loading
Papers
  • Login
  • Sign-Up

Research.Publish.Connect.

Paper

Paper Unlock

Authors: Nuno A. Silva and Armando N. Pinto

Affiliation: University of Aveiro and Instituto de Telecomunicações, Portugal

ISBN: 978-989-758-008-6

Keyword(s): Quantum Correlated Photon-pairs, Raman Scattering, Spontaneous Four-wave Mixing, Waveguide Absorption.

Related Ontology Subjects/Areas/Topics: Fiber Optics ; Lasers ; Mobile Software and Services ; Nonlinear Optics ; Optics ; Photonics ; Photonics, Optics and Laser Technology ; Quantum Information and Measurement ; Telecommunications ; Wireless Information Networks and Systems

Abstract: We investigate the impact of waveguide loss on the generation rate of quantum correlated photon-pairs through four-wave mixing in a chalcogenide glass fiber. The obtained results are valid even when the photon-pairs are generated in a medium with non-negligible loss, αL>> 1. The impact of the loss is quantified through the analysis of the true, total and accidental counting rates at waveguide output. We use the coincidence-to- accidental ratio (CAR) as a figure of merit of the photon-pair source. Results indicate that, the CAR parameter tends to decrease with the increase of the waveguide length, until L < 1/α. However, a continuous increase of the waveguide length tends to lead to an increase on the CAR value. In that non-negligible loss regime, αL>>1, we are able to observe a significant decrease on the value of all coincidence counting rates. Nevertheless, that decrease is even more pronounced on the accidental counting rate. Moreover, for waveguide length L = 10/α we are able to obtain a CAR of the order of 70, which is higher than the CAR value for the specific case of α = 0 with L = 2 cm, i.e. CAR=42. This indicates that the waveguide loss can improve the degree of quantum correlation between the photon-pairs. (More)

PDF ImageFull Text

Download
Sign In Guest: Register as new SciTePress user or Join INSTICC now for free.

Sign In SciTePress user: please login.

Sign In INSTICC Members: please login. If not a member yet, Join INSTICC now for free.

PDF ImageMy Papers

You are not signed in, therefore limits apply to your IP address 54.196.47.145. INSTICC members have higher download limits (free membership now)

In the current month:
Recent papers: 100 available of 100 total
2+ years older papers: 200 available of 200 total

Paper citation in several formats:
A. Silva N. and N. Pinto A. (2014). Photon-pair Generation in Chalcogenide Glass - Role of Waveguide Linear Absorption.In Proceedings of 2nd International Conference on Photonics, Optics and Laser TechnologyISBN 978-989-758-008-6, pages 5-10. DOI: 10.5220/0004651400050010

@conference{photoptics14,
author={Nuno A. Silva and Armando N. Pinto},
title={Photon-pair Generation in Chalcogenide Glass - Role of Waveguide Linear Absorption},
booktitle={Proceedings of 2nd International Conference on Photonics, Optics and Laser Technology},
year={2014},
pages={5-10},
doi={10.5220/0004651400050010},
isbn={978-989-758-008-6},
}

TY - CONF

JO - Proceedings of 2nd International Conference on Photonics, Optics and Laser Technology
TI - Photon-pair Generation in Chalcogenide Glass - Role of Waveguide Linear Absorption
SN - 978-989-758-008-6
AU - A. Silva N.
AU - N. Pinto A.
PY - 2014
SP - 5
EP - 10
DO - 10.5220/0004651400050010

Sorted by: Show papers

Note: The preferred Subjects/Areas/Topics, listed below for each paper, are those that match the selected paper topics and their ontology superclasses.
More...

Login or register to post comments.

Comments on this Paper: Be the first to review this paper.

Show authors

Note: The preferred Subjects/Areas/Topics, listed below for each author, are those that more frequently used in the author's papers.
More...