Diode pumped dysprosium fiber laser

Matthew R. Majewski*, Md. Ziaul Amin, Thibaud Berthelot, Stuart D. Jackson

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review


We present preliminary results relating to laser emission at 3:16 μm from a Dy fiber laser that is diode pumped at 800 nm. To allow strong diode pump absorption and to capture improved quantum efficiencies resulting from cross relaxation, the Dy:ZBLAN fiber was co-doped with Tm ions in a 10 to 1 concentration ratio to Dy. A resonant energy transfer from Tm to Dy provides an inversion on the 6H13/2 to 6H15/2 transition. Maximum output power of 5.5 mW at a slope efficiency of 1.3 % was produced from a highly non-optimal arrangement. System performance is bench marked against well established resonant pumping of the Dy upper state. Measurement of fluorescence lifetimes of both dopants allows for qualitative assessment of the energy transfer efficiency. A potentially detrimental energy transfer mechanism is identified and discussed.

Original languageEnglish
Title of host publicationFiber Lasers XVII
Subtitle of host publicationTechnology and Systems
EditorsLiang Dong
Place of PublicationBellingham, WA
Number of pages6
ISBN (Electronic)9781510632844
ISBN (Print)9781510632837
Publication statusPublished - 2020
EventFiber Lasers XVII: Technology and Systems - San Francisco, United States
Duration: 3 Feb 20206 Feb 2020

Publication series

NameProceedings of SPIE
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceFiber Lasers XVII: Technology and Systems
Country/TerritoryUnited States
CitySan Francisco


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