This paper reports that the tunable self-phase-stabilized infrared laser pulses have been generated from a two stage optical parametric amplifier.With an 800 nm pump source,the output idler pulses are tunable from 1.3μm to 2.3μm,and the maximum output energy of the idler pulses is higher than 1 mJ at 1.6 μm by using 6 mJ pump laser.A carrier-envelope phase fluctuation of～0.15 rad(rms)for the idler pulses is measured for longer than one hour by using a home build f-to-2f interferometer.