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Proceedings Paper

Spatial and spectral mode selection of heralded single photons from parametric down-conversion in bulk and PPLN
Author(s): Stefania Castelletto; Ivo Pietro Degiovanni; Alan Migdall; Valentina Schettini
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Paper Abstract

We describe two experiments in which photon pairs from a parametric down-conversion source are efficiently coupled into single-mode fibers, and estimation of the heralding efficiency is attempted. One experiment is based on a pulsed pump configuration in a bulk crystal and the other experiment on a CW periodically poled downconverter. The heralding and heralded photons were analyzed spectrally by a monochromator to determine the effect of the correlation between spectral and spatial mode-matching in the heralding efficiency. Moreover, we theoretically model the heralding efficiency of both bulk and periodically poled crystals. Analysis of spatial and spectral mode selection, and their mutual correlation, allows controlled engineering of the spectral and spatial emission modes of PDC single photons.

Paper Details

Date Published: 14 September 2005
PDF: 12 pages
Proc. SPIE 5893, Quantum Communications and Quantum Imaging III, 589315 (14 September 2005); doi: 10.1117/12.619426
Show Author Affiliations
Stefania Castelletto, Istituto Elettrotecnico Nazionale G. Ferraris (Italy)
Ivo Pietro Degiovanni, Istituto Elettrotecnico Nazionale G. Ferraris (Italy)
Alan Migdall, National Institute of Standards and Technology (United States)
Valentina Schettini, Istituto Elettrotecnico Nazionale G. Ferraris (Italy)

Published in SPIE Proceedings Vol. 5893:
Quantum Communications and Quantum Imaging III
Ronald E. Meyers; Yanhua Shih, Editor(s)

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