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We report a compact high power Tm,Ho∶YAG laser nearly at room temperature.The laser-diode side-pumped Tm∶YAG and Tm,Ho∶YAG laser modules are operated in the same cavity.The laser yields 37.34 W of continuous wave output power under the temperature of 6℃,corresponding to a maximum slope efficiency of 16.7% when the output power lies from 5.1 W to 27.0 W.This is the first report on the combined Tm∶YAG and Tm,Ho∶YAG lasers for obtaining high power 2.1 μm laser.