Single-Mode index-guiding photonic crystal fibers for the middle infrared

Arnon Millo*, Lilya Lobachinsky, Abraham Katzir

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Single-mode optical fibers for the middle infrared (mid-IR) (λ = 3 -30 μm) are needed for many applications such as IR fiber lasers, spatial filtering, and interferometry. There has only been limited success in the development of such fibers, due to the lack of suitable materials that have high transmission in this spectral range. In this letter, we discuss the development and optical measurements on single-mode index-guiding photonic crystal fibers based on silver-halide crystalline materials which are highly transparent in the mid-IR. These fibers were designed to have a large core area and to maintain a single-mode operation over a wide spectral range.

Original languageEnglish
Pages (from-to)869-871
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number10
StatePublished - 15 May 2008


  • Microstructured fibers
  • Optical fibers for the middle infrared (mid-IR)
  • Silver-halides
  • Single-mode fibers (SMFs)


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