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Self-pumped phase conjugation(SPPC) and mutual-pumped phas e conjugation (MPPC) have been found to coexist in Ce∶BaTiO 3 by using two coherent beams of 514.5nm wavelength from an argon ion laser. Both phase conjugations are of the stimulated backscattering and four-wave mixing type. For 7/6 incident power ratio and 26 mW total incident power,the shortest phase conjugate mirror formation time is 10s . Phase conjugate reflectivity of one the beams can reach 70%,which is ～20% higher than the SPPC reflectivity using only one beam. When the total incident power is increased to 40 mW and the incident power ratio remains constant, a maximum phase conjugatate reflectivity of as much as 88% is obtained.
Self-pumped phase conjugation (SPPC) and mutual-pumped phas e conjugation (MPPC) have been found to coexist in Ce: BaTiO 3 by using two coherent beams of 514.5 nm wavelength from an argon ion laser. Both phase conjugations are of the stimulated For 7/6 incident power ratio and 26 mW total incident power, the shortest phase conjugate mirror formation time is 10s. Phase conjugate reflectivity of one of the beams can reach 70%, which is ~ 20% higher than the SPPC reflectivity using only one beam. When the total incident power is increased to 40 mW and the incident power ratio remains constant, a maximum phase conjugate reflectivity of as much as 88% is obtained.