Generation of Polarization Entangled Photon Pairs in a Planar Waveguide
Divya Bharadwaj, K. Thyagarajan
TL;DR
This paper analyzes a planar waveguide for generating polarization-entangled photon pairs via spontaneous parametric down conversion, highlighting its higher efficiency, ease of collection, and wavelength tunability for quantum optics applications.
Contribution
It introduces a novel planar waveguide design that improves efficiency and tunability in entangled photon pair generation compared to bulk crystals.
Findings
Higher conversion efficiency than bulk crystals
Ease of photon collection similar to channel waveguides
Wavelength tunability of the generated photon pairs
Abstract
In this paper, we analyze spontaneous parametric down conversion in a 2D slant strip type periodically poled planar waveguide and show that such a configuration has efficiencies higher than in the case of bulk crystals with the possibility of ease of collection like in channel waveguides with the additional feature of wavelength tunability. The proposed design should find applications in quantum processing using integrated quantum optics.
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