Properties of entangled photon pairs generated in periodically poled nonlinear crystals

Abstract

Using a rigorous quantum model a comprehensive study of physical properties of entangled photon pairs generated in spontaneous parametric down-conversion in chirped periodically-poled crystals is presented. Spectral, temporal, as well as spatial characteristics of photon pairs are analyzed. Spectral bandwidths, photon-pair flux, and entanglement area can be effectively controlled by chirping. Quantification of entanglement between photons in a pair is given. Splitting of entanglement area in the transverse plane accompanied by spectral splitting has been revealed. Using the model temperature dependencies of the experimental intensity profiles reported in literature have been explained.

9 pages, 9 figures

References in corpus (4)

• Experimental quantum teleportation
• Properties of entangled photon pairs generated in one-dimensional nonlinear photonic-band-gap structures
• Quantum properties of counter-propagating two-photon states generated in a planar waveguide
• Antisymmetric entangled two-photon states generated in nonlinear GaN/AlN photonic-band-gap structures

Cited by in corpus (10)

• High spatial entanglement via chirped quasi-phase-matched optical parametric down-conversion
• Tuning curve of type-0 spontaneous parametric down-conversion
• Direct observation of temporal coherence by weak projective measurements of photon arrival time
• Intense ultra-broadband down-conversion from randomly poled nonlinear crystals
• Chirped quasi-phase-matching with Gauss sums for production of biphotons
• Spatial properties of entangled photon pairs generated in nonlinear layered structures
• Randomly poled crystals as a source of photon pairs
• The role of volume and surface spontaneous parametric down-conversion in the generation of photon pairs in layered media
• Photon-pair generation in nonlinear metal-dielectric 1D photonic structures
• 800 nm pumped SPDC from chirped crystals