Parametric downconversion with optimized spectral properties in nonlinear photonic crystals

Abstract

We study the joint spectral properties of photon pairs generated by spontaneous parametric down-conversion in a one-dimensional nonlinear photonic crystal in a collinear, degenerate, type-II geometry. We show that the photonic crystal properties may be exploited to compensate for material dispersion and obtain photon pairs that are nearly factorable, in principle, for arbitrary materials and spectral regions, limited by the ability to fabricate the nonlinear crystal with the required periodic variation in the refractive indices for the ordinary and extraordinary waves.

9 pages, 6 figures

References in corpus (3)

• Spectral structure and decompositions of optical states, and their applications
• Generation of two-photon states with arbitrary degree of entanglement via nonlinear crystal superlattices
• Generation of Fourier transform limited heralded single photons

Cited by in corpus (1)

• Control, measurement and propagation of entanglement in photon pairs generated through type-II parametric downconversion