Tm3+-based waveguide lasers in monoclinic double tungstates

We review our recent results on the fabrication and characterization of Tm3+-based waveguide lasers on monoclinic potassium double tungstates. We demonstrated laser oscillation in the CW regime, at ∼1.84 μm, in slab and channel waveguides. In addition, using such guiding layers, we have demonstrated passive Q-switching in a slab waveguide laser.