Well-confined Yb:GdVO4 laser waveguide formed by MeV C3+ ion implantation

▶ The Yb:GdVO4 planar waveguide has been fabricated by ion implantation. ▶ The dark mode spectra were measured by the prism coupling method. ▶ The refractive index profile includes a non-leaky guiding region. ▶ The beam propagation results indicate that the waveguide can be well-confined. ▶ The efficient Yb3+-related emission in Yb:GdVO4 was observed at room temperature.