Observation of squeezing using cascaded nonlinearity
Abstract
We have observed that the pump beam reflected by a triply resonant optical parametric oscillator, after a cascaded second-order nonlinear interaction in the crystal, is significantly squeezed. The maximum measured squeezing in our device is 30% (output beam squeezing inferred: 48%). The direction of the noise ellipse depends on the cavity detuning and can be adjusted from intensity squeezing to phase squeezing.
- Publication:
-
EPL (Europhysics Letters)
- Pub Date:
- October 1997
- DOI:
- 10.1209/epl/i1997-00418-8
- Bibcode:
- 1997EL.....40...25K
- Keywords:
-
- 42.50.Dv;
- 42.50.Lc;
- 42.65.Ky;
- Nonclassical states of the electromagnetic field including entangled photon states;
- quantum state engineering and measurements;
- Quantum fluctuations quantum noise and quantum jumps;
- Frequency conversion;
- harmonic generation including higher-order harmonic generation