Pulsed squeezed light: Simultaneous squeezing of multiple modes

Wojciech Wasilewski, A. I. Lvovsky, Konrad Banaszek, and Czesław Radzewicz
Phys. Rev. A 73, 063819 – Published 20 June 2006

Abstract

We analyze the spectral properties of squeezed light produced by means of pulsed, single-pass degenerate parametric down-conversion. The multimode output of this process can be decomposed into characteristic modes undergoing independent squeezing evolution akin to the Schmidt decomposition of the biphoton spectrum. The main features of this decomposition can be understood using a simple analytical model developed in the perturbative regime. In the strong pumping regime, for which the perturbative approach is not valid, we present a numerical analysis, specializing to the case of one-dimensional propagation in a beta-barium borate waveguide. Characterization of the squeezing modes provides us with an insight necessary for optimizing homodyne detection of squeezing. For a weak parametric process, efficient squeezing is found in a broad range of local oscillator modes, whereas the intense generation regime places much more stringent conditions on the local oscillator. We point out that without meeting these conditions, the detected squeezing can actually diminish with the increasing pumping strength, and we expose physical reasons behind this inefficiency.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
2 More
  • Received 23 December 2005

DOI:https://doi.org/10.1103/PhysRevA.73.063819

©2006 American Physical Society

Authors & Affiliations

Wojciech Wasilewski1,2, A. I. Lvovsky3, Konrad Banaszek1, and Czesław Radzewicz2

  • 1Institute of Physics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Toruń, Poland
  • 2Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland
  • 3Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada T2N 1N4

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 73, Iss. 6 — June 2006

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review A

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×