Generation of degenerate, factorizable, pulsed squeezed light at telecom wavelengths

Gerrits, T. et al. (2011) Generation of degenerate, factorizable, pulsed squeezed light at telecom wavelengths. Optics Express, 19(24), p. 24434. (doi: 10.1364/OE.19.024434)

Abstract

We characterize a periodically poled KTP crystal that produces an entangled, two-mode, squeezed state with orthogonal polarizations, nearly identical, factorizable frequency modes, and few photons in unwanted frequency modes. We focus the pump beam to create a nearly circular joint spectral probability distribution between the two modes. After disentangling the two modes, we observe Hong-Ou-Mandel interference with a raw (background corrected) visibility of 86% (95%) when an 8.6 nm bandwidth spectral filter is applied. We measure second order photon correlations of the entangled and disentangled squeezed states with both superconducting nanowire single-photon detectors and photon-number-resolving transition-edge sensors. Both methods agree and verify that the detected modes contain the desired photon number distributions.

• Item Type: Articles
• Additional Information: This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OE.19.024434. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Hadfield, Professor Robert
• Authors: Gerrits, T., Stevens, M.J., Baek, B., Calkins, B., Lita, A., Glancy, S., Knill, E., Nam, S.W., Mirin, R.P., Hadfield, R., Bennink, R.S., Grice, W.P., Dorenbos, S., Zijlstra, T., Klapwijk, T., and Zwiller, V.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: Optics Express
• Publisher: Optical Society of America
• ISSN: 1094-4087
• Published Online: 01 January 2011
• Copyright Holders: Copyright © 2011 Optical Society of America
• First Published: First published in Optics Express 19(24):24434
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher