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High-power in-band pumped Er:YAG laser at 1617 nm

By J.W. Kim, D.Y. Shen, J.K. Sahu and W.A. Clarkson

Abstract

High-power room-temperature operation of an Er:YAG laser at 1617 nm in-band pumped by a cladding-pumped Er,Yb fiber laser at 1532 nm is reported. The Er:YAG laser yielded 31 W of continuous-wave output in a beam with M2.2.2 for 72 W of incident pump power. The threshold pump power was 4.1 W and the slope efficiency with respect to incident pump power was ~47 %. The influence of erbium doping level and resonator design on laser performance is discussed, and the prospects for further increase in output power and improvement in lasing efficiency are considered

Topics: TK, QC
Year: 2008
OAI identifier: oai:eprints.soton.ac.uk:52039
Provided by: e-Prints Soton
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