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Keywords:

  • mode locking;
  • saturable absorber;
  • Tm:KYW;
  • solid-state lasers;
  • diode-pumped lasers;
  • lead sulfide;
  • quantum dot

Abstract

Passive mode locking of a continuous wave diode-pumped Tm:KYW laser at 1.94 μm was demonstrated by using glass doped with PbS quantum dots as a saturable absorber. The laser operated in Q-switched mode-locking regime. Conversion efficiency of free-running output power to output power of pulsed operation was estimated at 30%. (© 2010 by Astro Ltd., Published exclusively by WILEY-VCH Verlag GmbH & Co. KGaA)