Intracavity four wave mixing using modulated optical feedback in a diode-pumped Nd:YVO4 laser

Intracavity four wave mixing using modulated optical feedback in a diode-pumped Nd:YVO
₄
laser is reported. Phase conjugation in intracavity FWM experiment with a solid-state laser is sensitive to the specific dynamical properties of the class-B laser. Dynamical response on the phase conjugate beam is strongly enhanced when the AM frequency is resonant with the relaxation oscillations frequency of the laser.