Abstract

The effect of self-pumped phase conjugation (SPPC) of the light beam in the inverted laser crystal (LC) with the feedback loop was investigated in recent years. The possibility of SPPC in the reciprocal loop scheme is concerned with the refractive index grating which occurs due to difference of polarizability of the Nd ions in the metastable and the ground states [1]. The high efficiency of multipass geometry in the phase conjugation systems based on the laser crystals have been demonstrated for the degenerate four-wave mixing processes [2].

© 1996 IEEE