Efficient 2 μm emission and energy transfer mechanism of Ho3+ doped fluorophosphate (cas 15181-43-8) glass sensitized by Er3+ ions

Add time:08/04/2019    Source:sciencedirect.com

fluorophosphate (cas 15181-43-8) glass co-doped with Er3+ and Ho3+ ions has been synthesized by high temperature melting method. Using a commercially available 980 nm laser diode, intense about 2 μm emissions were successfully obtained in present Ho3+/Er3+ co-doped glasses without obvious quenching. To understand 2 μm fluorescence behaviors of the prepared glasses, 1.55 μm emission spectra, energy transfer mechanism and microparameters from different levels of Er3+ to Ho3+ ions have been obtained and discussed. As a result, the Er3+/Ho3+ co-doped fluorophosphate glass with excellent spectroscopic properties might be appropriate host material for 2 μm solid laser.

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