Lasers, Fiber Optics, and Communications

Relative-phase and time-delay maps all over the emission cone of hyperentangled photon source

[+] Author Affiliations
Salem F. Hegazy

Cairo University, National Institute of Laser Enhanced Sciences, Giza, Egypt

Zewail City of Science and Technology, Centre for Photonics and Smart Materials, Giza, Egypt

Yahia A. Badr

Cairo University, National Institute of Laser Enhanced Sciences, Giza, Egypt

Salah S. A. Obayya

Zewail City of Science and Technology, Centre for Photonics and Smart Materials, Giza, Egypt

Opt. Eng. 56(2), 026114 (Feb 16, 2017). doi:10.1117/1.OE.56.2.026114
History: Received September 11, 2016; Accepted February 1, 2017
Text Size: A A A

Abstract.  Realizing high flux of hyperentangled photons requires collecting photon pairs simultaneously entangled in multiple degrees of freedom over relatively wide spectral and angular emission ranges. We consider the hyperentangled photons produced by superimposing noncollinear spontaneous parametric down conversion (SPDC) emissions of two crossed and coherently pumped nonlinear crystals. We present an approach for determining the directional-spectral relative-phase and time-delay maps of hyperentangled photons all over the SPDC emission cone. A vectorial representation is adopted for all parameters of concern. This enables us to examine unconventional arrangements such as the autocompensation of relative-phase and time-delay via oblique pump incidence. While prior works often adopt first-order approximation, it is shown that the actual directional relative-phase map is very well approximated by a quadratic function of the polar angle of the two-photon emission while negligibly varying with the azimuthal angle.

Figures in this Article
© 2017 Society of Photo-Optical Instrumentation Engineers

Topics

Crystals ; Photons

Citation

Salem F. Hegazy ; Yahia A. Badr and Salah S. A. Obayya
"Relative-phase and time-delay maps all over the emission cone of hyperentangled photon source", Opt. Eng. 56(2), 026114 (Feb 16, 2017). ; http://dx.doi.org/10.1117/1.OE.56.2.026114


Tables

Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

PubMed Articles
Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.