Abstract

A technique to generate polarization entangled photons using concurrent type-I and type-0 second-order nonlinear processes in monolithic Bragg reflection waveguides is presented and analyzed. Concurrent phase matching is achieved by lithographic tuning of the waveguide ridge width. Nearly perfect entanglement is achievable on-chip through appropriate epistructure design without the need of spectral filtering and group velocity compensation. Theoretical calculations predict that a high quantum interference visibility could be experimentally achieved with the pair generation rate of each process being approximately $3.0\times {10}^6\mathrm{pairs}/\mathrm{s}/\mathrm{mW}/\mathrm{GHz}$

©2012 Optical Society of America

Bragg reflection waveguides as integrated sources of entangled photon pairs

Sergei V. Zhukovsky, Lukas G. Helt, Payam Abolghasem, Dongpeng Kang, John E. Sipe, and Amr S. Helmy
J. Opt. Soc. Am. B 29(9) 2516-2523 (2012)

Generation of polarization-entangled photon pairs via concurrent spontaneous parametric downconversions in a single χ⁽²⁾ nonlinear photonic crystal

Y.-X. Gong, P. Xu, J. Shi, L. Chen, X. Q. Yu, P. Xue, and S. N. Zhu
Opt. Lett. 37(21) 4374-4376 (2012)

Bragg reflection waveguide as a source of wavelength-multiplexed polarization-entangled photon pairs

Jiří Svozilík, Martin Hendrych, and Juan P. Torres
Opt. Express 20(14) 15015-15023 (2012)

Non-collinear and non-degenerate polarization-entangled photon generation via concurrent type-I parametric downconversion in PPLN

Hugues Guillet de Chatellus, Alexander V. Sergienko, Bahaa E. A. Saleh, Malvin C. Teich, and Giovanni Di Giuseppe
Opt. Express 14(21) 10060-10072 (2006)

Generation of polarization entangled photon pairs at telecommunication wavelength using cascaded χ⁽²⁾ processes in a periodically poled LiNbO₃ ridge waveguide

Shin Arahira, Naoto Namekata, Tadashi Kishimoto, Hiroki Yaegashi, and Shuichiro Inoue
Opt. Express 19(17) 16032-16043 (2011)