title: Theoretical model predictions and experimental results for a wavelength switchable Tm:YAG laser.
abstract: We present a theoretical model study of a quasi-three-level laser with particular attention given to the Tm:YAG laser. The oscillating conditions of this laser were theoretically analyzed from the point of the pump threshold while taking into account reabsorption loss. The laser oscillation at 2.02 μm with large stimulated emission sections was suppressed by selecting the appropriate coating for the cavity mirrors, then an efficient laser-diode side-pumped continuous-wave Tm:YAG crystal laser operating at 2.07 μm was realized. Experiments with the Tm:YAG laser confirmed the accuracy of the model, and the model was able to accurately predict that the high Stark sub-level within the H36ground state manifold has a low laser threshold and long laser wavelength, which was achieved by decreasing the transmission of the output coupler.
authors.forename: Yanxiong
authors.initials: Y
authors.lastname: Niu
authors.forename: Caili
authors.initials: C
authors.lastname: Wang
authors.forename: Wenwen
authors.initials: W
authors.lastname: Liu
authors.forename: Haisha
authors.initials: H
authors.lastname: Niu
authors.forename: Bing
authors.initials: B
authors.lastname: Xu
authors.forename: Da
authors.initials: D
authors.lastname: Man
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D053844:Lasers, Solid-State; D008027:Light; D008962:Models, Theoretical; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation