Recent advances in 3.5 μm erbium-doped mid-infrared fiber lasers

Ori Henderson-Sapir, Andrew Malouf, Nathaniel Bawden, Jesper Munch, Stuart Jackson, David J. Ottaway

Research output: Contribution to journalArticlepeer-review

55 Citations (Scopus)


The performance of mid-infrared Er3+-doped fiber lasers has dramatically improved in the last few years. In this paper we present an overview of the progress in 3.5 μm fiber lasers based on the dual-wavelength pumping approach. The cross-section of the excited state absorption transition used by the 1973 nm second pump is found experimentally. A numerical simulation of the expected Q-switched behavior of this fiber laser is presented. This shows that increasing the power of the 977 nm pump is important to achieve high peak power pulses.

Original languageEnglish
Article number0900509
Pages (from-to)1-9
Number of pages9
JournalIEEE Journal of Selected Topics in Quantum Electronics
Issue number3
Publication statusPublished - 2017


  • 2.8 μm
  • 3.5 μm
  • dual-wavelength
  • Er3+
  • erbium
  • fiber
  • infrared
  • Laser
  • midinfrared
  • model
  • numerical
  • optics
  • optimization
  • simulation


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