Beam quality of photonic-crystal fibers

Arash Mafi, Jerome V. Moloney

Research output: Contribution to journalArticlepeer-review

40 Scopus citations


In this paper, we investigate the beam quality of photonic-crystal fibers (PCFs) with one, three, and seven missing airholes. The beam quality factor M2 of a PCF is generally larger than unity, even if it is single mode. The results are especially important for the design and measurements of single-mode PCF lasers. A comparison between an M2 measurement of the laser beam and the reported numbers can establish whether a PCF laser is operating as single mode or is contaminated by higher order modes.

Original languageEnglish (US)
Pages (from-to)2267-2270
Number of pages4
JournalJournal of Lightwave Technology
Issue number7
StatePublished - Jul 2005


  • Beam quality factor
  • Photonic crystals

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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