With self-pumped phase conjugator (SPPC) of Ce∶BaTiO3, the performance of CW Ti∶sapphire laser has been improved. The output threshold decreases from 4.7 W (without phase conjugator cavity) to 3.6 W (with phase conjugator cavity) and the slope efficiency increases from 26% to 30%. Theoretic analyses with external-cavity laser theory are in accordance with the above experimental results. In addition, the frequency of the laser appears a blue shift of 142 MHz at 3rd minute after SPPC feedback and a red shift of 243 MHz at 6th minute after SPPC feedback, which are due to phase-conjugate self-scanning effect. Moreover, the dark storage characteristic of the SPPC grating is obtained by measuring the dark decay of SPPC reflectivities. In dark, the SPPC reflectivity declines from 80.5% to 75% in the initial 1.5 hours, subsequently decays slowly, and remains almost at the former value for about 15 hours.