Photosensitivity of the Er/Yb-Codoped Schott IOG1 Phosphate Glass Using 248 nm, Femtosecond, and Picosecond Laser Radiation

<table>Optical microscope picture obtained from a
side polished IOG1 phosphate glass sample, exposed using 248 nm, 500-femtosecond
laser radiation and 36 000
pulses of 258 mJ/cm<sup>2</sup> energy density. The red line is a normalized gray
scale absorption line obtained using image processing.</table>

Laser Chemistry

fig1

Figure 1

Figure 1: Photosensitivity of the Er/Yb-Codoped Schott IOG1 Phosphate Glass Using 248 nm, Femtosecond, and Picosecond Laser Radiation 