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

A. Guhur*, S. D. Jackson

*Corresponding author for this work

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

We demonstrate a highly efficient and high power Ho3+-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.

Original languageEnglish
Pages (from-to)20164-20169
Number of pages6
JournalOptics Express
Volume18
Issue number19
DOIs
Publication statusPublished - 13 Sep 2010
Externally publishedYes

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