140 W Cr:ZnSe laser system

Academic Article


  • We report a significant breakthrough in the development of fiber-pumped high-power CW laser systems based on Cr2+:ZnS and Cr2+:ZnSe gain media. We demonstrate output power levels of up to 140 W near 2500 nm, and 32 W at 2940 nm with corresponding optical efficiencies of 62% and 29%. Our novel approach is based on rapid simultaneous scanning of the collinear laser mode and pump beam across the Cr:ZnS/Se gain element which allows us to virtually eliminate thermal lensing effects and obtain unprecedented levels of output power with very high optical-to-optical efficiency.
  • Authors

    Published In

  • Optics Express  Journal
  • Digital Object Identifier (doi)

    Author List

  • Moskalev I; Mirov S; Mirov M; Vasilyev S; Smolski V; Zakrevskiy A; Gapontsev V
  • Start Page

  • 21090
  • End Page

  • 21104
  • Volume

  • 24
  • Issue

  • 18