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Opt Express. 2011 Dec 5;19(25):25279-89. doi: 10.1364/OE.19.025279.

Continuous-wave laser generation at ~2.1 µm in Ho:KRE(WO4)2 (RE = Y, Gd, Lu) crystals: a comparative study.

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1
Universitat Rovira i Virgili, Campus Sescelades c/Marcel·lí Domingo, Tarragona, Spain.

Abstract

The laser performance of the monoclinic Ho:RE(WO4)2 (RE = Y, Gd, Lu) crystals is compared under identical experimental conditions. The comparison deals with the laser transition of Ho3+ at ~2.1µm by using two different pump sources, a diode laser operating at 1941 nm and a diode-pumped Tm:KLu(WO4)2 laser operating at 1946 nm. The results show internal slope efficiencies of ~60% and output powers exceeding 400 mW. The laser performance of Ho:KY(WO4)2 and Ho:KLu(WO4)2 is quite similar and superior to Ho:KGd(WO4)2.

PMID:
22273918
[Indexed for MEDLINE]
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