High-power and highly efficient Tm3+-doped silica fiber lasers pumped with diode lasers operating at 1150 nm

Stuart D. Jackson*, Frank Bugge, Götz Erbert

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

An output power of 1.74 W at 2.03 μm. was generated at a slope efficiency of 51% when a double-clad Tm3+-doped silica fiber laser was pumped with high-power 1150 nm diode lasers. Pump excited state absorption from the upper laser level populates higher energy levels allowing cross relaxation to repopulate the upper laser level at a quantum efficiency greater than unity and to limit losses relating to additional pump excited state absorption. The output power was scaled to 4.77 W when both ends of the fiber were pumped.

Original languageEnglish
Pages (from-to)2873-2875
Number of pages3
JournalOptics Letters
Volume32
Issue number19
DOIs
Publication statusPublished - 1 Oct 2007
Externally publishedYes

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