Abstract
Deeply dehydrated calcium aluminate glasses doped by rare-earth ions were synthesized and investigated. Spectroscopic properties of Tm3+ and Ho3+ doped glasses were found attractive for fiber lasers emitting in 2–2.5 μm spectral range. Cascade laser action (at 2300 and 2100 nm) in Tm doped bulk calcium aluminate glass was demonstrated for the first time.
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