摘要
Self-pumped phase conjugate in trapezoid-cut Co-doped (KNa)_(0.1)(Sr_(0.75)Ba_(0.25))_(0.9)Nb_(2)O_(6)(Co-KNSBN)crystal was demonstrated without external reflection mirrors and applied field,phase conjugation reflectivities as high as 40.5%were measured.The threshold power was lower than 0.02 W/cm^(2).The device was operated in one-region four-wave mixing using the photorefractive effect.
