A laser diode (LD) end pumped active- and passive- mode locked Nd:YAP laser at 1341 nm is reported. A Nd:YAP laser crystal is used as gain material. A saturable absorber V3+:YAG is used for passive mode locking and an acousto-optical modulator (AOM) is used for active mode locking. The output pulse train with a total energy of 0.82 mJ is obtained under the conditions of pump energy of 50 mJ and frequency of 10 Hz. The full-width at half-maximum (FWHM) is measured as 570 ns. The pulse repetition period is 7.7 ns. There are around 75 pulses in the pulse train,and each pulse has an average energy of about 11 μJ. An opto-electronic RbTiOPO4 (RTP) crystal works as a cavity dumper. A single pulse of 160 μJ with pulse duration of 680 ps is obtained. The laser beam diameter is measured as 1.2 mm and the beam propagation factor M2 is around 1.5 by using an InGaAs infrared detector.