We report on a continuous-wave (CW) and passively Q-switched Er:Y2O3 ceramic laser in mid-infrared spectral region. In the CW\nregime, a maximum output power of 2.07W is achieved at 2717.3 nm with a slope efficiency of 13.5%. Stable passive Q-switching\nof the Er:Y2O3 ceramic laser is demonstrated based on semiconductor saturable absorber mirror. Under an absorbed pump power\nof 12.4W, a maximum average output power of 223mW is generated with a pulse energy of 1.7
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