Abstract

We report on the continuous-wave and passively Q-switched waveguide laser at the wavelength of ∼1024 nm, based on the (Yb_0.1Y_0.9)₃(Sc_1.5Ga_0.5)Ga₃O₁₂ (Yb:YSGG) crystal. The ridged waveguide was fabricated on the surface of 100 at% Yb:YSGG crystal by the swift ion irradiation and the precise diamond blade dicing. Utilizing this waveguide as the gain medium and resonant cavity, the laser emission at ∼1024 nm was realized. Coating the tungsten disulfide onto the waveguide surface as the saturable absorber, the Q-switched laser emission was also obtained with the pulse duration of 125 ns.

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