Abstract
Tm:LuYO3 ceramic is reported as an effective laser gain medium, for the first time to the best of our knowledge. For continuous-wave laser operation, a maximum output power of 1.55W with a slope efficiency of 19.9% is achieved at 2050nm. Passive Q-switching of the Tm:LuYO3 ceramic is operated using a Cr:ZnSe saturable absorber. Single-wavelength Q-switching at 2047nm is obtained with a maximum average output power of 0.54W, a pulse width of 120.3ns, a pulse energy of 20.5μJ, and a pulse peak power of 170.6W. Simultaneous dual-wavelength Q-switching at 1957 and 2047nm is also attained with corresponding parameter values of 0.92W, 151.6ns, 30.2μJ, and 199.1W. These results indicate that Tm:LuYO3 ceramic lasers could be a promising laser source operating in the eye-safe spectral region.
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