Generation of correlated photons in controlled spatial modes by downconversion in nonlinear waveguides

被引：116

作者：

Banaszek, K ^{[1
]}

U'Ren, AB ^{[1
]}

Walmsley, IA ^{[1
]}

机构：

[1] Univ Rochester, Inst Opt, Rochester, NY 14627 USA

来源：

OPTICS LETTERS | 2001年 / 26卷 / 17期

关键词：

D O I：

10.1364/OL.26.001367

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report the observation of correlated photon pairs generated by spontaneous parametric downconversion of a 400-nm pump pulse in a quasi-phase-matched KTiOPO(4) nonlinear waveguide. The highest ratio of coincidence to single-photon count rates observed near 800 mn exceeds 18%. This suggests that nonlinear waveguides will be a promising source of correlated photons for metrology and quantum information processing applications. We also discuss possibilities of controlling the spatial characteristics of the downconverted photons produced in multimode waveguide structures. (C) 2001 Optical Society of America.

引用

页码：1367 / 1369

页数：3

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