Room temperature operation of single frequency Tm:LuAG laser end-pumped by laser-diode

Abstract

In this letter we report a diode-pumped single frequency Tm:LuAG laser at room temperature. One uncoated fused silica etalon (0.1 mm) and one uncoated YAG etalon (1 mm) are employed to narrow the laser line-width. Single frequency laser is achieved by tuning the angle of the etalons. The oscillating wavelength can be changed (from 2018 to 2030 nm) and at each wavelength, single-frequency laser is achieved. The maximum single frequency laser power is up to 148.0 mW with the central wavelength of 2026.4 nm. To our knowledge, this is the first time to obtain single-frequency Tm:LuAG laser of up to 148.0 mW with Fabry-Perot etalons in the cavity.