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We have reported on the development of the 1.34-μ.m high-power mode-locked Nd:GdVO4 laser with a semiconductor saturable absorber mirror. Based on optimum resonator design, average output power of 2.2 W was produced, corresponding to a slope efficiency of 17%. The laser operated at five spectral bands around 1.34 μ.m with long-time stability. 3.3 ps of pulse duration was obtained, which is the best performance among 1.3-μ.m mode-locked neodymium-doped lasers.