Spectroscopic properties and thermal stability of erbium-doped bismuth-based glass for optical amplifier

The spectroscopic properties and thermal stability of Er(sub 2)O(sub 3) doped Bi(sub 2)O(sub 3)-B(sub 2)O(sub 3)-Na(sub 2)O glasses are tested and a correlation between the content and the B(sub 2)O(sub 3) content and the spectroscopic properties is found. The replacement of B(sub 2)O(sub 3) for Bi(sub 2)O(sub 3) led to the strengthening of the network structure and improved the stability of glass.