Efficient holmium-doped fluoride fiber laser emitting 2.1 µm and blue upconversion fluorescence upon excitation at 2 µm

Opt Express. 2010 Sep 13;18(19):20164-9. doi: 10.1364/OE.18.020164.

Abstract

We demonstrate a highly efficient and high power Ho(3+)-doped fluoride glass fiber laser that is resonantly pumped with a Tm(3+)-doped silicate glass fiber laser operating at 2.051 µm. The laser operates at 2080 nm and generated 6.66 W at a slope efficiency of 72%. We observe strong visible upconversion fluorescence centered at a variety of wavelengths including 491 nm which results from three sequential energy transfer upconversion processes; the fluorescence to pump energy ratio for this emission is one the largest reported to date.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Equipment Design
  • Equipment Failure Analysis
  • Fiber Optic Technology / instrumentation*
  • Fluorescence
  • Fluorides / chemistry*
  • Holmium / chemistry*
  • Infrared Rays
  • Lasers, Solid-State*
  • Lenses*

Substances

  • Fluorides
  • Holmium