Generation of photon pairs in symmetric factorable state by using photonic crystal fibers

TL;DR

This paper demonstrates an experimental method to generate photon pairs in a symmetric factorable state using photonic crystal fibers, with confirmed spectral de-correlation properties.

Contribution

It introduces a novel photonic crystal fiber-based source producing symmetric factorable photon pairs with specific wavelengths.

Findings

Photon pairs generated at 807.5 nm and 1364.1 nm

Spectral de-correlation confirmed through correlation measurements

Photon bandwidths are nearly identical

Abstract

A photonic crystal fiber based source of photon pairs in symmetric factorable state is experimentally demonstrated. The idler and signal photons, with almost the same bandwidth, are centering at 807.5 nm and 1364.1 nm, respectively. The property of the spectral de-correlation is confirmed by measuring the correlation dependence of photon pairs upon the spectra of pump, signal and idler photons.