Dynamical amplification of phase conjugation using a modulated optical feedback in a Nd:YVO_4 laser

Hervé Gilles (1) , Sylvain Girard (2) , Mathieu Laroche (1) , Eric Lacot (3)

1 CIMAP - UMR 6252 - Centre de recherche sur les Ions, les MAtériaux et la Photonique
2 LHC - Laboratoire Hubert Curien
3 OPTIMA-LIPhy - OPTique et IMAgeries [Grenoble]

We demonstrate an efficient dynamical amplification of phase conjugation in the gain medium of a diode-pumped Nd3+:YVO4 solid state laser via excitation of its relaxation oscillations. Consequently, enhancement in the modulated amplitude of the phase conjugate wave is observed with up to +30 dB compared to classical homodyne approach.

Domaines: Optique [physics.optics]

Hervé Gilles, Sylvain Girard, Mathieu Laroche, Eric Lacot. Dynamical amplification of phase conjugation using a modulated optical feedback in a Nd:YVO_4 laser. Optics Letters, 2011, 36, pp.490. ⟨10.1364/OL.36.000490⟩. ⟨hal-00951756⟩