Tailored Photon-Pair Generation in Optical Fibers

被引：152

作者：

Cohen, Offir ^{[1
]}

Lundeen, Jeff S. ^{[1
]}

Smith, Brian J. ^{[1
]}

Puentes, Graciana ^{[1
]}

Mosley, Peter J. ^{[1
]}

Walmsley, Ian A. ^{[1
]}

机构：

[1] Univ Oxford, Clarendon Lab, Oxford OX1 3PU, England

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 12期

基金：

英国工程与自然科学研究理事会;

关键词：

QUANTUM; CANCELLATION;

D O I：

10.1103/PhysRevLett.102.123603

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We experimentally control the spectral structure of photon pairs created via spontaneous four-wave mixing in microstructured fibers. By fabricating fibers with designed dispersion, one can manipulate the photons' wavelengths, joint spectrum, and, thus, entanglement. As an example, we produce photon pairs with no spectral correlations, allowing direct heralding of single photons in pure-state wave packets without filtering. We achieve an experimental purity of (85.9 +/- 1.6)%, while theoretical analysis and preliminary tests suggest that 94.5% purity is possible with a much longer fiber.

引用

页数：4

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