We have studied Nd 3+ /Yb 3+ co-doped Bi 2 O 3 -B 2 O 3 -TeO 2 glasses for solar pumped lasers, and compared to Nd 3+ -doped Bi 2 O 3 -B 2 O 3 -TeO 2 glasses. Nd 3+ /Yb 3+ co-doped Bi 2 O 3 -B 2 O 3 -TeO 2 glasses show large emission intensity compared to Nd 3+ -doped Bi 2 O 3 -B 2 O 3 -TeO 2 glasses.
P.S. IvanovI. V. MochalovA. V. Sandulenko