Due to increasing demand of 1 µm Q-switched fiber lasers for material processing, a reliable and cost-effective saturable absorber is needed. YAG:Cr4+ crystal appears as a material completely fulfilling these requirements. Indeed, it is the most popular solution for saturable absorber for solid state lasers. However reliable integration of the widely available bulk saturable absorber in a fiber laser is a rather serious challenge. In this paper we present a novel waveguide design for a saturable absorber based on the YAG:Cr4+ crystal. Such a waveguide is designed to be compatible with conventional fibers. Hence, such Waveguide Saturable Absorber (WSA) features low-loss butt-coupling with all available Yb3+ and Nd3+ -fiber lasers.
|Title of host publication||European Conference on Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009|
|Publication status||Published - 20 Nov 2009|
|Event||European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference, CLEO Europe - EQEC 2009 - Munich, Germany|
Duration: 14 Jun 2009 → 19 Jun 2009
|Conference||European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference, CLEO Europe - EQEC 2009|
|Period||14/06/09 → 19/06/09|