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Proceedings Paper

A source of polarization entangled photon pairs based on two-dimensional photonic crystals
Author(s): Li Xiao; Yin Wang; Wei Zhang; Yidong Huang; Jiangde Peng
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Paper Abstract

Spontaneous parametric down-conversion in two-dimensional photonic crystal made of semiconductor material with large quadratic nonlinear susceptibility is proposed to generate polarization entangled photon pairs. On one hand, the large quadratic nonlinear susceptibility of AlGaAs crystal insures the high nonlinear conversion efficiency; on the other hand, the abnormal dispersion property of two-dimensional photonic crystal causes the satisfaction of the phase-matching condition. In particular, the dispersion property sensitively depends on the structure of photonic crystal. Then the walk-off between the down-converted photons with orthogonal polarizations can be minimized through appropriate structure parameter design; hence compensation measures to mitigate labeling effect on polarization entangled photon pairs can be eliminated.

Paper Details

Date Published: 10 October 2006
PDF: 8 pages
Proc. SPIE 6352, Optoelectronic Materials and Devices, 63520Q (10 October 2006); doi: 10.1117/12.688290
Show Author Affiliations
Li Xiao, Tsinghua Univ. (China)
Yin Wang, Tsinghua Univ. (China)
Wei Zhang, Tsinghua Univ. (China)
Yidong Huang, Tsinghua Univ. (China)
Jiangde Peng, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 6352:
Optoelectronic Materials and Devices
Yong Hee Lee; Fumio Koyama; Yi Luo, Editor(s)

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