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Tm:fiber laser in-band pumping cryogenically-cooled Ho:YAG laser

By J.I. Mackenzie, W.O.S. Bailey, D.Y. Shen, L. Pearson, Y. Yang and W.A. Clarkson

Abstract

Cryogenically-cooled diode-pumped lasers have received significant interest in recent years for their demonstrated orders of magnitude improvement in output radiance using simple laser resonator configurations. Here we present a technique that offers the potential for a further order of magnitude improvement utilising the in-band-pumping hybrid-laser architecture to excite cryogenically-cooled bulk gain media. Preliminary results will be discussed, for a narrow linewidth Tm:fiber MOPA system operating in the 100W regime, pumping a cryogenically cooled Ho:YAG gain element, and employing a simple cavity configuration. Low quantum defect operation and power-scaling potential will be discussed

Topics: QC, TK
Year: 2009
OAI identifier: oai:eprints.soton.ac.uk:65802
Provided by: e-Prints Soton

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