21 May 2018 Generating entangled photon pairs in a parallel crystal geometry
Author Affiliations +
Abstract
We present recent findings towards developing brighter entangled photon sources in critically phase matched (CPM) nonlinear crystals. Specifically, we use type-I collinear phase matching at non-degenerate wavelengths in parallel β-Barium Borate (BBO) crystals to generate pairs of polarization entangled photons for free-space quantum key distribution (QKD). We first review the entangled source configuration and then discuss ways to further improve the source brightness by means of tailoring the pump and collection modes. We present preliminary results that may lead to brighter entangled photon sources that are intrinsically robust to changes in their environment.
Conference Presentation
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alexander Lohrmann, Aitor Villar, Alexander Ling, "Generating entangled photon pairs in a parallel crystal geometry", Proc. SPIE 10674, Quantum Technologies 2018, 106740X (21 May 2018); doi: 10.1117/12.2306610; https://doi.org/10.1117/12.2306610
PROCEEDINGS
7 PAGES + PRESENTATION

SHARE
Back to Top