Thermo-chemical strengthening of Nd: YAG laser rods Academic Article uri icon


  • Abstract High power Nd: YAG laser rods may easily exceed their fracture strength as a result of thermally induced tensile stress. Strengthening of such rods is achievable by wet chemical etching in concentrated orthophosphoric acid, or in a mixture of phosphoric and sulfuric acids, at elevated temperatures. In the present study, the etching rates of Nd: YAG in both etchants were determined as a function of temperature. The calibration curves thus obtained enabled the controlled removal of the outer" damaged" layer of lasing elements …

publication date

  • April 21, 2006