Mitigation of photodegradation in 790 nm-pumped Tm-doped fibers

  title={Mitigation of photodegradation in 790 nm-pumped Tm-doped fibers},
  author={Gavin Frith and Adrian Carter and Bryce Samson and Jessica Veronica Faroni and Kevin Farley and Kanishka Tankala and Graham. E. Town},
The capability of Tm-doped silica fibers pumped at 790nm to efficiently produce high power emission in the 1.9~2.1μm region has been well documented to date but little has been presented on the reliability of this technology. Early experiments highlighted that photodarkening can be a significant concern when Tm-doped silica fibers are exposed to high intensity blue light. We present a discussion of the processes responsible for the production of blue light in Tmdoped fibers pumped at 790nm and… CONTINUE READING
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