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Proceedings Paper

CW laser operation of a highly-doped Tm:KLu(WO[sub]4[/sub])[sub]2[/sub]/KLu(WO[sub]4[/sub])[sub]2[/sub] thin disk epitaxial laser
Author(s): Sergei Vatnik; Ivan Vedin; Maria Cinta Pujol; Xavier Mateos; Joan J. Carvajal; Magdalena Aguilo; Francesc Diaz; Uwe Griebner; Valentin Petrov
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Paper Abstract

We demonstrate the first thin disk epitaxial Tm-laser based on the monoclinic KLu(WO4)2 with 15 at. % doping. The doped epitaxial layer serving as an active medium is only 80 μm thick. The large absorption enables efficient pumping with only a single double pass of the pump radiation from the diode-laser. For output coupling between 0.4% and 2.8 %, the slope efficiency in the continuous-wave regime is in the 7-11% range and the laser threshold is 1.5...2.5 W of absorbed pump power. The laser emission spectra are centered at ~1850, 1915 and 1940 nm for output couples of 2.8%, 1.6% and 0.4% transmission, respectively. In all cases the emission spectra are "structured", consisting of a number (typically 5...10) of narrow emission lines spread irregularly over 15...30 nm.

Paper Details

Date Published: 17 February 2010
PDF: 8 pages
Proc. SPIE 7578, Solid State Lasers XIX: Technology and Devices, 75780E (17 February 2010); doi: 10.1117/12.841154
Show Author Affiliations
Sergei Vatnik, Institute of Laser Physics (Russian Federation)
Ivan Vedin, Institute of Laser Physics (Russian Federation)
Maria Cinta Pujol, Univ. Rovira i Virgili (Spain)
Xavier Mateos, Univ. Rovira i Virgili (Spain)
Joan J. Carvajal, Univ. Rovira i Virgili (Spain)
Magdalena Aguilo, Univ. Rovira i Virgili (Spain)
Francesc Diaz, Univ. Rovira i Virgili (Spain)
Uwe Griebner, Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie (Germany)
Valentin Petrov, Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie (Germany)

Published in SPIE Proceedings Vol. 7578:
Solid State Lasers XIX: Technology and Devices
W. Andrew Clarkson; Norman Hodgson; Ramesh K. Shori, Editor(s)

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