Physical and Spectroscopic Properties of Yb3+-Doped Fluorophosphate Laser Glasses

Table 1

Chemical composition of Yb³⁺-doped fluorophosphate glasses.

	A0	A1	A2	A3	A4	B1	B2	B3	B4
P2O5	63	63	63	63	63	44	44	44	44
Al2O3	7	7	7	7	7	7	7	7	7
Nb2O5	1	1	1	1	1	4	4	4	4
Li2O	10	7.5	5	2.5	—	—	—	—	—
BaO	18	13.5	9	4.5	—	—	—	—	—
LiF	—	2.5	5	7.5	10	10	10	10	—
NaF	—	—	—	—	—	10	10	—	10
MgF2	—	—	—	—	—	24	—	20	20
CaF2	—	4.5	9	13.5	18	—	24	14	14
Yb2O3	1	1	1	1	1	1	1	1	1