Absorption, gain, and laser action in bismuth-doped aluminosilicate optical fibers

Vladislav V. Dvoyrin, Alexander V. Kir'Yanov, Valery M. Mashinsky, Oleg I. Medvedkov, Andrey A. Umnikov, Alexei N. Guryanov, Evgeny M. Dianov

Research output: Contribution to journalArticlepeer-review


In this study, bismuth-doped fiber lasers operating at the wavelength of 1179 nm with an optical efficiency of up to 28% are realized. The fiber gain upon 1-μm pumping declines, while the unsaturable absorption increases with increasing the small-signal absorption. We conclude that up-conversion and excited-state absorption are responsible for limiting the efficiency of such lasers.

Original languageEnglish
Pages (from-to)182-190
Number of pages9
JournalIEEE Journal of Quantum Electronics
Issue number2
Early online date22 Dec 2009
Publication statusPublished - Feb 2010


  • Infrared spectroscopy
  • Optical fiber lasers
  • Optical fiber materials


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