Polarization switching in the 2-μm Tm:KLu(WO4)2 laser

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Published 2 December 2011 • Published under licence by IOP Publishing Ltd
, , Citation M Segura et al 2012 Laser Phys. Lett. 9 104 DOI 10.1002/lapl.201110103

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1 Física i Cristallografía de Materials i Nanomaterials (FiCMA-FiCNA-EMaS), Universitat Rovira i Virgili (URV), Campus Sescelades c/Marcell Domingo, s/n, 43007 Tarragona, Spain

2 Department of Quantum Electronics, Faculty of Physics, Sofia University, 5, James Bourchier Blvd., 1164 Sofia, Bulgaria

3 Max-Born-Institute for Nonlinear Optics and Short Pulse Spectroscopy, 2A, Max-Born-Strasse, 12489 Berlin, Germany

Dates

  1. Received 23 August 2011
  2. Accepted 5 September 2011
  3. Published

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1612-202X/9/2/104

Abstract

We report on polarization switching in the Tm:KLu(WO4)2 laser between the Nm and Np states oscillating at different wavelengths: 1946 nm for Nm and 1922 nm for Np. There is a certain power range where the two laser polarizations coexist in this biaxial crystal. The switching strongly depends on the thermal management of the active medium through either the mode matching between the pump and the laser beams or the cooling of the crystal faces.

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