Amplification Properties of Femtosecond Laser-Written Er<sup>3+</sup>/Yb<sup>3+</sup> Doped Waveguides in a Tellurium-Zinc Glass

<table>Optical setup used for femtosecond laser waveguide writing.</table>

Advances in Optical Technologies

Figure 2: Amplification Properties of Femtosecond Laser-Written Er<sup>3+</sup>/Yb<sup>3+</sup> Doped Waveguides in a Tellurium-Zinc Glass 