Abstract
An Er3+-doped oxyfluorogallate glass is investigated as a laser material with 2.7µm emission. The 2.7µm emission properties of the Er3+-doped oxyfluorogallate glasses are obtained using a 980nm laser diode and their spontaneous transition probabilities and branching ratios are predicted using Judd–Ofelt theory. The maximum value of emission cross-section of Er3+ around 2.7µm reached 1.32×10−20cm2, which suggests a very promising application of oxyfluorogallate glass for efficient 2.7µm solid-state laser system.
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