PHOTOREFRACTIVE ADAPTIVE TRANSMISSION-SYSTEM

A photorefractive system based on the combined operation of a strontiu m barium niobate input amplifier and a self-pumped barium titanate pha se-conjugator crystal is presented and analyzed. Amplified real-time p hase-conjugate wave-front generation in this system is demonstrated. T he system's ability to all-optically, temporally modulate a weak probe signal and to transmit it back to its source by means of amplified dy namic phase conjugation demonstrates its potential in adaptive optical transmission schemes.