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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 25, Iss. 8 — Aug. 1, 2008
  • pp: 1380–1386

Advanced bismuth-doped lead-germanate glass for broadband optical gain devices

M. Hughes, T. Suzuki, and Y. Ohishi  »View Author Affiliations


JOSA B, Vol. 25, Issue 8, pp. 1380-1386 (2008)
http://dx.doi.org/10.1364/JOSAB.25.001380


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Abstract

We fabricated a series of glasses with the composition 94.7 - χ GeO 2 - 5 Al 2 O 3 - 0.3 Bi 2 O 3 - χ PbO ( χ = 0 24 mol. % ) . Characteristic absorption bands of bismuth centered at 500, 700, 800, and 1000 nm were observed. Adding PbO was found to decrease the strength of bismuth absorption. The addition of 3%–4% PbO resulted in a 50% increase in lifetime, a 20-fold increase in quantum efficiency, and a 28-fold increase in the product of emission cross section and lifetime on the 0% PbO composition. We propose that the 800 nm absorption band relates a different bismuth center than the other absorption bands.

© 2008 Optical Society of America

OCIS Codes
(140.3380) Lasers and laser optics : Laser materials
(300.2530) Spectroscopy : Fluorescence, laser-induced

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: February 28, 2008
Revised Manuscript: June 4, 2008
Manuscript Accepted: June 15, 2008
Published: July 30, 2008

Citation
M. Hughes, T. Suzuki, and Y. Ohishi, "Advanced bismuth-doped lead-germanate glass for broadband optical gain devices," J. Opt. Soc. Am. B 25, 1380-1386 (2008)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-25-8-1380

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