Аннотация:We demonstrate continuous wave and passively Q-switched Er,Yb:GdMgB5O10 microchiplasers emitting in the spectral range of 1.5–1.6 µm. A maximal output power of 220 mW wasobtained at 1568 nm at an absorbed pump power of 2.3 W with a slope efficiency of 18%. Byusing an MBE-grown Cr:ZnS thin layer as a saturable absorber laser pulse with a duration of24 ns and an energy of 3 µJ at a repetition rate of 50 kHz were obtained at a wavelength of1568 nm.