Experimental demonstration of frequency-degenerate bright EPR beams with a self-phase-locked OPO

Opt Express. 2008 Jun 23;16(13):9351-6. doi: 10.1364/oe.16.009351.

Abstract

We report the first experimental observation of bright EPR beams produced by a type-II optical parametric oscillator operating above threshold at frequency degeneracy. The degenerate operation is obtained by introducing a birefringent plate inside the cavity resulting in phase locking. After filtering the pump noise, which plays a critical role, continuous-variable EPR correlations between the orthogonally polarized signal and idler beams are demonstrated.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amplifiers, Electronic*
  • Birefringence
  • Computer Simulation
  • Electron Spin Resonance Spectroscopy / instrumentation*
  • Equipment Design
  • Equipment Failure Analysis
  • Light
  • Models, Theoretical*
  • Optics and Photonics / instrumentation*
  • Oscillometry / instrumentation*
  • Refractometry / instrumentation*
  • Scattering, Radiation