Efficient low-threshold lasers based on an erbium-doped holey fiber

K. Furusawa, T. Kogure, J. K. Sahu, J. H. Lee, T. M. Monro, D. J. Richardson

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


We report experimental results on the continuous-wave lasers based on a small core erbium-doped holey fiber. In a simple Fabry-Pérot-type cavity with high output coupling, we demonstrate low-threshold (0.55 mw) high slope-efficiency (57.3%) operation confirming both the quality and exceptionally high gain efficiency of the fiber. In an all-fiber ring cavity where the cavity loss is reduced, we show that it is possible to achieve a low-threshold laser with extremely wide tunability (> 100 nm around 1550 nm). Our results illustrate some of the unique opportunities provided by active small core holey fibers.

Original languageEnglish
Pages (from-to)25-27
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number1
StatePublished - Jan 2005


  • Fiber laser
  • Holey optical fiber
  • Laser tuning
  • Microstructured optical fiber
  • Optical fiber fabrication
  • Photonic crystal fiber
  • Rare-earth doped fiber


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