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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 20, Iss. 2 — Feb. 1, 2003
  • pp: 280–283

Effective room-temperature luminescence in annealed chromium-doped silicate optical fibers

Vladislav V. Dvoyrin, Valery M. Mashinsky, Vladimir B. Neustruev, Evgeny M. Dianov, Alexei N. Guryanov, and Andrei A. Umnikov  »View Author Affiliations


JOSA B, Vol. 20, Issue 2, pp. 280-283 (2003)
http://dx.doi.org/10.1364/JOSAB.20.000280


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Abstract

The influence of annealing at 1000 °C on the absorption and luminescence spectra of chromium in aluminosilicate and gallium silicate fibers at temperatures of 77 and 300 K is investigated. The spectra of initially weak luminescence with a maximum at 1100 nm and a quantum yield of approximately 10<sup>−5</sup> at 300 K shift to the 790–880-nm range in annealed fibers. After annealing the quantum yield increases by as much as 10%. The luminescence lifetime is found to be approximately 20 μs. The luminescence changes are explained by a rearrangement of the nearest environment and recharge of chromium ions (Cr<sup>4+</sup> to Cr<sup>3+</sup>). The results obtained hold promise for the creation of tunable and ultrashort pulse fiber lasers.

© 2003 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence

Citation
Vladislav V. Dvoyrin, Valery M. Mashinsky, Vladimir B. Neustruev, Evgeny M. Dianov, Alexei N. Guryanov, and Andrei A. Umnikov, "Effective room-temperature luminescence in annealed chromium-doped silicate optical fibers," J. Opt. Soc. Am. B 20, 280-283 (2003)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-20-2-280


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