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Proceedings Paper

Ho:KRE(WO4)2, RE=(Y, Gd, Lu), CW laser performance near 2.1 micron under resonant pumping by a Tm:KLu(WO4)2 laser
Author(s): Venkatesan Jambunathan; Xavier Mateos; Maria Cinta Pujol; Joan Josep Carvajal; Francesc Díaz; Magdalena Aguiló; Uwe Griebner; Valentin Petrov
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Paper Abstract

Continuous-wave (CW) lasing of Ho in KRE(WO4)2 (RE=Y, Gd, Lu) crystals has been compared using in-band pumping by a diode pumped Tm:KLu(WO4)2 laser under identical conditions at room temperature. The three monoclinic double tungstate hosts perform similarly with the maximum output power obtained for Ho:KY(WO4)2, 406 mW with slope efficiency of 59.9%. For Ho:KLu(WO4)2 the maximum power reached 392 mW but the slope efficiency was slightly higher, 61.6%. Ho:KGd(WO4)2, for which the ionic radius difference between dopant and substituted ions is maximum, generated an output power of 368 mW with slope efficiency of 53.2%.

Paper Details

Date Published: 15 February 2012
PDF: 8 pages
Proc. SPIE 8235, Solid State Lasers XXI: Technology and Devices, 823517 (15 February 2012); doi: 10.1117/12.907127
Show Author Affiliations
Venkatesan Jambunathan, Univ. Rovira i Virgili (Spain)
Xavier Mateos, Univ. Rovira i Virgili (Spain)
Max-Born-Institute for Nonlinear Optics and Ultrafast Spectroscopy (Germany)
Maria Cinta Pujol, Univ. Rovira i Virgili (Spain)
Joan Josep Carvajal, Univ. Rovira i Virgili (Spain)
Francesc Díaz, Univ. Rovira i Virgili (Spain)
Magdalena Aguiló, Univ. Rovira i Virgili (Spain)
Uwe Griebner, Max-Born-Institute for Nonlinear Optics and Ultrafast Spectroscopy (Germany)
Valentin Petrov, Max-Born-Institute for Nonlinear Optics and Ultrafast Spectroscopy (Germany)


Published in SPIE Proceedings Vol. 8235:
Solid State Lasers XXI: Technology and Devices
W. Andrew Clarkson; Ramesh K. Shori, Editor(s)

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