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Optics Letters

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  • Vol. 29, Iss. 17 — Sep. 1, 2004
  • pp: 1998–2000

Bismuth- and aluminum-codoped germanium oxide glasses for super-broadband optical amplification

Mingying Peng, Jianrong Qiu, Danping Chen, Xiangeng Meng, Ivyun Yang, Xiongwei Jiang, and Congshan Zhu  »View Author Affiliations


Optics Letters, Vol. 29, Issue 17, pp. 1998-2000 (2004)
http://dx.doi.org/10.1364/OL.29.001998


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Abstract

Broadband infrared luminescence from bismuth-doped germanium oxide glasses prepared by a conventional melting–quenching technique was discovered. The absorption spectrum of the glasses covered a wide range from the visible to the near-infrared wavelength regions and consisted of five broad peaks below 370, 500, 700, 800, and 1000 nm. The fluorescence spectrum exhibited broadband characteristics (FWHM) greater than 300 nm with a maximum at 1300 nm pumped by an 808-nm laser. The fluorescence lifetime at room temperature decreased with increasing Bi2O3 concentration in the glass. Codoping of aluminum and bismuth was indispensable for the broadband infrared luminescence in GeO2:Bi, Al glass.

© 2004 Optical Society of America

OCIS Codes
(160.2750) Materials : Glass and other amorphous materials
(160.4670) Materials : Optical materials

Citation
Mingying Peng, Jianrong Qiu, Danping Chen, Xiangeng Meng, Ivyun Yang, Xiongwei Jiang, and Congshan Zhu, "Bismuth- and aluminum-codoped germanium oxide glasses for super-broadband optical amplification," Opt. Lett. 29, 1998-2000 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-17-1998


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