Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Conference on Lasers and Electro-Optics

Temporal control of correlated photons in noncollinear type-I parametric down-conversion

Andrea T. Joseph, Roger Andrews

Published Jan 1, 2006• 0 citations
Publisher

Abstract

We describe temporal shaping of narrowband noncollinear type-I down-converted photons using a symmetric spectral phase distribution. It is found that the time separation of correlated pairs exhibits an oscillatory dependence on the modulation depth.
DOI
10.1109/cleo.2006.4628524

Related papers

Phase-modulated shaping of narrowband type-I parametric down-converted photons

Andrea T. Joseph, Roger Andrews, Edward R. Pike +1 more

We present a general theoretical description of the temporal shaping of narrowband noncollinear type-I down-converted photons using a spectral phase filter with a symmetric phase distribution. By manipulating the spectral phase of the signal or idler photon, we demonstrate control of the correlation time and shape of the two-photon wavefunction with modulation frequency and modulation depth of the phase distribution.

New Journal of Physics•Jun 9, 2006•3 citations

Phase-modulated shaping of narrowband type-I parametric down-converted photons

Andrea T. Joseph, R. A. Andrews, Edward R. Pike +1 more

We present a general theoretical description of the temporal shaping of narrowband noncollinear type-I down-converted photons using a spectral phase filter with a symmetric phase distribution. By manipulating the spectral phase of the signal or idler photon, we demonstrate control of the correlation time and shape of the two-photon wave function with modulation frequency and modulation depth of the phase distribution.

arXiv:quant-ph/0605152•May 17, 2006•0 citations

Phase-modulated Control of Hong-Ou-Mandel Two-photon Interference

Andrea T. Joseph, Roger Andrews

We describe temporal control of two-photon interference of narrowband noncollinear type-I down-converted photons using symmetric spectral phase modulation. We find that the interference-fringe intensities can be controlled using the modulation depth and frequency.

Nonlinear Optics•Jan 1, 2007•0 citations

Control of photon correlations in type II parametric down-conversion

Roger Andrews, Andrea T. Joseph, Edward R. Pike +1 more

In this paper we describe theoretically quantum control of temporal correlations of entangled photons produced by collinear type II spontaneous parametric down-conversion. We examine the effect of spectral phase modulation of the signal or idler photons arriving at a 50/50 beam splitter on the temporal shape of the entangled-photon wave packet . The coincidence count rate is calculated analytically for photon pairs in terms of the modulation depth applied to either the signal or idler beam with a spectral phase filter. It is found that the two-photon coincidence rate can be controlled by varying the modulation depth of the spectral filter.

arXiv:quant-ph/0509198•Journal of Optics B Quantum and Semiclassical Optics•Nov 4, 2005•5 citations

Shaping the Waveform of Entangled Photons

Alejandra Valencia, Alessandro Ceré, Xiaojuan Shi +2 more

We demonstrate experimentally tunable control of the joint spectrum, i.e., waveform and degree of frequency correlations, of paired photons generated in spontaneous parametric down-conversion. This control is mediated by the spatial shape of the pump beam in type-I noncollinear configurations.

arXiv:0709.1810•Physical Review Letters•Dec 14, 2007•119 citations

Noncollinear correlated photon pair source in the 1550 nm telecommunication band

Tae-Gon Noh, Heonoh Kim, Chun Youn +4 more

We present a source of noncollinear correlated photon pairs in the standard 1550 nm telecommunication band. They are generated by a spontaneous parametric down-conversion process and emitted in a cone because of type-I noncollinear phase matching. Within the band, the source gives a completely flexible choice of the frequencies of the photon pairs, and correlation properties related to spatial momentum as well as energy and time can easily be utilized.We characterize the source by measuring the spatial intensity distribution of the down-converted light and by performing coincidence counting.

Optics Express•Jan 1, 2006•11 citations
In this paper we describe theoretically quantum control of temporal correlations of entangled photons produced by collinear type II spontaneous parametric down-conversion. We examine the effect of spectral phase modulation of the signal or idler photons arriving at a 50/50 beam splitter on the temporal shape of the entangled-photon wave packet . The coincidence count rate is calculated analytically for photon pairs in terms of the modulation depth applied to either the signal or idler beam with a spectral phase filter. It is found that the two-photon coincidence rate can be controlled by varying the modulation depth of the spectral filter.
We present a source of noncollinear correlated photon pairs in the standard 1550 nm telecommunication band. They are generated by a spontaneous parametric down-conversion process and emitted in a cone because of type-I noncollinear phase matching. Within the band, the source gives a completely flexible choice of the frequencies of the photon pairs, and correlation properties related to spatial momentum as well as energy and time can easily be utilized.We characterize the source by measuring the spatial intensity distribution of the down-converted light and by performing coincidence counting.