Counter-propagating entangled photons from a waveguide with periodic nonlinearity
Abstract
The conditions required for spontaneous parametric down-conversion in a waveguide with periodic nonlinearity in the presence of an unguided pump field are established. Control of the periodic nonlinearity and the physical properties of the waveguide permits the quasi-phase matching equations that describe counter-propagating guided signal and idler beams to be satisfied. We compare the tuning curves and spectral properties of such counter-propagating beams to those for co-propagating beams under typical experimental conditions. We find that the counter-propagating beams exhibit narrow bandwidth permitting the generation of quantum states that possess discrete-frequency entanglement. Such states may be useful for experiments in quantum optics and technologies that benefit from frequency entanglement.
Cite
@article{arxiv.quant-ph/0201150,
title = {Counter-propagating entangled photons from a waveguide with periodic nonlinearity},
author = {Mark C. Booth and Mete Atature and Giovanni Di Giuseppe and Alexander V. Sergienko and Bahaa E. A. Saleh and Malvin C. Teich},
journal= {arXiv preprint arXiv:quant-ph/0201150},
year = {2009}
}
Comments
submitted to Phys. Rev. A