Electronically tunable mid-infrared mode-locked dysprosium fiber laser with over 330nm tunability

R. I. Woodward, M. R. Majewski, S. D. Jackson

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

1 Citation (Scopus)


Mode-locked fiber lasers are currently limited to sub-3-μm wavelengths, despite application-driven demand for longer wavelength mid-IR pulse sources. Erbium- and holmium-doped fluoride fiber lasers are emerging for 2.7-2.9 μm emission, yet further extending this coverage is challenging. Here, we propose a new approach using dysprosium-doped fiber with frequency shifted feedback (FSF), achieving 33 ps pulses with up to 2.7 nJ energy, tunable from 2.97 to 3.30 μm. Notably, this is the longest wavelength mode-locked fiber laser and the most broadly tunable pulsed fiber source to date. Simulations are also performed, offering insights into the dynamics of FSF pulse generation.

Original languageEnglish
Title of host publicationFiber Lasers XVI
Subtitle of host publicationTechnology and Systems
EditorsAdrian L. Carter, Liang Dong
Place of PublicationBellingham, WA
Number of pages8
ISBN (Electronic)9781510624375
ISBN (Print)9781510624368
Publication statusPublished - 2019
EventFiber Lasers XVI: Technology and Systems 2019 - San Francisco, United States
Duration: 4 Feb 20197 Feb 2019

Publication series

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


ConferenceFiber Lasers XVI: Technology and Systems 2019
Country/TerritoryUnited States
CitySan Francisco


  • fiber lasers
  • mode-locked lasers
  • mid-infrared lasers
  • dysprosium


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