PICOSECOND PHASE-CONJUGATION AND 2-WAVE COUPLING IN STRONTIUM BARIUM NIOBATE

Picosecond phase conjugation and two-wave coupling in cerium-doped str ontium barium niobate at 778 nm were studied. The phase conjugation re flectivity at 778 nm was measured to be R(pc) = 58%. It is close to th at pumped by a continuous-wave pump source. The temporal width t(pc) a nd spectral width DELTAlambda(pc) of the phase conjugate pulse were me asured to be the same as that of the pump pulse. The intensity couplin g gain of two-wave coupling as a function of time delay tau(D) between two beams was also studied.