A source of polarization entangled photon pairs based on two-dimensional photonic crystals

Li Xiao; Yin Wang; Wei Zhang; Yidong Huang; Jiangde Peng

doi:10.1117/12.688290

10 October 2006 A source of polarization entangled photon pairs based on two-dimensional photonic crystals

Li Xiao, Yin Wang, Wei Zhang, Yidong Huang, Jiangde Peng

Proceedings Volume 6352, Optoelectronic Materials and Devices; 63520Q (2006) https://doi.org/10.1117/12.688290
Event: Asia-Pacific Optical Communications, 2006, Gwangju, South Korea

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.

Citation Download Citation

Li Xiao, Yin Wang, Wei Zhang, Yidong Huang, and Jiangde Peng "A source of polarization entangled photon pairs based on two-dimensional photonic crystals", Proc. SPIE 6352, Optoelectronic Materials and Devices, 63520Q (10 October 2006); https://doi.org/10.1117/12.688290

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