An on-chip waveguide-based source of entangled photons capable of switching between generating time-energy entangled and hyperentangled (entangled in both time energy and polarization) photon pairs is proposed. The switching can be done all-optically by rotating the pump polarization. The source is based on multichannel phase matching in Bragg reflection waveguides achieved by engineering the Fresnel reflection of photonic bandgap claddings for differently polarized modes. Analytical results are confirmed in fully vectorial numerical simulations.
© 2011 Optical Society of America
Original Manuscript: June 24, 2011
Revised Manuscript: August 11, 2011
Manuscript Accepted: August 11, 2011
Published: September 8, 2011
S. V. Zhukovsky, D. Kang, P. Abolghasem, L. G. Helt, J. E. Sipe, and A. S. Helmy, "Proposal for on-chip generation and control of photon hyperentanglement," Opt. Lett. 36, 3548-3550 (2011)