EXPERIMENTAL INVESTIGATION OF PHASE-CONJUGATION OF A SINGLE SIGNAL PULSE USING SELF-PUMPED 4-WAVE-MIXING IN A SINGLE BATIO3 CRYSTAL

Phase conjugate reflectivities of a single signal pulse in excess of 1 % are achieved in a single BaTiO3 crystal using a four-wave mixing con figuration, in which the same crystal produces self-pumped phase conju gation of a repetitively pulsed pump to generate the counterpropagatin g pump. The configuration is used to perform phase distortion correcti on on an image carried in a single pulse with 15 ns duration.