Abstract
The 2.05μm emission has been obtained using a 980nm laser excitation in Ho3+/Yb3+/Er3+ triply doped fluorotellurite glass. Strong emission near 2.05μm is demonstrated and the corresponding energy transfer mechanisms are discussed and analyzed according to the photoluminescence performance and absorption measurements. Yb3+ and Er3+ ions can absorb the pumping energy and transfer it to Ho3+ ions efficiently. These results indicate that this Ho3+/Yb3+/Er3+ triply doped fluorotellurite glass has potential applications in 2.0μm laser.
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