Intracavity coherent addition of single high-order modes Academic Article uri icon


  • We report on efficient intracavity coherent addition of several single high-order mode distributions in a multichannel laser resonator. The phase locking and coherent addition is achieved by using an intracavity interferometric beam combiner. The principle, configuration, and experimental results with pulsed Nd: YAG Laguerre–Gaussian TEM_01 and TEM_02 laser beam distributions are presented. The results reveal more than 95% combining efficiency with a nearly pure high-order mode output beam distribution in both free-running and Q-switched operation.

publication date

  • January 1, 2005