Triply-resonant Optical Parametric Oscillator by Four-wave Mixing with Rubidium Vapor inside an Optical Cavity

TL;DR

This paper demonstrates a triply-resonant optical parametric oscillator using rubidium vapor inside a cavity, enabling efficient nonlinear frequency conversion with potential quantum information applications.

Contribution

It introduces a method to achieve simultaneous resonance of Stokes, anti-Stokes, and pump fields using rubidium atoms in a cavity, simplifying the process of high-efficiency nonlinear conversion.

Findings

Successful experimental demonstration of triply-resonant oscillations

Achieved high efficiency in nonlinear frequency conversion

Generated bright Stokes and anti-Stokes beams suitable for quantum applications

Abstract

We present an experimental demonstration of simultaneous above-threshold oscillations of the Stokes and anti-Stokes fields together with the single pumping beam with rubidium atoms inside an optical standing-wave cavity. The triple resonant conditions can be achieved easily by making use of the large dispersions due to two-photon transitions in the three-level atomic system. This work provides a way to achieve high efficient nonlinear frequency conversion and the generated bright Stokes and anti-Stokes cavity output beams are potential resource for applications in quantum information science.