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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 19, Iss. 8 — Aug. 1, 2002
  • pp: 1839–1843

Erbium-doped potassium bismuth gallate glasses

S. Q. Man, S. F. Wong, and E. Y. B. Pun  »View Author Affiliations

JOSA B, Vol. 19, Issue 8, pp. 1839-1843 (2002)

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We demonstrate potassium bismuth gallate glasses as suitable hosts for rare-earth-ion erbium (Er3+) operating in the 1.55-µm-wavelength region. The absorption and luminescence spectra along with the luminescence decay time were measured. The emission peak of the  4I13/24I15/2 transition is at the 1.53-µm wavelength, and the spectral bandwidth is 85 nm, which is one of the broadest. The lifetime of the  4I13/2 level is ∼2.42 ms, and the quantum efficiency is ∼100%. The emission cross section is estimated to be 12.4×10-21 cm2, which is one of the highest among different oxide glasses. The gain coefficient is also calculated, and our results show that potassium bismuth gallate glasses are excellent host materials for broadband-amplifier and high-power-laser applications.

© 2002 Optical Society of America

OCIS Codes
(160.2750) Materials : Glass and other amorphous materials
(160.5690) Materials : Rare-earth-doped materials
(250.4480) Optoelectronics : Optical amplifiers
(250.5230) Optoelectronics : Photoluminescence
(300.6250) Spectroscopy : Spectroscopy, condensed matter
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence

S. Q. Man, S. F. Wong, and E. Y. B. Pun, "Erbium-doped potassium bismuth gallate glasses," J. Opt. Soc. Am. B 19, 1839-1843 (2002)

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