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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 14 — Jul. 15, 2014
  • pp: 4247–4250

Diode-pumped microchip Tm:KLu(WO4)2 laser with more than 3  W of output power

Josep Maria Serres, Xavier Mateos, Pavel Loiko, Konstantin Yumashev, Nikolai Kuleshov, Valentin Petrov, Uwe Griebner, Magdalena Aguiló, and Francesc Díaz  »View Author Affiliations


Optics Letters, Vol. 39, Issue 14, pp. 4247-4250 (2014)
http://dx.doi.org/10.1364/OL.39.004247


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Abstract

A diode-pumped microchip laser containing a quasi-monolithic plano–plano cavity is realized on the basis of a Tm:KLu(WO4)2 crystal. The maximum CW output power is 3.2 W (at an absorbed pump power of 6.8 W) and the slope efficiency as high as 50.4%. The laser is operating at 1946 nm in the TEM00 mode with a M2<1.05. Microchip operation with Tm:KLu(WO4)2 is, in principle, due to a special crystal cut along the Ng optical indicatrix axis. This crystal cut possesses positive near-spherical thermal lens that provides the required mode stabilization in the plano–plano cavity. Sensitivity factors of the thermal lens, “generalized” thermo-optic coefficients and constants describing the photoelastic effect are determined for the monolithic Tm:KLu(WO4)2 crystal.

© 2014 Optical Society of America

OCIS Codes
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.6810) Lasers and laser optics : Thermal effects

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: May 8, 2014
Revised Manuscript: June 6, 2014
Manuscript Accepted: June 6, 2014
Published: July 15, 2014

Virtual Issues
Vol. 9, Iss. 9 Virtual Journal for Biomedical Optics

Citation
Josep Maria Serres, Xavier Mateos, Pavel Loiko, Konstantin Yumashev, Nikolai Kuleshov, Valentin Petrov, Uwe Griebner, Magdalena Aguiló, and Francesc Díaz, "Diode-pumped microchip Tm:KLu(WO4)2 laser with more than 3  W of output power," Opt. Lett. 39, 4247-4250 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-14-4247

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