature of biphotons, respectively. When using a picosecond Ti: sapphire as a pump source, the spectral width of biphotons was over 40 nm. Finally, we demonstrated the relationship between the two-photon interference visibility and the symmetricity of the joint spectral distribution. (C) 2015 Optical Society of America

引用

页码：550 / 554

页数：5

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