Erbium-doped mid-infrared fiber lasers

Ori Henderson-Sapir, Andrew Malouf, Nathaniel Bawden, Elizaveta Klantsataya, Jesper Munch, Matthew R. Majewski, Stuart D. Jackson, Hiraku Matsukuma, Shigeki Tokita, Sze Yun Set, Shinji Yamashita, David J. Ottaway

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

1 Citation (Scopus)


The performance of mid-infrared fiber lasers operating on the 3.5 μm transition in erbium has improved significantly since the first demonstration that dual wavelength pumping allowed efficient operation. In this contribution, we will discuss the progress of fiber lasers that operate on this transition with an emphasis on advances towards short pulse generation and wavelength agility. Mode-locked operation using saturable absorption is a robust means of achieving ultra-short pulse operation in the near infrared but achieving this in the mid-infrared has been elusive. We will also describe our characterization of the mid-infrared performance of graphene, a material which has been very successfully applied to mode-locked pulse generation in the near infrared.

Original languageEnglish
Title of host publicationLaser Technology for Defense and Security XV
EditorsMark Dubinskiy, Timothy C. Newell
ISBN (Electronic)9781510626270
Publication statusPublished - 2019
EventLaser Technology for Defense and Security XV 2019 - Baltimore, United States
Duration: 2019 Apr 172019 Apr 18

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceLaser Technology for Defense and Security XV 2019
Country/TerritoryUnited States


  • 3.5 micron
  • Dual wavelength pumping
  • Erbium
  • Fiber-laser
  • Mid-IR
  • Q-switching
  • Wavelength tuning


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