1881 nm Tm:YAG ceramic laser with a volume bragg grating as a cavity mirror

We demonstrate a narrow linewidth 1881 nm Tm:YAG ceramic laser that combines the advantages of in-band pumping at 1617 nm and volume Bragg grating as a wavelength selection device. With an output coupler of 5% transmission, a maximum output power of 200 mW is obtained at 1881 nm with a linewidth of